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Magnum IEC Low Voltage Air Circuit BreakersProduct Focus

For more information visit: www.cutler-hammer.eaton.comPG01301002E

For more information visit: www.cutler-hammer.eaton.com

1IntroductionMay 2003

PG01301002E

IntroductionOverview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3One Family . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Higher Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Drawout Cassettes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Functions and CharacteristicsOverview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Characteristics Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Design and Testing Standards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Nameplate Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Installation and Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Circuit Breaker Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Trip Units and Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Fixed Circuit Breakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36Drawout Circuit Breakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Phasing on Double-wide Breakers. . . . . . . . . . . . . . . . . . . . . . . . . . 39Accessory Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40Breaker Lock OFF Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Application and Installation InformationAmbient Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Bus Bar Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48Altitude Rating Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49Watts Loss Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49Electrical Clearances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Ordering InformationFactory Configured Breakers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51Factory Configured Cassettes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60Field Option Kits for Cassettes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62Field Option Kits for Circuit Breakers . . . . . . . . . . . . . . . . . . . . . . . 63Miscellaneous Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Engineering Data Reference Chart . . . . . . . . . . . . . . . . . . . . . . . . . . 68Trip Unit Curves. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69Connection Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82Dimensional Drawings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88


3OverviewMay 2003

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Cutler-Hammer Low Voltage AirCircuit Breakers have set the industrystandard for over three decades.When reliability and customerservice are paramount, Cutler-Hammer is the clear choice for IECapplications

There is a new generation of Cutler-Hammer Air Circuit Breakers that aresmaller with higher performanceand more versatility.

Magnum

Magnum Low Voltage Air CircuitBreakers are designed for ultimateapplication flexibility, with theneeds of both the power distributionequipment user and the low voltagepanel assembler in mind.

For maximum safety, a modern,through-the-door design permitsaccess to the breaker levering system,trip unit, controls, and indicators withthe door closed.

High withstand and interruptingratings provide for maximum selec-tivity and system coordination tomeet the needs of the high availablefault currents on today’s electricalpower distribution systems.

Field installable accessoriesminimize inventory and permit fullycertified field installation of currentsensors, rating plugs, trip units andaccessories.

A compact and modular family ofbreaker frame sizes makes thedesign of compact, economical andversatile enclosures a reality.

Magnum The New Standard in Low Voltage Air Circuit Breakers


Magnum circuit breakers are avail-able in a family of three physicalframe sizes, with the same basicheight and depth, differing only inwidth.

The MWN narrow frame is the highest performing power circuitbreaker of its size and rating class.Continuous current ratings are available from 800 to 2000 amperes.Withstand and interrupting ratingsare available from 40 to 65 kA at690Vac. The MWN compact sizeallows for application in compactenclosures of many types.

The MWI standard frame is ideallysuited for the construction of verticallystacked modular IEC Switchgear andSwitchboards. Continuous currentratings are available from 800 to3200 amperes in the same framewith uniform 125 mm pole centerspacing. Withstand ratings are available to 85 kA at 690 Vac andinterrupting ratings to 100 kA at 440Vac for improved system coordinationand service continuity.

The MWI double-wide frame isideal for application as main and tie breakers in high capacity power distribution systems. Continuouscurrent ratings are available in 4000,5000, and 6300 amperes. Withstandand interrupting ratings are availableto 100 kA at 690Vac for maximumsystem coordination with downstream devices.

4 One Family

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Three Frame Sizes in One Family


5Higher PerformanceMay 2003

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Magnum circuit breakers have thehighest levels of performance.

Higher interrupting capacityallows Magnum to be applied onnewer power distribution systemswith higher available fault currents.

Higher short time (withstand)current ratings along with selective(LS) Digitrip RMS trip units results intotal selectivity between main, feed-er, and branch circuit breakers.

Highest Levels of Performance

Interruptingup to65 kA

Interruptingup to

100 kA

Interruptingup to

100 kA

Short Timeup to65 kA

Short Timeup to85 kA

Short Timeup to

100 kA

MWNNarrow

MWIStandard

MWIDouble-wide

Icu at 690Vac

40 kA 50 kA 65 kA

65 kA 85 kA 100 kA ①

85 kA 100 kA

Performance Family

Magnum MWNNarrow Frame800 - 2000 A.

Magnum MWIStandard Frame

800 - 3200 A.

Magnum MWIDouble-wide Frame

4000 - 6300 A.

Continuous Current (A)

800 1000 1250 1600 2000 2500 3200 4000 5000 6300

① Note: Icu is 100kA at 440 Vac and 85 kA at 690 Vac.


The MWN narrow frame drawoutcircuit breaker is available in a com-pact cassette with horizontal pri-mary stabs and terminals, making itideal for single-high, compact enclo-sures. Optional vertical adapter kitsare available for applications wherebus bar termination in the verticalplane or multiple stacking of break-ers is preferred.

The MWI standard frame mates toa standard size cassette with horizon-tal primary stabs and terminals.Uniform 125 mm pole center spacingmakes the cassette ideal for applica-tions that require stacking of multiplecircuit breakers in a single enclosurestructure. Optional vertical adapterkits are available where bus bar ter-mination in the vertical plane is pre-ferred.

The MWI double-wide frame cir-cuit breaker uses a double-wide cas-sette designed to accommodate amaximum rating of 6300A.Horizontal primary stabs and termi-nals are provided as standard.Optional vertical adapter kits areavailable where bus bar terminationin the vertical plane is preferred.ingle enclosure structure as well.

6 Drawout Cassettes

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May 2003

Simplified Construction withThree Drawout Cassettes

MWN Narrow Frame Cassette

MWI Standard Frame Cassette

Front View (with circuit breaker) Rear View

Rear ViewFront View


7OverviewMay 2003

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Introduction

The Magnum Low Voltage Air CircuitBreaker affords customers the oppor-tunity to meet the increasingly complexrequirements of modern distributionsystems. It is designed and tested foruse in low voltage power distributionassemblies applied at nominal volt-ages of 220/415, 440, and 500/690 voltsac. Magnum is available in drawoutand fixed circuit breaker mountingconfigurations. High interrupting ratings up to 100kA without fuses andcontinuous current ratings from 800through 6300 amperes are covered bythree different frame sizes.

Magnum circuit breakers are witnessedand certified with a KENMA-KEURMark, and are built and tested in anISO 9000 certified facility. The circuitbreakers meet or exceed all applicableEN and IEC standards including:

IEC 947-2 Category B BS/EN 60947-2 Suitable in IEC 947-1/439-1 Low

Voltage Switchgear

Controls and indicators are function-ally grouped on the circuit breaker’sfront cover. The through-the-doordrawout design permits easy andsafe access to the front cover controls,as well as the trip unit and rackingdevice.

Intelligence Systems Digitrip microprocessor-based

true rms sensing trip units Protection and coordination Energy monitoring and power

quality Communications Protective relay features Integral testing Hand held test kit

Special Application Circuit Breakers Non-automatic circuit breakers - a

non-automatic circuit breaker doesnot include a trip unit, sensors orovercurrent release.

1100 Vac air circuit breakers. Contact Cutler-Hammer for other

special applications.

Functional Techniques Patented “Heal -Toe” contact

structure Improved contact material “C” Loop current path Braided current path connections Sealed, removable arc chambers

Reliability, Maintenance and Safety Front accessible and dedicated

secondary wiring Finger proof secondary contacts Drawout rail construction Front mounted, plug-in accessories Accessory viewing windows Proven operating mechanism Fewer individual parts Mechanical main contact wear

indicator One piece removable arc chutes

and covers Insulating and isolating arc

chambers Replaceable current path structures,

current sensors and trip units

Magnum circuit breakers utilize oneof a family of microprocessor-basedDigitrip electronic, rms sensing andprogrammable trip units to providesystem selectivity, advanced coordi-nation and communications.

Functional and Flexible Rigid frame of high strength

engineered thermoset compositeresins

Compact and lightweight Rugged, maintainable

construction Three frame sizes Four position drawout or fixed

mounting configurations Through-the-door drawout

construction Common height, depth and door

cutout Spring stored energy mechanism Electrical or manual operation

(field convertible) Field installable accessories.

Performance Plus Designed and tested to IEC

Standards Ten continuous current frame sizes

(800 through 6300A without fans) High interrupting ratings High withstand ratings Rated for 100% continuous

operation in enclosure 3 cycle closing


8 Characteristics Table

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May 2003

Standard Frame (MWI) 800

100012501600200025003200

100/85 ④85/65

➆

➆

––––

Magnum Frame

Circuit Breaker Characteristics ① ②

Continuous Current Rating (Amps at 40°C)

Interrupt Ratings at 690Vac Icu/Ics (kA rms)Withstand Rating Icw 1-sec/3-sec (kA rms)Maximum Break Time (msec)Maximum Closing Time (msec)Circuit Breaker Dimensions (mm) ⑤

HeightDepth Width (3-pole)Width (4-pole)HeightDepth Width (3-pole)Width (4-pole)

Circuit Breaker Weight (kg) ⑤3-pole4-pole3-pole4-pole3-pole4-pole

Non-Auto Switch Characteristics Maximum Interrupt Ratings at 690Vac Icu/Ics(kA rms)

Withstand Ratings Icw 1-sec/3-sec (kA rms)Continuous Current Range (Amps)Close and Latch Current (kA Peak) ➅Maximum Continuous Current Range (Amps)Close and Latch Current (kA Peak) ➅

Narrow Frame (MWN)

① Circuit breakers equipped with integral trip units have a making current release set to trip instantaneously at 25 x In peak current to preventclosing on a fault current exceeding that magnitude.② Magnum ACBs carry an IT rating at 440 Vac per EN60947-2 Annex H. Contact Cutler-Hammer for 690 Vac IT applications.③ The Icw 1-sec/3-sec rating is 50/30 kA for 2000 amp MWN 50kA breaker.④ Standard frame circuit breakers rated 100kA are equipped with a high instantaneous trip set to protect above 85kA rms. Icu is 100kA and Icsis 85kA at 440 Vac. Icu and Ics are 85kA at 690 Vac.⑤ The approximate weights and dimensions shown are based on horizontal terminals.➅ Close and latch ratings are applicable only to non-automatic switches. Non-automatic switches should be applied with a suitable externalovercurrent device with instantaneous trip to protect above the published close and latch rating.➆ The maximum available instantaneous interrupting rating for the standard frame non-automatic switch is 85kA.

MWNNarrowFrame

MWIStandard

Frame

Magnum Characteristics, Dimensions and Weights (continued on next page)

80010001250

––

40/4040/–

40/40

40/–to 1250

43––

8001000125016002000

50/5050/– ③

3050

425.7371.9317.7413

524.3474.2336

431.3

435448622832

50/50

50/– ③to 2000

55––

8001000125016002000

65/6565/40

65/65

65/40to 2000

69––

Fixed

Drawout

Fixed

Drawout

Cassette

800100012501600

–––

65/6565/–

65/65

65/–to 1600

55––

––––

200025003200

65/6565/50

65/65

65/50 200069

2500 & 3200110

800100012501600200025003200

85/8585/65

85/85

85/65to 2000

69

2500 & 3200110

3050

425.7371.9410.2537.2524.3474.2431.8558.8

58 to 6872 to 8670 to 86

88 to 11253 to 5655 to 68


9Characteristics TableMay 2003

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MWIDouble-wide

Frame

(continued from previous page)

Magnum Frame

Circuit Breaker Characteristics ① ②

Continuous Current Rating Amps at 40°C

Interrupt Ratings at 690Vac Icu/Ics (kA rms)Withstand Rating Icw 1-sec/3-sec (kA rms)Maximum Break Time (msec)Maximum Closing Time (msec)Circuit Breaker Dimensions (mm) ⑤

HeightDepth Width (3-pole)Width (4-pole)HeightDepth Width (3-pole)Width (4-pole)

Circuit Breaker Weight (kg) ⑤3-pole4-pole3-pole4-pole3-pole4-pole

Non-Auto Switch Characteristics Maximum Interrupt Ratings at 690Vac Icu/Ics(kA rms)

Withstand Ratings Icw 1-sec/3-sec (kA rms)Continuous Current Range (Amps)Close and Latch Current (kA Peak) ➅Maximum Continuous Current Range (Amps)Close and Latch Current (kA Peak) ➅

Double-wide Frame MWI4000

65/6565/–

107.5

144.7138.816690.3

113.4

65/65

65/–to 4000

138

––

400050006300

85/8585/–4070

425.7371.9886.51120524.3474.2909

1036

125.2163.3157.420096.2

120.7

85/85

85/–to 4000

138

5000 & 6000217

400050006300

100/100100/–

100/100

100/–to 4000

138

5000 & 6000217

Fixed

Drawout

Fixed

Drawout

Cassette


The Magnum air circuit breaker wasdesigned and tested to meet therequirements of the world market. It is a 100% rated device, designed to carry 100% of its nameplate currentrating in an enclosure without deratingat a 40°C ambient.

Relative to the pollution degree,Magnum circuit breakers conform tothe requirements of Clause 6 of IEC947-2. This states that unless other-wise stated, the circuit breaker isintended for installation under envi-ronmental conditions of PollutionDegree 3.

Circuit Breakers are built and testedto applicable standards, including: International EN 60947-2

Category BCircuit Breakers are also suitable foruse in: IEC 947-1/439-1 Low Voltage

Switchgear

10 Design and Testing Standards

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Magnum......The Only KEMA-KEUR Certified Air Circuit Breaker

KEMA-KEUR Certification Product Test Certification–All 4 EN 60947-2 Test Sequences Manufacturing Location Certification Ongoing compliance ensured with spot facility and field product checks

ISO 9001 ISO 9002 Magnum Air Circuit

Breakers are designed toISO 9001

Magnum Air CircuitBreakers are manufacturedin an ISO 9002 Facility

KEMA–Foremost independent thirdparty certification body in the world

KEMA-KEUR Mark Indicates certifica-tion to the highestand most stringentKEMA Standards


11Nameplate IdentificationMay 2003

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Nameplate Identification

Magnum low voltage power circuitbreakers must be applied within theirnameplate ratings. Nameplates areprominently displayed on the front ofthe circuit breaker, and provideimportant information relative to thatspecific circuit breaker.

A Magnum circuit breaker is easilyidentified by its specific designation.

A

B

Low voltage power circuit breaker family name

Breaker family designation number

C Breaker frame size in amperes

D Interrupting capacity rating

E Factory Equipped Accessories

M W I C 3 2Circuit Breaker

TypeMWI - Standard andDouble Wide Frames

MWN - Narrow Frame

Interrupting Capacity

4 - 40,0005 - 50,0006 - 65,0008 - 85,000C - 100,000

① E - 150,000

FrameSize

08 - 800 Amps10 - 1000 Amps12 - 1250 Amps16 - 1600 Amps20 - 2000 Amps25 - 2500 Amps32 - 3200 Amps4N - 4000 Amps5N - 5000 Amps6N - 6300 Amps

AB

C

D

E

Magnum Designation Example

Typical Magnum DS Nameplate

① Reserved for future breaker


Sized to Simplify

Magnum low voltage power circuitbreakers are designed for simplifiedinstallation and use.

Three physical frame sizes through6300 amperes - More circuit breakers per

square centimeters- Increased ratings in less space

- Installation economy oftime,material and space

- Closed door circuit breaker levering

- DISCONNECT, TEST and CONNECT with door closed

Common height, depth and doorcutout- Installation ease and economy

Zero clearance mounting with drawout cassette- Vertical stacking economy

Four position drawout and fixedmountings- Customer flexibility

Fixed mounting with horizontal or vertical bus bar connections- Accommodate different bus

configurations

Through-the-door drawout- Clear access to trip unit, controls

and indicators

12 Installation and Use

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May 2003

Common Height, Depth and Cutout (3-Pole Illustration)

Dotted LineRepresents

CommonCutout

391mm(14.7”)

417mm”(16.4”)

894mm”(34.2”)Double

4000-6300A

414mm”(16.3”)

Standard 800-3200A

318mm” (12.5”)Narrow

800-1600A

Through-The-Door Drawout (Connect Position Shown)

CircuitBreaker

Side View

Rear of Compartment

PrimaryConnections Made

SecondaryConnection Made

CompartmentFront Door


13Circuit Breaker FeaturesMay 2003

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Summary

Rigid Frame HousingMagnum circuit breakers use a rigidframe housing construction of engi-neered thermoset composite resins.This material is strong and lightweighthaving a strength to weight ratiotwice that of steel. In addition tohigh strength structural properties,this material has excellent dielectriccharacteristics and resists arc tracking.

The 3-piece construction providessupport while isolating and insulatingpower conductors:

❶ A 2-piece case encloses currentpaths and arc chambers. The chambersact to channel arc gases up and outduring interruption.

❷ The operating mechanism andaccessories sit on the front of the

indicating functions and guidingoperations. Field installable accessoryitems can be identified by name andrating through viewing windows. An optional padlockable cover limitsaccess to the “ON” and “OFF” push-buttons. Complete access to the“ON” pushbutton can be preventedwith an optional prevent close cover.

case and are covered by an insulatingfront cover. Only the cover needs tobe removed to access the mechanismor add accessories.

The overall strength and rigidity ofthe design also contributes to higherperformance capabilities:

Higher Withstand Higher Interrupting

The Magnum rigid frame housingdesign allows for precise construction,eliminating the need for adjustments.The significantly reduced framedeflection during operation alongwith stiff component mountingresults in a longer life operatingmechanism.

Operating Panel The Magnum front cover (next page)contains a convenient operatingpanel with clear words and symbols

Magnum Front Accessible Operating Mechanism and Accessories

Magnum Rigid Frame Construction

Front Cover Case❷ ❶

Secondary Wiring Points

Field Installable Accessories(3 maximum)

Trip Unit

Electric Charging Motor

Manual Charge Handle

Operations Counter (optional)

Padlockable Levering DeviceAccess Door

Breaker Position Indicator

7

2

4

3

5

6

8

1

1

2

3

4

5

6

78


14 Circuit Breaker Features

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10

Magnum Drawout Circuit Breaker Front Cover

CONNECT

TEST

DISCONNECT

CONNECT

TEST

DISCONNECT

(Red)

(Green)

(Yellow)

(White)

(Green)

(Red)

5

6

8

7

Red = ConnectYellow = TestGreen = Disconnect

12

Optional Trip Flag (Pop Out Indicator)

Three Accessory Windows

Trip Unit

Rating Plug

Contact Status (Open-Close)

Spring Status (Charged-Discharged)

2

1

4

3

5

6

Manual “OFF” Button (Push)

Manual “ON” Button (Push)

Manual Charge Handle

Optional Operation Counter

Padlockable Levering Device AccessDoor for Drawout Breaker

8

7 Colour Coded-BreakerPosition Indicator

Nameplate

Trip Unit Test Port

Trip Unit Cover with TwoMounting Screws (MountingScrews will Accept CustomerSupplied Lead Security Meter Seals

10

9

11

12

13

14

15

1 2

3

4

9

5

7

1 2

3

4

9

10

1113

14

15

OPEN

PUSH OFF

DISCHARGED

PUSH ON

CLOSED

CHARGED



PG01301002E

Main Contact SystemSingle Contact FingerThe performance characteristics ofthe Magnum air circuit breaker areprimarily attributed to the contactdesign and its movement. A singlecontact finger is the focal point of themoving contact. This single contactperforms both the main and arcingcontact functions on different partsof the same finger.

A complete movable contact assemblyis merely a combination of a numberof single contact fingers. The exactnumber of contact fingers requireddepends upon the frame size andinterrupting rating of the circuitbreaker.

heel to toe and toe to heel. When thecircuit breaker is closed, the “Heel”(main contact portion) is in contactwith the stationary contact and carryingcurrent. At the same time, the “Toe”(arcing contact portion) is separatedfrom the stationary arcing contact. A compact “C Loop” current path per-mits electromagnetic forces, primarilyproduced as a result of a fault current,to supplement the closing contactforces provided by the operatingmechanism. This helps to accomplishtwo important things:

Operating mechanism does nothave to be as large or heavy

Higher short time ratings (withstand)are achievable

The braided connectors (flexible shunts)used to attach each contact finger serveseveral important purposes:

Eliminate bolted joints reducinghot spots

Reduce required mounting spacefor primary contacts

Allow contact finger motion for“Heel - Toe” rocking

Heel-Toe ActionThe “Heel-Toe” movement of thecontact fingers is a critical factor inthe efficiency of the Magnum maincontact system. The main contactportion can be viewed as the “Heel”and the arcing portion the “Toe.” Itsmovement is similar to the rocking ofa foot forward and backward from

Graphic of Single Magnum Contact Finger Magnum Standard Frame (12 Finger) Contact Assembly

DualFlexible

Connections

MovingMainContact

Conductive Pad(Heel)

MovingArcing

ContactArea(Toe)

PivotPoint

ContactFinger

“Heel”(Main Contact)

“Toe”(Arcing Contact)


Integral Arc RunnerThe integral arc runner serves a dualpurpose:

Functions as circuit breaker’ fixedarcing contact

Functions as a critical part of thearc chute

contact fingers to a narrow, side-to-side ledge inside the arc chamber.When the contacts are in good condi-tion, the narrow ledge is covered bythe back end of the contacts and notvisible. When the narrow ledgebecomes visible with the primarycontacts closed, contact replacementis indicated.

Contact Wear Indicator A contact wear indicator provided foreach primary contact structure permitstheir condition to be determined.This is accomplished by viewing the contacts while in the closedposition only.

The contact wear indicator is the relative position of the individual


PG01301002E

May 2003

Contact Wear Indication

Magnum Arc Running System (Crosssectional View) Integral Arc Runner Viewed from Top of Circuit Breaker

IntegralArc Runner

Contact Wear Indicator - ContactsClosed and in Good Condition

Contact WearInspection Area

(Ledge Now BecomingVisible Under

Contacts)

Contact Wear Indicator - Contacts Closed and Wear is Indicated



(Ledge Not VisibleUnder Contacts)

Side-to-SideLedge

Side-to-SideLedge

yyyyyyyyy

y

yyyyyyyyyyyy

yyyy

yyyyyyyy

yyy

yy

y

xxxxxxxx

xxxxxxxxxx xx

IntegralArc Runner

Top ArcPlate

CurrentFlow

CurrentFlow



PG01301002E

Arc ChambersArc chambers, one per pole, are usedto insulate and isolate each pole fromone another, from the rest of the circuitbreaker, and from operating personnel.

Arc ChuteEnclosed within each arc chamber isan arc chute which mounts over eachset of primary contacts. AlternatingV-shaped arc chute plates effectivelyattract the arc and interrupt it. Eacharc chute has a baffled cover toassist with the speed and efficiencyof the interruption.

Partial Top Rear View Breaker (One Arc Chute Removed) Arc Chute (Bottom View)

Top Arc Platefor

Arcing Contact

Baffled Cover

Arc Chamber

Alternating“V” Shaped

Plates


Manual OperationOn manually operated circuit breakers,the closing spring is charged manually.This is accomplished through the useof the front mounted spring-chargehandle. It takes from 5 to 7 downwardstrokes on the handle to complete thecharging process.

Standard manually operated circuitbreakers are closed and opened byhand using the front mountedManual “ON” and Manual “OFF”buttons respectively. Access to thesebuttons can be limited by the use ofan optional, padlockable cover.Complete access to the “ON” buttoncan be prevented with an optionalprevent close cover. Spring and primary contact status indicator windows are located just above thepushbuttons.

Optional electrically operated devicesare available to automatically closeor trip open manually operated circuitbreakers, and are field installable.

An optional motor operator is usedto charge the closing spring automat-ically. It can be field installed in amanually operated circuit breaker.Manual circuit breakers are pre-wiredfor this addition.

Electrical Operation The closing spring is charged auto-matically by the optional motor operator. It can also be manuallycharged.

Manual “ON” and Manual “OFF”buttons are also provided asdescribed under manual operation.

Through the use of a mechanicalanti-pump feature, an open circuitbreaker only accepts one attempt toreclose even if the close commandcontinues, preventing motor operatorburnout.

A standard circuit breaker with electrical operation also has optionalelectrically operated devices availableto automatically close or trip openthe circuit breaker.


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May 2003

Magnum Circuit Breaker Being Manually Charged

Motor Operator Installed

Motor Operator



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Breaker Secondary Connectors(Black)Magnum secondary connectors pro-vide reliable low impedance connec-tions for up to 60 terminal points ofbreaker control wiring. The sec-ondary connectors are black in colorand consist of 2 blocks, each with 30terminal points. The terminalsreceive plug-in type pin and socketwire terminals. Terminal points havededicated locations to receive thebreaker accessory devices and tofacilitate standardized automatedtesting of the control wiring andaccessories during breaker manufac-turing. Labels are provided on theblocks to assist the customer in ter-minal point identification and use.

The dedicated secondary connectorsmake it easy to add accessories (likeshunt trips, spring release devices,etc.) to the breaker at the point of usewith field option kits. Wiring removalfrom breaker secondary connector iseasily accomplished using an extrac-tion tool (AMP part number 305183).

Labels LegendOTS Overcurrent Trip SwitchUVR Undervoltage ReleaseATR Automatic Trip Relay

(520M, 520MC and 1150 Trip Units Only)

INCOM PowerNetCommunications Network

A BUS (Future Use)A/S Auxiliary Contacts

NEUTRAL Neutral Sensor InputGF SGND Source Earth Input

ZONE Zone InterlockingST Shunt TripSR Spring Release

MOTOR Charging MotorLCS Latch Check Switch

Secondary Connector Labels

Top View Secondary ConnectorsCharged

Mounted Secondary Terminal Blocks

Secondary Wiring Removal Tool

Secondary Terminals and Terminal Wires

OpenhingedCoversClosed Hinged

Covers withTesting Holes

Secondary Terminal Blocks(White)White secondary terminal blocks canbe provided mounted at the top frontof the breaker for customer use. The6-point terminal blocks have hingedIP20 finger-proof covers and aredesigned to terminate various cus-tomer wire terminals including ringtype terminals. Up to 72 terminalblock points can be accommodatedfor Standard and Double framebreakers. Up to 48 terminal blockpoints can be accommodated forNarrow Frame breakers.

Wire kits and terminal block kits areavailable for use by the panel assem-bler to custom configure the blackbreaker secondary connectors to thewhite terminal blocks. As an option,factory pre-wired cassettes are avail-able for drawout circuit breakers.


Digitrip RMSTrip Unit SummaryMagnum circuit breakers can use anyone of a family of microprocessor-based, true rms sensing Digitrip RMSelectronic trip units:

Digitrip RMS 220 Digitrip RMS 520i Digitrip RMS 520Mi Digitrip RMS 520MCi Digitrip RMS 1150i

The trip units themselves are selfpowered; no external power isrequired to operate the portectivesystems. Current signal levels andthe control power are derived fromintegrally mounted torroidal woundcurrent sensors. The use of torroidalwound sensors reduces magnetizingcurrents, resulting in improvedmetered value accuracy over a broadrange of sensor ratings.

Common FeaturesAll trip units have a green light emit-ting diode (LED), labeled Status,which blinks approximately onceeach second to indicate that the tripunit is operating normally. Thissame Status LED will blink at a fasterrate if the trip unit is in a pick-up oroverload condition.

Trip units are interchangeable in thefield, except for Model 520MC andModel 1150. Contact Cutler-Hammerfor interchangeability details.

A functional local test of a major portion of every trip unit’s electroniccircuitry and the circuit breaker’smechanical tripping action can beverified through the trip unit’s testreceptacle. Every test receptacle issupplied with a test receptacle cover.This is accomplished using a DigitripTest Kit which provides a secondaryinjection test. A small hand heldfunctional Test Kit can also be usedto check circuitry and mechanicaltripping functions. In addition, themodel 1150 trip unit has an integraltesting system.

Rating PlugsAll Magnum circuit breaker trip unitsuse a fixed type rating plug. Ratingplugs are available in ampere ratingsof 200 through 6300 amperes. Thecurrent rating of the rating plug must match the current rating of theintegrally mounted current sensors.Therefore, the continuous currentrating of the circuit breaker cannotbe changed by only changing the rating plug.

The rating plug performs a numberof functions:

It tells the trip unit what the ratingis of the current sensors. A labelon the rating plug clearly statesthat the rating plug and currentsensors must have the same rating.

It determines the maximum instan-taneous setting which is a functionof the current sensor rating.

Lifting the rating plug lid will exposea small battery which supplies powerfor the trip unit’s cause of trip LEDs.

If the rating plug is removed fromthe trip unit, the circuit breaker willopen (trip) if it is carrying current.The rating plug should always besecured in position when the circuitbreaker is in use.

All trip unit models, except for model220, have red LEDs on the face of thetrip unit to indicate the cause for anautomatic trip operation, for exampleearth fault, overload or short circuit.They flash red to make the indication.A battery in the trip unit maintainsthe trip indication until theReset/Battery Test button is pushed.The battery is satisfactory if its LEDlights green when the Battery Checkbutton is pushed.

A clear, tamper-proof, plexiglasscover sits on the front of the circuitbreaker over the trip unit. This coverallows the settings to be viewed butnot changed, except by authorizedpersonnel. The cover is held in placeby two cover screws. Security isinsured by the insertion of a standardmeter seal through the holes in bothof the cover retention screws.

20 Trip Units and Communications

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May 2003

Magnum Hand Held Tester

Rating Plug Installed in Digitrip 1150


21Trip Units and CommunicationsMay 2003

PG01301002E

Digitrip 220 ①The Digitrip 220 Trip Unit isdesigned to provide basic overcurrentprotection with maximum economy.The Model 220 is available onNarrow and Standard FrameMagnum Circuit Breakers up to 3200amperes. Product features include:

LI Protection Option Unit Status LED (Green)

Indicator Microprocessor-Based True

RMS Sensing Long Delay Pick-up Setting

fixed at In Long Delay Time Setting fixed

at 10 seconds at 6xIn Long Time (Thermal) Memory

Trip Overtemperature Trip when

temperature exceeds 85°C Instantaneous Pick-up

adjustable from 2x to 10x In and M1

Neutral Protection Test Port with cover to receive

Hand Held Tester① Note:

The Digitrip 220+ is coming soon.The Digitrip 220+ will replace theDigitrip 220 Trip Unit some time inlate 2003. The Digitrip 220+ Trip Unitwill have the following featureswhen it is phased into production:

The Long Delay Pick-upSetting will be changed toadjustable from 0.4 to 1.0 Ir

The Long Delay Tiime Settingwill be changed to adjust-able from 2 to 24 seconds at 6 x Ir

LED (Red) Trip Indicators willbe added for Long Delay andInstantaneous Trip Functions

Battery Included to PowerCause of Trip LEDs

Reset/Battery Test Pushbutton Contact Cutler-Hammer for the futureavailability of the Digitrip 220+ TripUnit.


Digitrip 520 and 520iThe Digitrip 520 Trip Unit is a versatile trip unit with added featuresdesigned to provide increased flexi-bility in overcurrent protection andcoordination. The Model 520 isavailable on all Magnum CircuitBreakers. Product features include:

LSI and LSIG ProtectionOptions with adjustableInstantaneous Off Setting

Unit Status LED (Green) Microprocessor-Based True

RMS Sensing Long Delay Pick-up Setting

adjustable from 0.4 to 1.0 Ir Long Delay Time Setting

adjustable from 2 to 24 seconds at 6 x Ir

Long Time (Thermal) MemoryTrip

Overtemperature Trip whentemperature exceeds 85°C

Short Delay Pick-up settingadjustable from 2 to 10 Ir and M1

Short Delay Time Settingadjustable flat response from 0.1to 0.5 seconds and I2t Response at0.1, 0.3 and 0.5 seconds

Adjustable Instantaneous Pick-up Settings, Off, 2x to 10x In andM1

Earth Pick-up Setting adjustablefrom .25 to 1.0 x In

Neutral Protection (Model LSITrip Unit)

Earth Time Setting adjustableflat response from 0.1 to 0.5 secondsand I2t Response at 0.1, 0.3 and 0.5seconds

Zone Interlocking of ShortTime and Earth Fault TimeDelay Functions

Test Port with Cover to receiveHand Held Tester

LED (Red) Trip Indicators forLong Delay, Short Delay,Instantaneous and Ground FaultTrip Functions

Battery Included to PowerLEDs

Reset/Battery Test Pushbutton


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May 2003



PG01301002E

Digitrip 520M and 520MiThe Digitrip 520M Trip Unitincludes all the features of the 520Trip Unit with the following additions:

LSI,LSIG and LSIA ProtectionOptions with adjustableInstantaneous Off Setting

4 Digit LCD Display Step Pushbutton to Scroll

through the LCD Display Data: PH1 Phase 1 (A) Current PH2 Phase 2 (B) Current PH3 Phase 3 (C) Current PH4 Neutral Current PH5 Earth Current HI Highest Phase Current OL Overload Condition HELP Trip Unit Error Magnitude of Trip Current

Optional Earth Alarm/PowerSupply Module: Powers the trip unit’s 4Digit LCD Display through thebreaker secondary contactswith a customer supplied voltage source:

24-48 Vdc 110 Vac 220 Vac

Provides a earth fault alarmcontact (when used with LSIA) Provides a earth fault tripcontact (when used with LSIG) Provides a High Load Alarmcontact (when used with LSI) Alarm Contact rating (withresistive load):

0.5 Amp at 220 Vac 1.0 Amp at 110 Vac 1.0 Amp at 24-48 Vdc

High Load Indicator LED (RED)(LSI Trip Units)

Note: If an Earth Alarm/PowerSupply Module is not provided, the 4Digit LCD Display will power upwhen the 3 phase currents reachapproximately 20% of the sensor rat-ing or 30% of a single phase current.


Digitrip 520MC and 520MCiThe Digitrip 520MC Trip Unitincludes all the features of the 520MTrip Unit, but also includes ampere-based communications capability.The 520MC Trip Unit has the followingadditions:

Communications Functionsand Data: Transmit LED (Red) indicateswhen trip unit is transmittingINCOM signal Device Settable INCOMAddress from 001 to 999 hexa-decimal Bkr Status (Open, Closed,Tripped) PH1 Phase 1 (A) Current PH2 Phase 2 (B) Current PH3 Phase 3 (C) Current PH4 Neutral Current PH5 Earth Current LDPU Long Delay Pick-up SDT Short Delay Trip INST Instantaneous Trip GNDT Earth Fault Trip PLUG Plug Trip MCR Making CurrentRelease OTEMP Over Temperature HL High Load (LSI only)

Earth Alarm/Power SupplyModule is Supplied asStandard to power trip unitcommunications functions

The 520MC is designed for applicationswhere communication capability isspecified with maximum economy.The 520MC Trip Unit communicatescurrent-based information, but doesnot have the voltage, power, harmonicor remote control capability of theDigitrip 1150 Trip Unit. The 520MC is ideally suited for application onfeeder breakers and can be used intandem with mains and tie breakersthat are equipped with the full capability of the 1150 Trip Unit.

Note: Digitrip 520MC requiresPowerNet Version 3.2 or higher ifPowerNet Software is used.


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May 2003



PG01301002E

Digitrip 520M/MC

Control VoltageRemote

GroundFault Trip

GroundFault Alarm

Ground Alarm / Power Supply Module

G-A

larm

K2-

1

K2-

3

K2-

6

Out

pu

t +

Ou

tput

-

J3-1

J3-2

J3-3

J4-4

J4-3

J4-1

A-1

0

A-1

1

A1

4

A-1

5

G-A

LM 1

G-A

LM 2

AT

R V

olt.

AT

R C

OM

J4-2

Contact Rating (resistive load)AC 0.5A @ 230VACAC 1A @ 120VACDC 1A @ 48VDC

Verify input voltage rating before energizing circuit.

When used in conjunction with a T. U. Cat. 5MWLSIG, 5MLSIG, 5CWLSIG or 5CLSIG, will indicate GF trip.

When used in conjunction with T.U. Cat. 5MLSIA or5CLSIA, will indicate GF alarm.

When used in conjunction with a Trip Unit having LSI protection, will indicate High Load alarm.

120 VAC

230 VAC

24-48 VDC

7802C83G01

7802C83G02

7802C82G01

StyleNumber

AvailableInput Voltages

2

2

5

1

3

4

Earth Alarm/Power Supply Module for520M or 520MC Trip Units

Wiring Diagram for 520M Family Models withEarth Alarm/Power Supply Module

Earth Earth⑤

Earth

Trip Unit Cat 5MLSIwill indicate high load alarm.


Digitrip 1150+ and 1150i+

The Digitrip 1150 + is anenhanced version of the 1150trip unit that provides comprehensiveprotection, metering, communications,relay and remote control capabilities.For a complete listing of the Digitrip1150+ Trip Unit capabilities, refer toits Instruction Leaflet. The followingis a brief first level summary of the1150+ product features:

LSI,LSIG and LSIA Protection 24 Character Digital LED

Display Unit Status LED (Green)

Indicator Programmable Protective

Settings: I2T and I4T Curves IEC A Curve - Normal Inverse IEC B Curve - Very Inverse IEC C Curve - ExtremelyInverse Neutral Protection(Model LSI Trip Unit) Instantaneous Off Setting Earth Fault Trip or Alarm Undervoltage andOvervoltage Protection (Trip orAlarm) Underfrequency andOverfrequency Protection (Tripor Alarm) Reverse Power (Trip) Voltage UnbalanceProtection (Trip or Alarm) Phase Rotation (Alarm)

Long Time (Thermal) MemoryTrip

Overtemperature Trip when thetemperature exceeds 85°C

View Selection Touch Pads forLocal Metering Display: Current (1% Accuracy, ThreePhase, Neutral and Earth Voltage L-L (1% Accuracy) Frequency (± 0.05 Hz) Power & Energy (2% Accuracy)

Kilowatts (kW) Kilowatt Hours (kWH) Kilovoltamperes (kVAR) kVA Hours Fixed 15 Minute Demand for kW, kVAR & kVA Sliding 15 Minute Demand for kW or kVA

Test Port with cover to receiveDigitrip Hand Held Tester Power Receptacle for AuxiliaryPower Module to power up tripunit when breaker is in theDisconnect or Remove Position Internal Self-Test Accessory Bus for additionalprogrammable contacts Battery Included to PowerLEDs Reset/Battery TestPushbutton

Power Factor Including Min and Max

Power Quality Monitoring,Trip and Alarm: Waveform Capture % Total Harmonic Distortion Kilovoltamperes (kVAR)

Programmable AlarmContacts

Breaker Control (Remote Open& Close via Communications) Operations Counter


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May 2003



PG01301002E

Communications Functionsand Data:Communications information andfunctions are comprehensive.Refer to the 1150 Trip UnitInstruction Leaflet I.L. 70C1036H03for complete details and capabili-ties.

Power Relay ModuleThe Power Relay Module is providedwith the 1150 Trip Unit to performthe following features:

Power Supply to power the tripunit’s 24 Character LED display andcommunications functions. Thepower relay module requires anexternal customer supplied voltagesource that is wired through thebreaker secondary contacts. Thesource voltage is selected at orderentry and includes the following voltage options with ± 10% toleranceand 10VA burden.

24-48 Vdc 120 Vac 240 Vac

Programmable Relay Contactsvia the Digitrip 1150 Trip Unit tripand alarm programming menus:

Contact A: Alarming andTripping Relay for use with the tripunit protective functions. Contact B: Block close relayprohibits the remote closing of thecircuit breaker Contact C: This latch relay willhold status upon loss of auxiliarypower Alarm Contact Ratings (resistive load):

0.5 Amp at 230 Vac 1.0 Amp at 120 Vac 1.0 Amp at 24-48 Vdc

Potential Transformer (PT)ModuleThe PT module provides system linevoltage information to the Digitrip1150 Trip Unit. It consists of a 3-phase,3-wire input and 3-wire output stepdown transformer with a wye to wyehookup. A white disconnecting plugis provided to disconnect the PTModule circuit from the line voltageduring dielectric testing.

The PT Module primary input voltageconnection is selected when thebreaker is ordered to accommodatenormal or reverse feed application.PT Module line-side pr load-side voltage connections are made viahard wire termination to the breakerupper or lower conductors.

The normal convention is that thebreaker line side is the upper con-ductors, with power flowing throughthe breaker from top to bottom. Inreverse feed applications, the bottomconductors are the line side withpower flowing through the breakerfrom bottom to top. In this case thetrip unit will indicate REVERSEPOWER, but the reading can bemade an absolute value by installinga jumper from B3 to B7 on the breaker secondary contacts.

Power Relay Module for 1150 Trip Unit

PT Module with Dielectric Disconnect Plug



PG01301002E

May 2003

Power Relay Module Connection to 1150 Trip Unit

SR

LL

110

220

230 VAC110 VAC



PG01301002E

Accessory BusThe accessory bus feature on theDigitrip 1150 Trip Unit permits theapplication of additional discrete programmable relay contacts by theuse of one or more Digital RelayModules. The accessory bus isbrought out from the trip unit to secondary terminals A17 and A18 forexternal connections to the DigitalRelay Modules via twisted pair communications cable.

Digital Relay ModuleThe Digital Relay Module is mountedby DIN Rail, separate from the circuitbreaker. Up to 4 Digital RelayModules (addresses 001 to 004) canbe applied per circuit breaker. EachDigital Relay Module has has relayswith form C contacts rated at 10 ampsmaximum at 250 Vdc. A control voltagesource of 120 Vac ±20% or 38-125Vdc is required to power each unit.

ProgrammingThe Digitrip 1150 Trip Unit can beprogrammed to drive the DigitalRelay Module relay contacts for anycombination of the following:

Auxiliary Switch Bell Alarm Long Delay Trip Short Delay Trip Instantaneous Trip Earth Fault Trip Earth Fault Alarm High Load Alarm Deadman Watchdog

INCOM Network with Remote Master Computer BIM II

1

1

2

3

3

1

2

3

0 0 1 0 0 2

Cut-off Shield or connect tounused customer terminal -- Do not Ground.

Twisted Pair.No. 18 AWG.

BreakerInterfaceMonitor(BIM ) ΙΙ

Typical MagnumCircuit Breakerwith Digitrip Trip Unit

3 Digit INCOM Address

Baud Rate 1200 or 9600

See View A

Typical IBM CompatibleComputer

View A

(Y)

(BL)

Refer to Master Circuit Breaker Connection Diagrams in Appendix C.

Modular telephone connector, Type RJ11, supplied by user.

Ground shielding at computer BIM as shown. Where devicesare daisy-chained, interconnect shielding, but do not ground the connection.

100 ohm ½ watt carbon resistor required at last breaker. See T.D. 17-513.

See Appendix D-11 for programming INCOM function.

AEM is compatible with Digitrip 1150 with AEM firmware version 7.1and theDigitrip 1150 set in the DT 910 COMM mode. (See page D-11)

Breaker Interface Module (BIM ) Version 3.12 is compatible with Digitrip 1150Cat # 1****. BIM version 3.13 or greater is compatible with Digitrip 1150Cat # 1**** and Cat # 11****.

ΙΙ

ΙΙ ΙΙ

ΙΙΙΙ1

1P

NOTICE

100 OHM 1/2W terminating resistor required on network even if network is unused

Earth

Earthearth

BIM II as



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May 2003

Digital Relay Accessory Module

110



PG01301002E

MODBUS TRANSLATOR Wiring

110



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May 2003

Trip Unit Summary Table

In = Rating Plug and Sensor Rating

Ir = Long Delay Pickup Setting

① Test set for secondary injection

➁ Model 220+ will be available in the second half of 2003. Long Delay Pickup will be adjustable 0.4-1.0 x (In), Long Delay time will be adjustable 2-24 seconds. Cause of Trip Indicators with Battery Back-upwill be added. Contact Cutler-Hammer for availability.

③ Model 1150i+ will be available in the second half of 2003. Over and Undervoltage Alarm or Trip, Over and Underfrequency Alarm or Trip, Voltage Unbalance Alarm or Trip, Reverse Power Trip, and PhaseRotation Alarm will be added. Contact Cutler-Hammer for availability.

TRIP UNIT TYPE DIGITRIP 220 ➁ DIGITRIP 520i DIGITRIP 520Mi DIGITRIP 520MCi DIGITRIP 1150i ③

Ampere Range 200A-3200A 200A-6300A 200A-6300A 200A-6300A 200A-6300A

Interrupting Rating at 690V 40 through 100kA 40 through 100kA 40 through 100kA 40 through 100kA 40 through 100kA

rms Sensing Yes Yes Yes Yes Yes

PROTECTION AND COORDINATION

Protection Ordering Options LI LSI, LSIG LSI, LSIG, LSIA LSI, LSIG, LSIA LSI, LSIG, LSIA

Fixed Rate Plug (In) Yes Yes Yes Yes Yes

Overtemperature Trip Yes Yes Yes Yes Yes

Long Long Delay Pickup 1.0 x (In) Fixed ➁ 0.4-1.0 x (In) 0.4-1.0 x (In) 0.4-1.0 x (In) 0.4-1.0 x (In)

Delay Long Delay Time I2t at 6 x Ir 10 seconds ➁ 2-24 Seconds 2-24 Seconds 2-24 Seconds 2-24 Seconds

Protection Long Delay Time I4t No No No No 1-5 Seconds

(L) Long Delay Thermal Memory Yes Yes Yes Yes Yes

High Load Alarm No No No No 0.5 - 1.0 x (Ir)Short Short Delay Pickup No 200-1000% x (Ir) and M1 200-1000% x (Ir) and M1 200-1000% x (Ir) and M1 200-1000% x (Ir) and M1Delay Short Delay Time I2t at 8 x Ir No 100-500 ms 100-500 ms 100-500 ms 100-500 ms

Protection Short Delay Time Flat No 100-500 ms 100-500 ms 100-500 ms 100-500 ms

(S) Short Delay Time ZSI No Yes Yes Yes Yes

Instantaneous Instantaneous Pickup 200-1000% x (In) 200-1000% x (In) and M1 200-1000% x (In) and M1 200-1000% x (In) and M1 200-1000% x (In) and M1Protection Making Current Release Yes Yes Yes Yes Yes

(I) Off Position No Yes Yes Yes Yes

Earth Earth Fault Alarm No No Yes Yes Yes

Fault Earth Fault Pickup No 25-100% x (In) 25-100% x (In) 25-100% x (In) 24-100% x (In)

Protection Earth Fault Delay I2t at .625 x ln No 100-500 ms 100-500 ms 100-500 ms 100-500 ms

(G) Earth Fault Delay Flat No 100-500 ms 100-500 ms 100-500 ms 100-500 ms

Earth Fault ZSI No Yes Yes Yes YesEarth Fault Thermal Memory No Yes Yes Yes Yes

Neutral Protection (N) Yes Model LSI Only Model LSI Only Model LSI Only Model LSI OnlySYSTEM DIAGNOSTICS

Cause of Trip LEDs No ➁ Yes Yes Yes Yes

Magnitude of Trip Information No No No Yes Yes

Remote Signal Contacts No No Yes Yes Yes

Programmable Contacts No No No No Yes

SYSTEM MONITORING

Digital Display No No 4 Char. LCD 4 Char. LCD 24 Char. LED

Current (%) Full Scale Sensor No No Yes Yes Yes +/- 1%

Voltage (%) L to L No No No No Yes

Power and Energy (%) No No No No Yes

Apparent Power kVA and Demand No No No No Yes

Reactive Power kVAR No No No No Yes

Power Factor No No No No Yes

Crest Factor No No No No Yes

Power Quality - Harmonics No No No No Yes

% THD No No No No Yes

SYSTEM COMMUNICATIONS

Type No No No INCOM/PowerNet INCOM/PowerNet/Trip Link

Power Supply N/A N/A PRM in Breaker PRM in Breaker PRM in BreakerADDITIONAL FEATURES

Trip Log (3 Events) No No No No Yes

Electronic Operations Counter No No No No Yes

Testing Method ① Test Set Test Set Test Set Test Set Integral and Test Set

Waveform Capture No No No No Yes



PG01301002E

Current SensorToroidally wound current sensors are installed at the rear of the circuitbreaker on the lower horizontal ter-minals. They are available in ampereratings of 200 through 6300 amperes,and must match the current rating of the installed rating plug.

The sensors produce an output currentproportional to the load current.Under preselected conditions of cur-rent magnitude and time, the sensorsfurnish the trip unit with a signal andthe energy required to open (trip) thecircuit breaker.

The current rating of the installedsensors can be easily viewed fromthe rear of the circuit breakerthrough small viewing windows.The viewing windows are part of thesensor cover plate which is removedto change the sensors.

Neutral current sensors are availablefor customer installation. The addi-tional sensor is not supplied with thecircuit breaker and must be orderedseparately. They are wired to the tripunit through the secondary contactson the circuit breaker.

Mechanical Trip Flag Pop-OutIndicatorThe mechanical trip flag pop-outindicator is an overcurrent indicationfeature that can be supplied as anoption on Magnum Circuit Breakerswith integral trip units. This deviceis located just above the trip unit onthe breaker’s front faceplate. In theevent the trip unit trips the breakeron an overcurrent condition, the redtrip flag releases and pops out togive local visual indication. This trip indication is in addition to anyLED trip indication provided by thetrip unit.

The red flag can be reset by manuallypushing it back in. The circuit breakercan be re-closed, even if the flag isnot reset. An optional OvercurrentTrip Switch (OTS) is available in theevent that an electrical lock-out isrequired on an overcurrent trip condition.

Making Current ReleaseThe Making Current Release (MCR) isa standard safety feature providedon all Magnum Circuit Breakers thatare equipped with integral trip units.The MCR provides an instantaneoustrip when closing on a fault currentwhich exceeds a specified magnitude.The MCR is non-adjustable and preset

Wiring Plug

ToroidalCurrent Sensor

Sensor RatingViewingWindow

CurrentSensorCover

SensorRating

Rating Plugs and Matching Sensors

Current Sensor Cover in Place Over Sensors Current Sensor Cover and One Sensor Removed

Neutral Sensor (unmounted)

Ratings (Amperes)

200250300400600630

80010001200125016002000

250030003200400050006300

Note: Refer to Tables 3.4, 3.5 and 3.6 in thesection entitled Circuit Breaker CatalogNumber for the availability of sensor and rat-ing plug ratings for specific circuit breakerframe sizes.


to trip the breaker when the peakinstantaneous current exceeds 25 xIn (In is established by the breaker’scurrent sensors and rating plug).

The MCR is enabled for only the firsttwo cycles following the circuitbreaker closing operation. When theMCR trips the breaker, the red tripflag of the mechanical indicator willpop out and the red InstantaneousLED of the trip unit will flash if thebreaker is so equipped.

Bell Alarm/Overcurrent TripSwitch (OTS)The Bell Alarm/Overcurrent TripSwitch (OTS) is an overcurrent indi-cation feature that can be supplied as an option on Magnum CircuitBreakers with integral trip units. The OTS is physically mounted onthe Mechanical Trip Flag Pop-outIndicator. The OTS Switch includes 2 Form C contacts that are wired tothe breaker secondary terminals asshown in the Magnum breaker connection diagram. These contactsare available for external wiring toprovide remote trip indication or forelectrical lock-out of a circuit breakeras required.

In the event the trip unit trips thebreaker on an overcurrent condition,the red flag of the Mechanical TripFlag Pop-ot Indicator releases andpops out and the OTS contactschange state. The OTS Switch canbe reset by manually pushing in thered trip flag. When the trip flag isreset, the OTS Switch contacts returnto their normal state.

High Instantaneous TripMagnum Circuit Breakers that arerated 100kA and manufactured in theStandard Frame with 800 to 3200ampere continuous current ratings(MWIC08 to MWIC32) are equippedwith a high instantaneous trip. Thisinstantaneous trip system consists ofsmall air core sensors (one perphase) which produce a signal andtransmit it back to the trip unit.When the fault current approachesthe 85kA withstand rating of the cir-cuit breaker,

to be closed into repeated overloadconditions, the breaker will trip insuccessively shorter times to allowfor the cooling of the load circuit.When the overload condition returnsto normal, the LTM function beginsto slowly reset and will fully resetback to the normal Long Delay Time setting after about 10 minutes,provided that another overload is notexperienced.

In some applications, for examplefire pump, electric welders or duringprimary injection current testing, itmay be desirable to defeat the LTM.This can be accomplished at the tripunit by moving a jumper locatedinside the cavity behind the test portcover located at the front of the tripunit to the Inactive position. TheLTM can be reactivated by returningthe jumper to the Active position.

the trip unit trips the breaker instan-taneously. This allows the breaker tobe applied on a power distributionsystem with a 100kA available faultcurrent while main-taining selectivityup to 85kA.

Long Time Memory (LTM)Long Time Memory (ThermalMemory) is a standard feature onMagnum Circuit Breakers suppliedwith integral trip units. The thermalmemory function provides overtem-perature protection on load circuitsagainst the effects of repeated over-load conditions. If a breaker isclosed soon after an overload tripand the current again exceeds theLong Delay Setting, the LTM reducesthe time to trip to allow for the factthat the load circuit temperature ishigher than normal due to the previousoverload condition. If the breakercontinues


PG01301002E

May 2003

Digitrip RMS 1150 Programmable Trip Unit Installed

Test Receptacle

(withCover)

RatingPlug

AuxiliaryPowerModule

Port

In = 800A

Trip FlagPop-OutIndicator



PG01301002E

Over-Temperature TripMagnum Circuit Breakers equippedwith integral trip units have an over-temperature trip function provided asa standard feature. The over-temper-ature trip is designed to trip thebreaker when the internal tempera-ture of the trip unit exceeds 85°C.This is the approximate manufactur-er’s published maximum tempera-ture rating for the trip unit electroniccomponents. An 85°C temperatureinside the trip unit indicates thatthere are much higher temperaturesand potentially significant heatingproblems elsewhere on the circuitbreaker.

When the over-temperature functiontrips the breaker, the red trip flag ofthe mechanical indicator will pop-outand the red Long Time Delay LED ofthe trip unit will flash is the breakeris so equipped.

Ground Fault Provisions andProtective SchemesAs a standard feature, MagnumCircuit Breakers are internally wiredwith provisions for ground fault protection. However, ground faultprotection is provided only if thebreaker is equipped with a trip unitwith optional LSIG protection.

Ground fault protection can be easilyadded to breakers not originallyequipped with a ground fault tripunit. For example, an LSI trip unitcan simply be changed out with alike model trip unit that has LSIG protection. Modifications to the circuitbreaker internal wiring are generallynot required as long as the trip unitchangeout is with a like model trip unit.

To provide for maximum applicationflexibility, breaker ground fault provi-sions are wired out to the breakersecondary terminals for external use.The secondary terminals can be easily configured to accommodatethe most common ground faultschemes, including:

NOTE: For detailed wiring diagrams that describe allground fault sensing optionsand wiring connections, refer to

the Trip Unit Instruction Leaflet.

Multiple Source/Multiple GroundMultiple Source/Multiple Groundsensing schemes are also possibleon systems with multiple sensors.

Zone InterlockingZone Selective Interlocking is a standard feature provided on

Magnum Circuit Breakers that aresupplied with Digitrip 520i or highertrip units. The trip unit Short Timeand Ground Fault Time Delay ZoneInterlock function is wired out tobreaker secondary terminals B8 andB9 for customer use.

The zone interlock function providesfor hard-wired selective circuit breakercoordination in the power distributionsystem. When employed, breakersecondary terminals B8 and B9 areconnected to establish zones ofdownstream and upstream breakersusing 3 wires: Zin, Zout, and a commonwire to establish the zone.

NOTE: For detailed wiring dia-grams that describe zone selectiveinterlocking schemes and wiringconnections, refer to the tripunit instruction leaflet.

In the event that a fault current onthe system exceeds the trip unitShort Time or Ground Fault pick-upsettings or the Short Delay Setting2xIr is exceeded, the breaker nearestto the fault trips instantaneously. Atthe same time the trip unit sends alogic signal to the connectedupstream trip unit to restrain it fromtripping immediately and follow itsprotective delay settings. Coordinationis maintained, the breaker closest tothe fault trips first and power is onlyselectively disrupted.

NOTE: If zone interlocking is notemployed, it may be defeated by installing a shorting jumperacross breaker secondary termi-nals B8 and B9.

Installing a jumper in this mannerdefeats the zone interlock functionand tells the trip unit to follow its setShort Time and Ground Fault Timeprotective delays. If breaker sec-ondary terminals B8 and B9 are leftas open circuit, the trip unit ShortTime and Ground Fault Time Delayfunctions will trip instantaneously ifthe system fault current exceeds thepick up setting.

Residual SensingResidual sensing is the standard ordefault wiring configurations provided.It is also the most common mode ofground fault sensing used in 3-poleand 4-pole breaker applications. Onecurrent sensor per pole on eachphase conductor is provided internalto the circuit breaker. When 3-polebreakers are applied on 3 phase, 4wire systems, an external sensormatched to the breaker sensor ratiois mounted on the Switchgear neutralbus and wired to the breaker secondarycontacts to connect all sensors in theresidual circuit.

Source Ground SensingSource ground sensing is commonlyfound on 3 pole breakers applied asa main breaker on single-ended radialor on double-ended systems where a mid-point grounding electrode isemployed.

To configure a breaker for sourceground sensing, a shorting jumper isapplied to breaker secondary contactsB6 and B7 to defeat the residualsensing mode. An external currentsensor is mounted directly on thebonding conductor to ground tomeasure the ground current flowingin the grounding electrode conductorand all other grounding conductors.The sensor is then wired to the breakersecondary contacts B4 and B5.

NOTE: The secondary currentrating of the sensors must be 1ampere.

Zero Sequence SensingZero sequence sensing is applied onmain and feeder breakers, and otherbreakers employed in zone interlockingground protection schemes.

To configure a breaker for zerosequence sensing, a shorting jumperis applied to breaker secondary con-tacts B6 and B7 to defeat the residualsensing mode. Zero sequence sensorswith 1000:1 and 100:1 ratios areavailable for mounting in theswitchgear cable compartment. Thesensor internal window dimensionsare 114 x 342 mm (4.5 x 13.5 inches)for accommodating power cables.The zero sequence sensors are wiredto breaker secondary contacts B4and B5.


Fixed Mounted Circuit BreakersMagnum fixed mounted circuitbreakers are commonly applied inspecialty power distribution enclo-sures and switchboards manufac-tured by Low Voltage PowerAssemblers.

The fixed circuit breaker constructionis simple and economic becausethere are no drawout system compo-nents. The breaker bolts directly tothe enclosure main bus, whichallows for efficient current transferunder loaded conditions. Thisimproves thermal management andprovides for the design of compactenclosures with shallow depth.

Full visual and physical access to thecircuit breaker trip unit, controls, andindicators is available through thecompartment front panel. A doorframe and escutcheon kit is availableas an option to provide a finishedtrim to the front panel cutout.Extensive accessorization capabilityof the breaker is retained, includingtrip units, internal accessories, lock-offdevices, and mechanical interlocks.

Primary TerminationsHorizontal pre-drilled terminal padsare provided as a standard featurefor use in terminating the breaker tothe enclosure bus. Optional verticaladapters can be factory installed orare available as field option kits toprovide the capability to terminatethe enclosure bus in the verticalplane. Field option kits are alsoavailable for front connected applications.

If the benefit of front accessible dedicated terminal blocks at the topfront of the breaker is desired, the terminal block mounting bracketincluded in the secondary connectionterminal kit can be used. CatalogNumber MSECBK white terminal blockkits can be purchased and assembledto the mounting bracket. CatalogNumber MSECWR wire kits can bepurchased to connect the white terminal block to the black AMP connector block points.

Mounting FeetMetal mounting feet are provided asa standard feature for use in securelybolting the breaker to the enclosure.

Secondary ConnectionsTwo black 30-pin AMP connectorblocks are located at the top front ofthe breaker to receive up to 60 pointsof external secondary wiring. A secondary connection terminal kit isincluded with each fixed breaker toprovide for several wiring options.

The most economic solution is to terminate external wiring directly tothe black AMP connector blocks.

Catalog Number MWK40 wire bundlekits with 30 wires 40 inches long canbe purchased for this purpose. Thewire bundles can also be self-fabricatedby the enclosure manufacturer, provided the proper AMP terminaland crimping tool are used.

36 Fixed Circuit Breakers

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Closeup of Fixed Circuit Breaker’s Connection Possibilities

Fixed Circuit Breaker (front view)

Optional VerticalAdapter

StandardHorizontalConnection

MountingFoot


37Drawout Circuit BreakersMay 2003

PG01301002E

Drawout Circuit BreakersMagnum drawout circuit breakersare commonly applied in specialtypower distribution enclosures,switchgear and switchboards manu-factured by Low Voltage PanelAssemblers.

The Magnum drawout circuit breakerconstruction is a through-the-doordesign. Full visual and physicalaccess to the trip unit and all breakercontrols and indicators is availablethrough the compartment frontpanel. For maximum safety, circuitbreaker levering can be performedwith the compartment door closed.When the circuit breaker is in theOPEN position, a padlockable accessdoor can be raised to receive the levering device. No special device isrequired. Levering can be accom-plished with a common 10 mm sizesquare drive and rachet. Wheninserted, the levering device holdsthe levering access door open. Aslong as the access door is raisedopen, the breaker is held in the “trip-free” condition. The breaker can belevered to three positions in the cellcompartment. Colour coded positionindicators are provided on the breakerfront panel to provide positive indi-cation of each position:

Green = DISCONNECT

Yellow = TEST

Red = CONNECT.

Secondary Disconnect ContactsThe breaker secondary disconnectingcontacts engage or disconnect withthe cassette secondary contacts asthe breaker is levered into or out ofthe TEST position.

Primary Disconnecting ContactsThe primary disconnecting contacts(finger clusters) engage or disconnectwith the cell compartment bus stabsas the breaker is levered into or outof the CONNECT position.

The primary disconnecting contactsare mounted on the rear of thebreaker so that they can be easilyinspected or replaced. All breakerframes have horizontal primary dis-connects.

Circuit Breaker Being Levered

CONNECT

TEST

DISCONNECT

CONNECT

TEST

DISCONNECT

Rear View Standard Frame Breaker

HorizontalPrimary

Disconnect

Rear View Narrow Frame Breaker

HorizontalPrimary

Disconnect


Drawout CassetteA drawout circuit breaker is used incombination with a fixed drawoutcassette. The cassette provides forall the required fixed drawout featuresas well as fixed primary and secondaryconnections. Mounting locations forcell (TOC) switches, primary safetyshutters and various key interlocksare part of the cassette design.

The cassette has built in horizontalstabs and primary terminals.Optional bolt-on 90 degree adaptersare available to rotate the primaryterminals on the rear of the cassette toa vertical orientation; these can beused on either the line, load or bothprimary connection.

It should be noted that short circuitcurrents create very large electro-mag-netic forces on the bus bars whichmust be adequately supported by theassembly builder. Outline drawingsfor each cassette give minimum dis-tances from the rear of the cassettewherein adequate bus bar supportsmust be provided. The design ofthese supports depends upon the busbar configuration and short circuit rat-ing and is the responsibility of theassembly builder.

38 Drawout Circuit Breakers

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May 2003

Narrow Frame Breaker and Cassette

Rear View

Standard Frame Cassette

The cassette's drawout extensionrails can be padlocked to prevent acircuit breaker from being insertedduring maintenance periods. Inaddition, the cassette includes allrequired safety interlocks which function with the circuit breaker'sinterlock system to insure safe operation.

An arc hood is positioned abovewhere the circuit breaker's arc chuteswill be allowing for zero clearancemounting when vertically stacked inan assembly. Mounting holes areprovided at the rear and in the floorof the cassette for secure mountingin an assembly.


39Phasing on Double-Wide BreakersMay 2003

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Phasing on Double-Wide FrameBreakersMagnum circuit breakers manufac-tured in the double-wide frame havetwo available phasing configurationswhich must be confirmed when thebreaker is ordered.

The phasing convention is determinedfacing the front of the breaker fromleft to right. For 4-pole applications,the neutral is located on the left andis rated 100% of the breaker continuouscurrent rating. The following phasingconfigurations are available:

3-Pole AABBCC4-Pole NNAABBCC

3-Pole ABCABC4-Pole NNABCABC

The type of phasing selecteddepends on how the circuit breakerwill be applied in the enclosure andthe type of Cutler-Hammer powerdistribution enclosure that it will beapplied in.

AABBCC or NNAABBCC Phasing

AABBCC phasing is the conventioncommonly used in IEC Switchboardsusing Magnum Circuit Breakers.

The AABBCC convention is recom-mended for most switchgear assemblermanufacturing their own power distribution enclosures. It is ideal forapplications where the breaker ismounted single high (one breaker ina structure).

ABCABC or NNAABCABCPhasing

ABCABC phasing is available, but notcommon in IEC SwitchgearApplications. Contact Cutler-Hammer for more information.

Magnum Double-Wide Frame Breaker with AABBCC Phasing (front and rear views)


Accessory DevicesA variety of accessory devices areavailable for use with Magnum circuitbreakers. Unless otherwise stated,they are all considered optionaldevices in the sense that they are notprovided as standard on a manuallyoperated circuit breaker. Availableaccessories are identified here anddiscussed in general terms. Formore detailed information and/orinstallation instructions, refer to indi-vidual instruction leaflets dedicatedto the accessories.

Magnum circuit breaker accessoriesare designed to fit all frame sizes.The accessories fall into one of threecategories:

• Plug-in electrical• Internal electrical• Mechanical

Plug-In Electrical Accessories There are four Magnum Plug-In electrical accessories. Three can beviewed for identification by nameand rating through viewing windowslocated in the right front of the circuitbreaker(Figure 1). All four are plug-intype and can be factory installed orfield installed.

The four Plug-In accessories are:

• Shunt Trip (ST)• Spring Release (SR)• Undervoltage Release (UVR)• Auxiliary Switch

Shunt Trip (ST) - The ST (ShuntTrip Device, Figures 2 and 3) is anoptional accessory device that ismounted internal to the circuit break-er. The ST acts to electrically openthe circuit breaker when its trip coilis energized by a rated trip voltagesignal (Table 1) that is appliedthrough the breaker secondary con-tacts, typically by a control switch orother similar device. The ST has adedicated auxiliary switch with con-tacts that change state as the breakeropens, cutting off trip voltage signalto the trip coil.

A second shunt trip (with the sameor different control voltage) can bemounted in the same space as theUndervoltage Release (UVR). Whena second shunt trip is used, one ofthe auxiliary switch stages must beused to provide the trip coil cut offcontact.

40 Accessory Devices

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Operational ① OpeningControl Voltage Range Inrush Power Time Voltages 70-110% Consumption (ms)

24 Vdc

48 Vdc

110-125 Vdc

220-250 Vdc

110-127 Vac

208-240 Vac

17-26 Vdc

34-53 Vdc

77-138 Vdc

154-275 Vdc

77-140 Vac

146-264 Vac

250 W

250 W

450 W

450 W

450 VA

450 VA

35

35

35

35

35

35

① Required for less than 35 ms

Table 1 Shunt Trip Ratings

Figure 1 Through-the-Window Electrical Accessories

Accessory Viewing Windows

Figure 2 Shunt Trip with CutoffSwitch

Figure 3 Shunt Trip Switch Installed


41Accessory DevicesMay 2003

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Spring Release (SR) - The SR(Spring Release Device, Figure 4) isan optional accessory device that ismounted internal to the circuit break-er. The SR acts to electrically closethe circuit breaker when its close coilis energized by a rated close voltagesignal (Table 2) applied through thebreaker secondary contacts, typicallyby a control switch or other similardevice.

The breaker must be ready to closefor the SR to close the circuit breaker.The breaker stored energy springsmust be fully charged and the triplatch must be in the reset (not thetrip) position. If the close voltagesignal is applied before these twoconditions are met, the SR will notclose the circuit breaker. The closevoltage signal must be removed andthen reapplied at a time when thebreaker is ready to close.

• Latch Check Switch Wired ForExternal Use - The LCS can alsobe wired to the breaker secondarycontacts. One Form C contact isprovided for remote indication thatthe breaker is ready to close foruse in breaker external customercontrol wiring.

Undervoltage Release - The under-voltage release is an optional deviceon both manually and electricallyoperated circuit breakers (Figure 5).It opens the circuit breaker when itssupply voltage falls to between 35-60% of rated voltage. If the releaseis not energized to 85% of its supplyvoltage, the circuit breaker cannot be closed electrically or manually(Table 3).

Latch Check Switch (LCS) - TheLCS (Latch Check Switch) is anoptional accessory switch mountedinternal to the circuit breaker thatchanges state when the breaker isready to close (the closing springsare fully charged and trip latch is inthe reset position). The LCS is veryuseful in fast transfer and automatictransfer applications when it isimportant that the breaker respondsto close on a single close voltage sig-nal of rated magnitude. The LCS isavailable in two versions:

• Latch Check Switch Wired ToSpring Release - The LCS can bewired directly to the SpringRelease Device to provide a con-tact closure when the breaker isready to close. This delays thevoltage signal to the SpringRelease until the breaker is readyto close.

Figure 4 Spring Release withOptional Latch Switch

Operational ① ClosingControl Voltage Range Inrush Power Time Voltages 70-110% Consumption (ms)

Table 2 Spring Release Ratings

① Required for less than 200 ms

24 Vdc

48 Vdc

110-125 Vdc

220-250 Vdc

110-127 Vac

208-240 Vac

17-26 Vdc

34-53 Vdc

77-138 Vdc

154-275 Vdc

77-140 Vac

146-264 Vac

250 W

250 W

450 W

450 W

450 VA

450 VA

40

40

40

40

40

40

Figure 5 Undervoltage Release Figure 7 Shunt Trip, Spring Releaseand Undervoltage Release Installed


Internal Electrical AccessoriesOther electrical accessories aremounted inside the circuit breaker.They can be factory or site installed.There are two different internallymounted accessories:

• Overcurrent Trip Switch (BellAlarm)

• Motor Operator

Overcurrent Trip Switch (BellAlarm) - An overcurrent trip switch(bell alarm) is an optional device(Figure 8). It provides an electricalindication when a circuit breaker tripsas a result of the trip unit reacting toan overcurrent condition. Opening asa result of a circuit breaker’s manualopen button, shunt trip or undervoltagerelease does not cause the overcurrenttrip switch to operate. The overcurrenttrip switch has (2a 2b) Form C contacts(Table 4).

The status of the contacts changes when the trip indicator popsout. This permits the switch to be used as an alarm or in conjunction with a springrelease to block a subsequent remoteelectrical closing signal.


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May 2003

Table 3 Undervoltage Release

Operational Dropout ① ➁ Opening Control Voltage Range Volts Inrush/Continuous Time Voltages 85-110% 30-60% Power Consumption (ms)24 Vdc ①

32 Vdc ①

48 Vdc ①

110-125 Vdc ①

220-250 Vdc ①

110-127 Vac ➁

208-240 Vac ➁

380-415 Vac ➁

480 Vac ➁

600 Vac ➁

20-26 Vdc

27-35 Vdc

41-53 Vdc

94-138 Vdc

187-275 Vdc

94-140 Vac

177-264 Vac

323-457 Vac

408-528 Vac

510-660 Vac

7-14 Vdc

10-19 Vdc

14-29 Vdc

33-75 Vdc

66-150 Vdc

33-76 Vac

62-144 Vac

114-249 Vac

144-288 Vac

180-360 Vac

250 W/18 W

275 W/15 W

275 W/18 W

450 W/10 W

450 W/10 W

450 VA/10 VA

400 VA/10 VA

480 VA/10 VA

400 VA/10 VA

400 VA/10 VA

70

70

70

70

70

70

70

70

70

70

① Required for 200 ms

➁ Required for 400 ms

Figure 8 Mechanical Trip Indicatorwith Associated Overcurrent TripSwitch

MechanicalTripIndicator

Auxiliary Switch - An auxiliaryswitch is an optional accessorydevice that is mounted internal to thecircuit breaker. Each auxiliary switchstage (Figure 6) has 2a (normallyopen) and 2b (normally closed) con-tacts wired to the breaker secondarycontacts for customer use in remoteindication or external electricalschemes. (See Table 4 for auxiliaryswitch contact ratings.) The contactschange state as the breaker opensand closes.

A maximum of 3 switch stages of2a/2b contacts can be mounted inMagnum Standard and DoubleFrame Circuit Breakers for a total of6a and 6b available contacts. If morethan two switch stages are requiredon the Narrow Frame Breaker, referthe application to Cutler-Hammer.Due to the 48 point secondary termi-nal block limitation on the NarrowFrame Breaker, only 2 stages of 2a/2bcontacts can be mounted if the fullcompliment of breaker internalaccessories are employed. However,if the breaker is not fully acces-sorized, the Narrow Frame Breakercan accommodate 3 auxiliary switchstages of 2a/2b contacts.

Figure 6 Auxiliary Switch (2A/2B)

Table 4 Auxiliary Switch,Overcurrent Trip Switch andCell Switch Contact Ratings

Control Contact RatingVoltages Inductive Load

(amperes)250 Vac

125 Vdc

250 Vdc

10

0.5

0.25



PG01301002E

Figure10 Motor Operator Installedin Narrow Frame Circuit Breaker

Motor Operator - A Motor operatoris an electric motor assembly internallymounted in the circuit breaker(Figures 9 and 10). It charges theclosing springs electrically for remoteor local operation. The motor operatorcan be factory or site installed (Table10).

To convert a manually operated circuitbreaker to an electrically operatedcircuit breaker, a motor operator kitis available.

Table 5 Motor OperatorControl ① Operational Running Typical Power Maximum

Voltage Range Current Inrush Consumption Charging Time Voltages 85-110 % (A. avg.) Current (watts or VA) (seconds)

24 Vdc

48 Vdc

110-125 Vdc

220-250 Vdc

110-127 Vac

208-240 Vac

20-26

41-53

94-138

187-225

94-140

177-264

12.0

5.0

2.0

1.0

2.0

1.0

300% of Running

500% of Running

600% of Running

600% of Running

600% of Running

600% of Running

300

250

250

250

250

250

5

5

5

5

5

5

① AC voltages are 50/60Hz

Figure 9 Motor Operator Kit


Door Escutcheon - The doorescutcheon is a molded frame usedto seal the space between the circuitbreaker and the compartment doorcutout. It is supplied with a mountinggasket (Figure16).

IP54 Cover - A hinged domeshaped cover attaches to the metalcompartment door to provide water-proof protection for the circuit break-er (Figure 17).

Cassette Cell Switch - The cassettecell switch (Figures 14 and 15) isalso known as the cell positionswitch or the TOC (Truck OperatedCell) switch. The cell switch is anoptional accessory that is provided inkit form for installation by the panelassembler. Up to 3 cell switchstages, each with 4 Form C contactscan be mounted on the right handside of the cassette. (See Table 4 forcell switch contact ratings.) Onestage can be mounted on each of theDISCONNECT, TEST, or CONNECTmounting locations on the cassette.The switch contacts change statewhen the breaker is levered into theDISCONNECT, TEST, or CONNECTpositions. Wires are provided foreach set of Form C contacts for ter-mination to the breaker secondaryterminal blocks (white) or other cus-tomer supplied terminal blocks in thebreaker cell compartment. The con-tacts are generally used for remoteindication or for customer use inexternal breaker control schemes.


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May 2003

Figure 16 Door Escutcheon andGasket

Figure 17 IP54 Cover

Figure 14 Cell Switch (DrawoutPosition Indicator) Unmounted

Figure 15 Cell Switches Mountedon Cassette

Figure 12 Safety Shutters in ClosedPosition

Figure 13 Safety Shutters in OpenPosition

Cassette Safety Shutters -Automatically operated insulatin typesafety shutters are available for usewith the drawout cassette. When thedrawout circuit breaker is leveredfrom the CONNECT position, theshutters automatically close to coverthe fixed primary contacts (Figure12). When the circuit breaker is lev-ered into the cassette, the shuttersautomatically open permitting prima-ry connections to be made (Figure13).

Mechanical Accessories

There are six optional mechanicaltype accessories:

• Operations Counter• Cassette Safety Shutters• Cassette Cell Switch• Door Escutcheon• Waterproof Cover• Mechanical Interlock

Operations Counter - The operationscounter is a mechanical device usedto provide a record of the number ofcircuit operations. It is mounted inthe lower right portion of the circuitbreaker and can be viewed throughthe front cover (Figure 11).

Figure 11 Operations Counter

Operations Counter



PG01301002E

Mechanical Interlock - A family ofmechanical interlocks are available tointerlock the closing of two or threeMagnum circuit breakers. Themechanical interlock holds one ormore circuit breakers tripped (preventsclosure) when others are closed. Alever assembly is mounted on eachbreaker which interfaces with thepole shaft and the tripper bar. Thelever assemblies are interconnectedwith either cables or rods, dependingupon the relative orientation of thebreakers. Rods can be used onlywhen the circuit breakers to be inter-locked are vertically stacked. Cablescan be used for any orientation ofthe breakers. Mechanical interlocksare available for both fixed and drawoutcircuit breakers and in both 2-wayand 3-way versions. An illustrationof a 2-way cable interlock mountedon two drawout circuit breakers isshown in Figure 18. In addition,refer to Table 6 for the possiblemechanical interlock configurations.

Figure 18 Cassette-Mounted 2-WayCable Interlock

Table 6 Mechanical Interlock Configurations

Type of Number of Breakers Possible Interlock Interlocked Description of Interlocks Interlock Logic

Type 2

Type 31

Type 32

Type 33

Across 2 Breakers

Across 3 Breakers

Across 3 Breakers

Across 3 Breakers

One Normal Power Supply (A)One Emergency Power Supply (B)

Two Normal Power Supplies (A & C)One Emergency Power Supply (B)

Circuit Breakers A and C can be closed if B isopen. B can only be closed if A and C are open.

Two Power Supplies (A & C)One Bus Tie Breaker (B)

One or two breakers out of 3 can be closed at thesame time.

Three Power Supplies (A, B & C)Normal or Emergency, only one of which can be

closed at a time.

A B0 01 00 1

A B C0 0 01 0 00 1 00 0 11 0 1A B C0 0 01 0 00 1 00 0 11 1 00 1 11 0 1A B C0 0 01 0 00 1 0


Breaker Lock OFF DevicesMagnum DS Circuit Breakers areequipped with a variety of lockoff devices for both the CircuitBreaker and the Drawout Cassette tomaximize safety during equipmentoperation and maintenance.

Padlockable Levering DeviceAccess Door - The levering Deviceaccess door includes padlock provi-sions as a standard feature on alldrawout circuit breakers. It isdesigned to receive a padlock up to 8 mm (0.312 inches) in diameter.When the access door is padlockedshut, the breaker levering tool cannotbe inserted, preventing the breakerfrom being levered to another position (Figure 1).

Access Door - The padlockablepushbutton cover is an optional factory configured or field option kitaccessory that mounts on the breakerfaceplate. It is available with eithermolded plastic or metal frames withclear plastic hinged blocking plates(Figure 2). When they are closedand padlocked, the blocking platesprevent access to the breaker PUSHOFF and PUSH ON mechanical push-buttons. This device can also beconfigured with an additional plate toblock only the PUSH ON pushbutton.A small hole is pre-drilled in theblocking plates to provide emergencyaccess with a special tool as requiredper the National Electric Code. Thepadlockable pushbutton cover willreceive a padlock with up to a 8 mm(0.312 inches) diameter.

Cassette Lock Provisions - Thecassette lock provisions field optionkit is an accessory that mounts onthe side of a circuit breaker cassette(Figure 4). The customer must specifyif the lock is to be located on the leftor right-hand side of the cassette.When installed, the device holds thebreaker trip-free when the breaker islevered to the CONNECTED position.This prevents the breaker from beingclosed and circuit energized.

Single or multiple cylinder Kirk,Castell or Ronis locks can be accom-modated. The device can be usedwith commonly applied breakerinterlocking schemes such as Main-Tie-Main configurations, etc.

Breaker OFF Key Lock Provisions- The breaker OFF key lock is anoptional accessory that allows thebreaker to be locked in the OFF posi-

tion with the key removed, prevent-ing the breaker from being closed. Itis primarily intended for use on fixedmounted circuit breakers, but canalso be applied on drawout breakers(Figure 3).

When selected as a factory configuredoption, the breaker includes a pre-drilled hole covered with a plasticcap on the breaker front cover. Alock provisions hardware kit isshipped with the breaker to facilitateinstallation of a single Kirk, Castell or Ronis cylinder lock. The cylinderlock is generally provided andassembled to the breaker at the pointof use by the enclosure manufactureror customer. For existing breakers, a breaker key lock provisions fieldoption kit is also available. To facilitateinstallation, a drill point mark islocated on the inside of the breakerfront cover to identify the drillinglocation for the key lock installation.

46 Breaker Lock OFF Devices

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Figure 1 Closeup of PadlockableLevering Device Access Door

Figure 2 ON-OFF PushbuttonLockable Cover Plate

Figure 3 Cover Mounted Key Lock

“OFF”Key Lock

Figure 4 Cassette Mounted Key Lock


47Breaker Lock OFF DevicesMay 2003

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Cassette Shutter LockProvisions - As a standard feature,the narrow frame cassette shuttersystem includes provisions to pad-lock the shutter in the CLOSED posi-tion when the breaker is withdrawn.The shutter lock provisions will receivea padlock with up to a 0.312 inches(8 mm) diameter.


Ambient Temperature

This table gives derating factors forcircuit breakers operating in switch-boards at various internal ambienttemperatures. The switchboard’sinternal ambient should be estimatedusing the calculation methods of IEC890, 1997 or an equivalent method.

Bus Bar Recommendations

The bus bar sizes shown in the tableare those specified in IEC 947-1and/or used by Cutler-Hammer intheir circuit breaker type testing.They are for 3 meter long bus barwith the faces vertical and paintedflat black. For other bus bar configu-rations, larger bus bar sizes may berequired or the circuit breaker mayhave to be derated. Refer to thetable in this section entitled “CircuitBreaker Continuous Current Ratingsat Different Ambients” for deratinginformation at higher ambient tem-peratures. Refer to the two graphicexamples below.

48 Application and Installation Information

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May 2003

Circuit Breaker Continuous Current at Different Ambients

Continuous CurrentCurrent By BreakerType (Amperes)

MWN-408, 608MWI-508, 608, 808, C08

MWN-410, 610MWI-510, 610, 810, C10

MWN-412, 612

MWI-512, 612, 812, C12

MWN-516, 616MWI-616, 816, C16MWN-520, 620

MWI-620, 820, C20

MWI-625, 825, C25

MWI-632, 832, C32

MWI-64N, 84N, C4N

MWI-850, C5N

MWI-863, C6N

Ambient Temperature (°C)

40

800

1000

1250

1250

160016002000

2000

2500

3200

4000

5000

6300

45

800

1000

1250

1250

16001600 2000

2000

2500

3150

4000

5000

6300

50

800

1000

1250

1250

160016002000

2000

2500

3100

4000

5000

6200

55

800

1000

1200

1250

16001600 1900

2000

2500

3000

4000

5000

6000

60

800

1000

1100

1250

150016001800

2000

2500

2800

4000

5000

5600

70

800

1000

1000

1250

135016001650

2000

2500

2550

4000

5000

5100

Bus Bar Sizes and Quantities

Maximum ServiceCurrent, Amperes(40°C Ambient)

800100012501600200025003200400050006300

Circuit BreakerFrame (MWN- &

MWI-)

08101216202532405063

RecommendedBus Bar Quantities

and Sizes

(mm)(2) 5 x 50(2) 5 x 60(2) 5 x 80(2) 5 x 100(3) 5 x 100(4) 5 x 100(3) 10 x 100(4) 10 x 100(5) 10 x 100(6) 10 x 100

(in)(1) .25 x 3.0(2) .25 x 2.0(2) .25 x 3.0(2) .25 x 3.0(3) .25 x 3.0(4) .25 x 3.0(3) .25 x 6(4) .25 x 6(5) .25 x 6(6) .25 x 6

(T) (5mm)

(60mm)(W)

Example 1

T = Thickness of Bus BarW = Width of Bus Bar

Example 2

Illustration of 2 5mm by 60mm BusBars stacked to carry 800 amperes


49Application and Installation InformationMay 2003

PG01301002E

Altitude Rating Factors

Magnum circuit breakers can beapplied at their full voltage and cur-rent ratings up to a maximum alti-tude of 2000 meters above sea level.When installed at higher altitudes, theratings are subject to correction fac-tors. Short circuit current is notaffected as long as the voltage israted in accordance with the table.

Watts Loss Data

Refer to the table for Magnum resis-tance and watts loss data to be used inIEC 890 temperature rise calculations.

Altitude(Meters)

200021502300245026002750290030503200335035003650380039505000

VoltageCorrection

1.0000.9890.9760.9630.9500.9330.9170.9000.8830.8670.8500.8330.8170.8000.700

CurrentCorrection

1.0000.9980.9950.9930.9900.9870.9830.9800.9770.9730.9700.9670.9630.9600.940

Altitude Rating Factors Magnum Resistance and Watts Loss Data

Circuit Breaker Frame

MWN-408MWN-410MWN-412

MWN-508MWN-510MWN-512MWN-516MWN-520

MWN-608MWN-610MWN-612MWN-616MWN-620

MWI-408MWI-608MWI-808MWI-C08



MWI-616MWI-816MWI-C16





MWI-850MWI-C50

MWI-863MWI-C63

DC Resistance(µΩ/pole)

Fixed242424

2424242418

1818181818

24151212

15151212

15151212

151212

121212

888

888

666

44

44

DC Resistance(µΩ/pole)Drawout

606060

4242424236

3636363636

60332424

33332424

33332424

332424

242424

202020

202020

121212

1010

1010

AC Watts Loss ①(Total 3 Poles)

Fixed 6095150

6095150240280

4570110180280

60403530

60605050

85907070

150120120

190190190

200200200

320320320

380380380

400400

620620

AC Watts Loss ①(Total 3 Poles)

Drawout 150240370

110170260420560

90140220360560

150857060

1301309595

185200140140

330240240

330380380

500500500

800800800

750750750

10001000

15501550

① Estimate based on RAC/RDC = 1.30, total loss at fully rated current.


Recommended ElectricalClearances

The following electrical clearanceinformation is provided as guidancewhen installing drawout or fixed circuitbreakers in an enclosure. Refer tothe graphic representations and theassociated dimensional table.

Recommended Enclosure Size and Ventilation

A graphic of a typical enclosure andan associated table of dimensionsare provided as guidance for circuitbreaker enclosure design withrespect to the enclosure size and therequired amount of ventilation space.

50 Application and Installation Information

PG01301002E

May 2003

Breaker Enclosure To Insulated To Grounded With Cell SwitchMounting Dimension Surface Metal Surface or Key Lock

Drawout A 0 0 0B 25 25 25/75

Fixed A 150 250 -B 30 70 -

Electrical Clearance Dimensions (mm)

Recommended Enclosure Electrical Clearances

Do Not Block VentOpenings in

Drawout Cassette

100

Cell Switch

(optional)

Key Lock(optional)

A A

B B

Minimum Enclosure Size and Ventilation

Width Cassette Width + 75 mm

Height 550 mm

Depth 450 mm (Front Compartment)

Ventilation 160 cm2 (800-3200A)320 cm2 (4000-6300A)

Recommended Enclosure/Ventilation Dimensions

H

W

D

V

D

W

H

V

V

Top or RearVent Open Area

Rear or BottomVent Open Area


51Factory Configured BreakersMay 2003

PG01301002E

Factory Configured CircuitBreakers

Magnum Air Circuit Breakers areordered using a 25-digit catalognumbering system that allows formaximum options and flexibility.Circuit breaker configuration isachieved by using a simple 2-stepprocess.

Note: If the breaker is drawout construction and a cassette isrequired, the cassette must be configured separately.

Step 1: Select a 10-Digit BreakerCatalog Number Prefix.

Choose the breaker prefix fromTables 5.1, 5.2, 5.3 or 5.4 basedon the following:

Drawout of Fixed Construction

Number of Poles

Continuous Current Rating

Magnum Frame Type

Interrupting Rating

Short Time Withstand

Phasing (Double-wides only)

Catalog Position 20 establishesif an optional OTS/Bell Alarm Switchand/or a Mechanical Trip Indicator isinstalled per Table 3.14.

Catalog Position 21 establishesif an optional PadlockablePushbutton Cover is installed perTable 5.15.

Catalog Position 22 establishesif an optional Key Interlock Provisionis installed per Table 5.16.

Catalog Position 23 establishesif an optional Latch Check Switch isinstalled per Table 5.17 and/or designates the voltage connection ifan 1150 Trip Unit is supplied.

Catalog Position 24 establishesif the breaker is shipped alone or in acassette with options per Table5.18.

Catalog Position 25 is reservedfor Cutler-Hammer use per Table5.19.

Step 2: Select Breaker CatalogPositions 11 through 25 to designate factory installedoptions as follows:

Catalog Positions 11 and 12establish the sensor and rating plugratings per Tables 5.5, 5.6and 5.7.

Catalog Positions 13 and 14establish the trip unit type per Table5.8.

Catalog Position 15 establishesif an optional Shunt Trip is installedper Table 5.9.

Catalog Position 16 establishesif an optional Motor Operator isinstalled per Table 5.10.

Catalog Position 17 establishesif an optional Spring Release Deviceis installed per Table 5.11.

Catalog Position 18 establishesif an optional Undervoltage Releaseor Second Shunt Trip is installed perTable 5.12.

Catalog Position 19 establishesif optional Auxiliary Switches areinstalled per Table 5.13.


52 Factory Configured Breakers

PG01301002E

May 2003

Catalog Number Character Positions1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

Character DescriptionPosition

3 Circuit Breaker Frame

4 Interrupting/Withstand Rating

5 & 6 Continuous Amperes and Phasing (Facing Front of Breaker)

7 Poles and Neutral (Facing Front of Breaker)

8 Mounting Configuration and Load Terminals

9 Nameplate Language

10 Used by Cutler-Hammer

11 & 12 Sensor and Rating Plug Rating

13 & 14 Trip Unit and Protection (and External ControlVoltage When Required)

15 Shunt Trip (ST)


16 Motor Operator for Charging Closing Spring

17 Spring Release Device (SRD)

18 Undervoltage Release (UVR) or 2nd. Shunt Trip (ST)

19 Auxiliary Switch

20 OTS/Bell Alarm Switch and/or MechanicalIndicator

21 Padlock Provisions for Close & Open Buttons

22 Operations Counter and/or Keylock Provisions

23 Latch Check Switch/Trip Unit Line VoltageConnection for 1150 Trip Unit

24 Shipping Instructions

25 Used by Cutler-Hammer

Figure 5-1 Circuit Breaker 25-character Catalog Number Selections

M W A – X



PG01301002E

Table 5.1 Magnum Drawout Mounted Circuit Breakers (First 10 Character Positions of Catalog Number)

This selection is for a drawout circuit breaker with primary disconnecting contacts (finger clusters).

ContinuousCurrent Rating

Amps at 40°C ①

80010001250

8001000125016002000

8001000125016002000

800100012501600200025003200

800100012501600200025003200

800100012501600200025003200

4000

400050006300

400050006300

Magnum ACBFrame Type

NarrowNarrowNarrow

NarrowNarrowNarrowNarrowNarrow


Standard Standard Standard Standard Standard Standard Standard



Double

DoubleDoubleDouble

DoubleDoubleDouble

InterruptingRating (kA) at690V Icu/Ics ②

40/4040/4040/40

50/5050/5050/5050/5050/50

65/6565/6565/6565/6565/65

65/6565/6565/6565/6565/6565/6565/65

85/8585/8585/8585/8585/8585/8585/85

100/85 ➃100/85 ➃100/85 ➃100/85 ➃100/85 ➃100/85 ➃100/85 ➃

65/65

85/8585/8585/85

100/100100/100100/100

Icw WithstandRating (kA) 1-Sec/3-Sec

40/--40/--40/--

50/--50/-- 50/-- 50/-- 50/30

65/4065/4065/4065/4065/40

65/--65/--65/--65/--65/5065/5065/50

85/6585/6585/6585/6585/6585/6585/65

85/6585/6585/6585/6585/6585/6585/65

65/--

85/--85/--85/--

100/--100/--100/--

3-Pole CatalogNumber

Positions 1-10

MWN4083LEAMWN4103LEAMWN4123LEA

MWN5083LEA MWN5103LEA MWN5123LEAMWN5163LEAMWN5203LEA

MWN6083LEAMWN6103LEAMWN6123LEAMWN6163LEAMWN6203LEA

MWI6083LEAMWI6103LEA MWI6123LEAMWI6163LEA MWI6203LEAMWI6253LEAMWI6323LEA


MWIC083LEAMWIC103LEA MWIC123LEAMWIC163LEA MWIC203LEAMWIC253LEAMWIC323LEA

MWI64N3LEA

MWI84N3LEAMWI85N3LEAMWI86N3LEA

MWIC4N3LEAMWIC5N3LEAMWIC6N3LEA

3-Pole ➂

Phasing (Left to Right)

ABCABCABC

ABCABCABCABCABC

ABCABCABCABCABC

ABCABCABCABCABCABCABC



AABBCC

AABBCC AABBCC AABBCC



Positions 1-10

MWN4084LEAMWN4104LEAMWN4124LEA

MWN5084LEA MWN5104LEA MWN5124LEA MWN5164LEAMWN5204LEA

MWN6084LEAMWN6104LEAMWN6124LEAMWN6164LEAMWN6204LEA



MWIC084LEAMWIC104LEA MWIC124LEAMWIC164LEA MWIC204LEAMWIC254LEAMWIC324LEA

MWI64N4LEA

MWI84N4LEAMWI85N4LEAMWI86N4LEA

MWIC4N4LEAMWIC5N4LEAMWIC6N4LEA

4-Pole ➂


NABCNABCNABC

NABCNABCNABCNABCNABC


NABCNABCNABCNABCNABCNABCNABC



NNAABBCC

NNAABBCC NNAABBCCNNAABBCC


Narrow Frame Drawout Circuit Breaker ⑤

Standard Frame Drawout Circuit Breaker ⑤

Double Frame Drawout Circuit Breaker ⑤

① Magnum air circuit breakers are 100% thermal rated (no de-rating necessary when properly applied in a specified enclosure② Interrupting ratings shown are also applicable at 380V/415V/440V/500V/690V unless otherwise indicated.➂ Phasing left to right when facing front of breaker. Neutral is rated 100% kf continuous current.➃ Icu is 100kA at 440Vac and 85kA at 690Vac. Ics is 85kA at 690Vac and below.⑤ Magnum ACBs carry an IT rating at 440Vac per EN 60947-2 Annex H. Contact Cutler-Hammer for 690Vac IT applications.


54 Factory Configured Breakers

PG01301002E

May 2003

Table 5.2 Magnum Fixed Mounted Circuit Breakers(First 10 Character Positions of Catalog Number)

This selection is for a fixed circuit breaker with fixed mounting feet and horizontal terminal pads for bus connections.


Amps at 40°C ①

80010001250

8001000125016002000

8001000125016002000

800100012501600200025003200

800100012501600200025003200

800100012501600200025003200

4000

400050006300

400050006300


NarrowNarrowNarrow





Standard ⑤Standard ⑤Standard ⑤Standard ⑤Standard ⑤Standard ⑤Standard ⑤

Double

DoubleDoubleDouble

DoubleDoubleDouble

InterruptingRating (kA) at690V Icu/Ics ②

40/4040/4040/40

50/5050/5050/5050/5050/50

65/6565/6565/6565/6565/65

65/6565/6565/6565/6565/6565/6565/65

85/8585/8585/8585/8585/8585/8585/85

100/85100/85100/85100/85100/85100/85100/85

65/65

85/8585/8585/85

100/100100/100100/100


40/--40/--40/--

50/--50/--50/--50/--50/30

65/4065/4065/4065/4065/40

65/--65/--65/--65/--65/5065/5065/50

85/6585/6585/6585/6585/6585/6585/65

85/6585/6585/6585/6585/6585/6585/65

65/--

85/--85/--85/--

100/--100/--100/--


Positions 1-10 ➂

MWN4083HEAMWN4103HEAMWN4123HEA

MWN5083HEA MWN5103HEA MWN5123HEAMWN5163HEAMWN5203HEA

MWN6083HEAMWN6103HEAMWN6123HEAMWN6163HEAMWN6203HEA

MWI6083HEAMWI6103HEA MWI6123HEAMWI6163HEA MWI6203HEAMWI6253HEAMWI6323HEA


MWIC083HEAMWIC103HEA MWIC123HEAMWIC163HEA MWIC203HEAMWIC253HEAMWIC323HEA

MWI64N3HEA

MWI84N3HEAMWI85N3HEAMWI86N3HEA

MWIC4N3HEAMWIC5N3HEAMWIC6N3HEA

3-PolePhasing ➃

(Left to Right)

ABCABCABC

ABCABCABCABCABC

ABCABCABCABCABC




AABBCC




Positions 1-10➂

MWN4084HEAMWN4104HEAMWN4124HEA

MWN5084HEA MWN5104HEA MWN5124HEA MWN5164HEAMWN5204HEA

MWN6084HEAMWN6104HEAMWN6124HEAMWN6164HEAMWN6204HEA



MWIC084HEAMWIC104HEA MWIC124HEAMWIC164HEA MWIC204HEAMWIC254HEAMWIC324HEA

MWI64N4HEA

MWI84N4HEAMWI85N4HEAMWI86N4HEA

MWIC4N4HEAMWIC5N4HEAMWIC6N4HEA

4-PolePhasing ➃

(Left to Right)

NABCNABCNABC






NNAABBCC



Narrow Frame Fixed Circuit Breaker ➅

Standard Frame Fixed Circuit Breaker ➅

Double Frame Fixed Circuit Breaker ➅

① Magnum air circuit breakers are 100% thermal rated (no de-rating necessary when properly applied in a specified enclosure).② Interrupting ratings shown are also applicable at 380V/415V/440V/500V/690V unless otherwise indicated.➂ Fixed breakers have (H) horizontal terminals. Vertical adapters (V) are priced separately.➃ Phasing Left to Right when facing front of circuit breaker - Neutral rated 100% of continuous current⑤ Icu is 100kA at 440Vac and 85kA at 690Vac. Ics is 85kA at 690Vac and below.➅ Magnum ACBs carry an IT rating at 440Vac per EN 60947-2 Annex H. Contact Cutler-Hammer for 690Vac IT applications.



PG01301002E

Table 5.3 Basic Drawout Mounted Air Circuit Breaker(Tested to EN 60947-2 Cat B; witnessed and certified with a KEMA-KEUR Mark)

Special Application – 1100 Vac Air Circuit Breakers – Drawout and Fixed Mounting (Tables 5.3 and 5.4)

A Basic Drawout Mounted Air Circuit Breaker includes a manually operated breaker frame (moving portion) only with primary disconnecting contacts(finger clusters) and one current sensor per phase.


Amps at 40°C ①

3200


Standard

InterruptingRating (kA) at690V Icu/Ics

25/25


--/--


MWK2323LEA

3-Pole ②


ABC


MWK2324LEA

4-Pole ②


NABC

① Magnum air circuit breakers are 100% thermal rated (no de-rating necessary when properly applied in a specified enclosure② Phasing left to right when facing front of breaker. Neutral is rated 100% kf continuous current.

Table 5.4 Basic Fixed Mounted Air Circuit Breaker(Tested to EN 60947-2 Cat B; witnessed and certified with a KEMA-KEUR Mark)A Basic Fixed Mounted Air Circuit Breaker includes a manually operated breaker frame only with horizontal rear terminals, one current sensor per phase,and one secondary terminal block mounting bracket.


Amps at 40°C ①

3200


Standard

InterruptingRating (kA) at690V Icu/Ics

25/25


--/--


MWK2323HEA

3-Pole ②


ABC


MWK2324HEA

4-Pole ②


NABC

① Magnum air circuit breakers are 100% thermal rated (no de-rating necessary when properly applied in a specified enclosure② Phasing left to right when facing front of breaker. Neutral is rated 100% kf continuous current.


56

PG01301002E

May 2003

Factory Configured Breakers

Tables 5.5, 5.6 and 5.7 Magnum Factory Installed Current Sensors and Rating Plugs Option for Fixed orDrawout Circuit Breakers (Character Positions 11 and 12 of Catalog Number)Depending on the circuit breaker frame type, select current sensors and rating plugs from Tables 5.5, 5.6 or 5.7. One current sensor per phase and onerating plug are included as standard with all fixed and drawout circuit breakers unless a circuit breaker is a non-automatic switch. Select NN for charac-ter positions 11 and 12 if the circuit breaker is non-automatic (without integral trip unit protection). Select the current sensor and rating plug rating bycircuit breaker frame size. For 3-pole circuit breaker earth fault applications on 3-phase, 4-wire circuits, external neutral mounted current sensors mustbe ordered separately.

Table 5.5 Available Current Sensors and Rating Plugs for Narrow Frame

Catalog NumberPositions 11 and 12

NN - None ①201613121008070604030502

2000A

20001600125012001000800630600400300250200

1600 A

1600125012001000800630600400300250200

1250 A

125012001000800630600400300250200

800 A

800630600400300250200

Table 5.6 Available Current Sensors and Rating Plugs for Standard Frame


NN - None ①323025201613121008070604030502

3200 A

32003000250020001600125012001000800630600400300250200

2500 A

250020001600125012001000800630600400300250200

2000 A

20001600125012001000800630600400300250200

1600 A

1600125012001000800630600400300250200

1250 A

125012001000800630600400300250200

1000 A

1000800630600400300250200

Table 5.7 Available Current Sensors and Rating Plugs for Double Frame


NN - None ①635040322520

6300 A

6300500040003200

5000 A

5000400032002500

4000 A

4000320025002000

1000 A

1000800630600400300250200

800 A

800630600400300250200

① Non-Automatic Switch


57May 2003

PG01301002E


Table 5.8 Factory Installed Trip Unit Option for Fixed or Drawout Circuit Breakers(Character Positions 13 and 14 of Catalog Number)


NN NN NN NN

22

525W

M2MW

MTMUMVMJMKMLMEMCMF

CTCUCVCJCKCLCECCCF

1W1N1P1R1S1T

Digitrip RMSTrip Unit

①

Non-Automatic ➄Non-Automatic

Non-Automatic ➄Non-Automatic

220

520520i

520M520Mi

520M520M 520M520Mi 520Mi 520Mi520M 520M520M

520MC LSI520MC LSI 520MC LSI

520MCi LSIG 520MCi LSIG 520MCi LSIG520MC LSIA 520MC LSIA520MC LSIA

1150i1150i1150i1150i1150i1150i

Functions

3-Pole ACB3-Pole ACB4-Pole ACB4-Pole ACB

LI

LSILSIG

LSI LSIG

LSILSI LSI

LSIG LSIG LSIGLSIALSIALSIA

LSI LSI LSI

LSIG LSIGLSIG LSIALSIALSIA

LSI LSI LSI

LSIG & LSIALSIG & LSIA LSIG & LSIA

Trip Unit Power Supply

Voltage ②

Not ApplicableNot Applicable Not ApplicableNot Applicable

Not Applicable

Not ApplicableNot Applicable

None ➂None ➂

24/48 Vdc120 Vac240 Vac

24/48 Vdc120 Vac240 Vac

24/48 Vdc120 Vac240 Vac

24/48 VDC120 Vac240 Vac

24/48 Vdc120 Vac240 Vac

24/48 Vdc120 Vac240 Vac

24/48 Vdc120 Vac240 Vac

24/48 Vdc120 Vac240 Vac

Available onMagnumFrame(s)

Narrow/StandardDouble

Narrow/StandardDouble

Narrow/Standard

All FramesAll Frames

All FramesAll Frames

All FramesAll FramesAll FramesAll FramesAll FramesAll FramesAll FramesAll FramesAll Frames

All FramesAll FramesAll FramesAll FramesAll FramesAll FramesAll FramesAll FramesAll Frames

Standard/DoubleStandard/DoubleStandard/DoubleStandard/DoubleStandard/DoubleStandard/Double

① Digitrip 520MC Trip Unit requires PowerNet Software version 3.2 or higher if PowerNet is used② Power Relay Module mounted integral to circuit breaker receives power from an external customer supplied source wired through thebreaker secondary contacts. The external source powers the trips unit digital display (520M, 520MC and 1150), and relays➂ No Power Relay Module provided for 520M trip unit when this catalogue code is selected. The Digital display powered from current sen-sorsand the circuit breaker must carry 20% rated sensor current to power digital display.➃ Digitrip 1150 has programmable relay trip or alarm contacts for trip unit protective and high load functions. ➄ The maximum available instaneous interrupting rating for the Magnum Standard Frame Non-Automatic Switch is 85kA when the breakeris used with a suitable external overcurrent protective device with instantaneous protection.

Power RelayModule Alarm or

Trip Contact

NoneNone NoneNone

None

NoneNone

NoneNone

High Load AlarmHigh Load AlarmHigh Load Alarm

Earth TripEarth TripEarth Trip

Earth AlarmEarth AlarmEarth Alarm

High Load AlarmHigh Load AlarmHigh Load Alarm

Earth TripEarth TripEarth Trip

Earth AlarmEarth AlarmEarth Alarm

Programmable ➃Programmable ➃Programmable ➃Programmable ➃Programmable ➃Programmable ➃

Digitrip 220 Trip Unit Digitrip 520i Trip Unit Digitrip 520Mi Trip Unit Digitrip 520MCi Trip Unit Digitrip 1150i Trip Unit


58

PG01301002E

May 2003


Table 5.9 Factory Installed Shunt Trip (ST) Optionfor Fixed or Drawout Circuit Breakers (CharacterPosition 15 of Catalog Number) ①

Catalog NumberPosition 15

NARCH

Voltage(AC: 50/60 Hz)

None110 - 127 Vac/dc208 - 250 Vac/dc

24 Vdc48 Vdc

① Refer applications requiring capacitor tripdevices to Cutler-Hammer

Table 5.10 Factory Installed Motor OperatorOption for Fixed or Drawout Circuit Breakers(Character Position 16 of Catalog Number)

For electrically operated circuit breakers, select a Motor Operator andSpring Release Device (SRD) and (if required) a Shunt Trip (ST).


MNPLKWT


Manual Operated110 - 125 Vac220 - 250 Vac

24 Vdc48 Vdc

110 - 125 Vdc220 - 250 Vdc

Table 5.11 Factory Installed Spring Release Device(SRD) Option for Fixed or Drawout Circuit Breakers(Character Position 17 of Catalog Number)


NARCH


None110 - 127 Vac/dc208 - 250 Vac/dc

24 Vdc48 Vdc

Table 5.12 Factory Installed Undervoltage Release(UVR) or Second Shunt Trip Attachment (STA)Option for Fixed or Drawout Circuit Breakers(Character Position 18 of Catalog Number)


NARCHEFGXJK1234


None110 - 127 Vac208 - 240 Vac

24 Vdc48 Vdc

110 - 125 Vdc220 - 250 Vdc

32 V dc380 - 415 Vac

480 Vac600 Vac

110 - 127 Vac208 - 250 Vac

24 Vdc48 Vdc

① Refer requests for Time Delay UVRs to Cutler-Hammer. ➁ Digitrip 1150 Trip Units have an integral adjustable time delay undervoltage tripfunction from the line voltage. ➂ An external customer supplied panel mounted Time Delay Undervoltage Relay canalso be applied, wired through the breaker secondary contacts to a Shunt TripAttachment for Time Delay Undervoltage protection. ➃ Each second Shunt Trip Attachment includes its own cut-off switch.

UVRRelease Type

① ➁ ➂ ➃

NoneInstantaneousInstantaneous Instantaneous InstantaneousInstantaneous InstantaneousInstantaneous InstantaneousInstantaneous Instantaneous

Second Shunt TripSecond Shunt TripSecond Shunt TripSecond Shunt Trip

Motor Spring Charging Cycle

Time (sec)

None555555

Table 5.13 Factory Installed Auxiliary SwitchOption for Fixed or Drawout Circuit Breakers(Character Position 19 of Catalog Number)


N246

Contact Type

None2a/2b4a/4b6a/6b

① Rëfer applications requiring 6a/6b contacts on the Narrow Frame Breaker to Cutler-Hammer.➁ Except when a Second Shunt Trip Attachment is selected, which occupies a 2a/2bcontact mounting position.

Comments

4a/4b maximum on Narrow Frame ①

6a/6b maximum on Double or Standard Frames ➁

Table 5.14 Factory Installed Bell Alarm/OTS SwitchOption for Fixed or Drawout Circuit Breakers(Character Position 20 of Catalog Number)


ENY

MechanicalTrip Indicator

NoYesYes

OTS Switchwith 2 Form C Contacts

NoNoYes

This option is for circuit breakers with trip units only, not available onNon-Automatic Circuit Switches.


59May 2003

PG01301002E


Table 5.15 Factory InstalledPadlockable Pushbutton Cover Option forFixed or Drawout Circuit Breakers(Character Position 21 of Catalog Number)


NMPCH

Description

NoneMetal Frame (Open and Close)Plastic Frame (Open and Close)

Block Close PB Metal FrameBlock Close PB Plastic Frame

Table 5.16 Factory Installed OperationsCounter/Key Interlock Provisions Option forFixed or Drawout Circuit Breakers(Character Position 22 of Catalog Number)


NKCRAYLH

Counter Type

No CounterNo CounterNo CounterNo Counter

Operations CounterOperations CounterOperations CounterOperations Counter

① Key Interlock provision includes a hole in the front cover withcap plus provisions hardware kit for customer installation ofcustomer supplied cylinder lock.

Keylock Provision ①

No LockKirk Lock

Castell LockRonis Lock

No LockKirk Lock

Castell LockRonis Lock

Table 5.17 Factory Installed Latch CheckSwitch/Metering Trip Unit ConfigurationOption for Fixed or Drawout Circuit Breakers(Character Position 23 of Catalog Number)


NMLYCD

Latch Check Switch(LCS) Connection

None (Default)None

Latch Check Switch wired to Spring ReleaseLatch Check Switch wired to Spring Release

Latch Check Switch for External Wiring (1 Form C) ①

Latch Check Switch for External Wiring (1 Form C) ①

Metering Trip Unit Line Voltage Connection(Applicable only when Digitrip RMS 1150 Trip

Unit is selected in Catalog Positions 13 and 14)

Upper Terminal Voltage ConnectionLower Terminal Voltage ConnectionUpper Terminal Voltage ConnectionLower Terminal Voltage ConnectionUpper Terminal Voltage ConnectionLower Terminal Voltage Connection

The Latch Check Switch monitors the circuit breaker trip latchand readiness to close.

① Form C contact wired through circuit breaker secondary contacts for external use.

Table 5.18 Circuit Breaker and CassetteShipping Instructions①

(Character Position 24 of Catalog Number)

Configure the drawout cassette and cassette options using Figure 5-2(Cassette Catalog Number Selections) and its accompanying tables.

CatalogNumber

Position 24

A

C

C

P

P

S

S

W

W

ShipmentDescription

Fixed orDrawout ACB

Alone

Drawout ACB in Narrow CassetteDrawout ACB in

Universal Cassette


Universal Cassette


Universal Cassette


Universal Cassette


All Frames

Narrow

Standard

Narrow

Standard

Narrow

Standard

Narrow

Standard

Shutters

NotApplicable

No Shutters

No Shutters

No Shutters

No Shutters

Shutters

Shutters

Shutters

Shutters

Pre-WiredCassette

SecondaryTerminalBlocks

Not Wired

Not Wired

Not Wired

Pre-Wired

Pre-Wired

Not Wired

Not Wired

Pre-Wired

Pre-Wired

Table 5.19 Future Use By Cutler-Hammer(Character Position 25 of Catalog


X

Description

Future FactoryOption

① Double-wide and Standard cassettes ship separately from breakers


60

PG01301002E

May 2003

Factory Configured DrawoutCassettes

Factory configured cassettes for dra-wout Magnum Power CircuitBreakers are ordered using a 15-digitcatalog numbering system. Cassetteconfiguration is achieved by using asimple 2-step process.

Step 1: Select a 7-Digit CassetteCatalog Number Prefix.

Choose the cassette prefix fromTables 5.20 and 5.21 based on thefollowing:

Magnum Cassette Type

Number of Poles

Magnum Breaker Frame Type

Continuous Current Rating

Magnum Frame Type

Step 2: Select Cassette CatalogPositions 8 through 15 to desig-nate factory installed options asfollows:

Catalog Positions 8 and 9 perTable 5.22 are reserved for a futureoption.

Catalog Position 10 establish-es if optional shutters are installedper Table 5.23.

Catalog Positions 11 through13 per Table 5.24 are reserved forfuture options.

Catalog Positions 14 and 15establishes if the cassette is pre-wired per per Table 5.25.

Factory Configured Cassettes

Catalog Number Character Positions1 2 3 4 5 6 7 8 9 10 11 12 13 14 15


1 Cassette Family

2 Future Use

3 & 4 Continuous Amperes

5 Poles

6 Rear Terminals

7 Arc Hood

8 Future Use


9 Future Use

10 Shutters

11 Future Use

12 Future Use

13 Future Use

14 Cassette Wiring

15 Cassette Shipping

Figure 5-2 Drawout Cassette 15-character Catalog Number Selections

W N N N N C

Narrow Frame Cassette (Front and Rear Views)


61May 2003

PG01301002E

Factory Configured Cassettes

Table 5.20 Cassettes for Drawout Circuit Breakers(First 6 Character Positions of Catalog Number)

Cassette standard features include an arc hood, provisions for secondary terminal blocks includ-ing wiring, and a cell rejection kit. Cassettes may be shipped with the circuit breaker by specifyingbreaker Catalog Character Position 24.

Catalog NumberPositions

1 to 6

NN203HEN203HEN323HEN403HEN503H

NN204HEN204HEN324HEN404HEN504H

Poles

3 pole3 pole3 pole3 pole3 pole

4 pole4 pole4 pole4 pole4 pole

Continuous Current Rating (A)

at 40°C

800-2000800-20002500-3200

40005000-6300

800-2000800-20002500-3200

40005000-6300

Table 5.22 Cassette Door Escutcheon and Gasket Kit Option(Positions 8 and 9 of Catalog Number)


DNXN

Table 5.23 Cassette Shutters Option(Character Position 10 of Catalog Number)

Shutters can be factory installed or are also available as a field installation kit forcustomer installation.


N

S

Description

No Shutters

Shutters Installed


All Frames

All Frames

Table 5.24 Future Cassette Option(Positions 11 to 13 of Catalog Number)

Catalog NumberPosition 11 - 13

NNN

Table 5.25 Pre-wired Cassettes Option (Character Positions 14 and 15 of Catalog Number) Pre-wired cassettes include wiring and terminal blocks mounted andwired to secondary contacts ready to receive the circuit breaker.

Catalog NumberPositions14 and 15

NC

WC


Unwired

Pre-wired

MagnumCircuit Breaker

Frame Type

NarrowStandardStandardDouble Double

NarrowStandardStandardDouble Double

Table 5.21 Cassette Arc Hood(Positions 7 of Catalog Number)


AK

Factory installed cassette arc hood option.

Description

600 Vac Breakers 1100 Vac Breakers

Door Escutcheon& Gasket Kit

IncludedNot Included

Factory fitted option to ship kit with cassette.

Poles

3 and 4 pole

3 and 4 pole


at 40°C

All Ratings

All Ratings

Cassette Type

All Cassettes

Magnum Breaker Frame

All Frames

All Frames

ContinuousRating (A)

All

All


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Field Option Kits for Cassettes

Table 5.26 Cassette Shutter Field Option KitPre-wired cassettes include wiring and terminal blocks mounted and wiredto secondary contacts ready to receive air circuit breaker.

MagnumBreaker Frame

NarrowStandardDouble

NarrowStandardDouble

Poles

3 pole3 pole3 pole

4 pole4 pole4 pole


800-2000800-32004000-6300

800-2000800-32004000-6300

Catalog Number

MDNSHTR3PMISHTR332MISHTR363

MDNSHTR4PMISHTR432MISHTR463

Table 5.27 Cassette Cell Switch Field Option KitThis is a field installable kit for use with drawout cassettes and is for customer installation. Theswitch changes position when the circuit breaker is levered to the CONNECT position. The kitincludes the switch, mounting bracket and hardware for customer installation. The switch kit alsoincludes pre-installed wiring for easy field installation to cassette cell secondary terminal blocks.

Magnum BreakerFrame and

Cassette Types

AllAllAllAll

Catalog Number

MICELLSW1M4CSM8CSM12CS

Description

4 Form C Contacts4 Form C Contacts8 Form C Contacts12 Form C Contacts

Type

Switch OnlyKit with Mounting Bracket Kit with Mounting BracketKit with Mounting Bracket

Table 5.28 Cassette Cell LockProvision Field Option KitThis is a field installable kit for use with dra-wout cassettes and is for customer installation.The kit includes mounting provisions for singleor multi-cylinder Kirk or Castell locks providedand fitted to the cassette by the customer.

Catalog Number

MCASSPRLMCASSPRR

Lock

Left SideRight Side

Table 5.29 Secondary Contact WiringField Option Kit

Description

Secondary Terminal Block KitSecondary Terminal Wire KitSecondary Terminal Wire Kit

Secondary Terminal Repair Kit①

with Extraction Tool

Catalog Number

MSECBKMSECWRMKW40

MSECTOOL

Kit Contents

Ouantity 15 6-Point Terminal Blocks with LabelsQuantity 90 Wires for Connecting Secondary Blocks

Quantity 30 Wires 40 Inches Long for Fixed Circuit Breaker Connecting Secondary Blocks Quantity 12 Wires, Quantity 2 6-point Terminal Blocks, and 1 Amp, Inc. Removal Tool

This is a field installable kit for use in wiring fixed circuit breakers or drawout circuitbreaker cassette secondary contacts or for adding option kits in the field. Each kit can beused to complete as many as three circuit breakers, depending on the number and type ofaccessories required for the the circuit breaker.

① Pin Removal Tool can be purchased directly from AMP, Inc. under Part Number 3205183


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Field Option Kits for Circuit Breakers

Table 5.30 Shunt Trip (STA)Field Option KitThis is a field installable kit for fixed or drawout circuit breakers.The kit includes a shunt trip attachment (STA) with plug-inwires, a cut-off switch and instructions. Refer applicationsrequiring capacitor trip devices to Cutler-Hammer.

Voltage(AC:50/60Hz)

110 - 127 Vac/dc208 - 250 Vac/dc

24 Vdc48 Vdc

Catalog Number

MST1MST2MST3MST4

Table 5.31 Motor OperatorField Option Kit (For Charging Closing Spring)This is a field installable kit for fixed or drawout circuitbreakers. The kit includes a motor operator assembly,which includes a motor cut-off switch and instructions.

Voltage(AC:50/60Hz)

110 - 125 Vac220 - 250 Vac

24 Vdc48 Vdc

110 - 125 Vdc220 - 250 Vdc

Catalog Number

MMOTNMMOTPMMOTLMMOTKMMOTWMMOTT

Table 5.32 Spring Release Device (SRD)Field Option KitThis is a field installable kit for fixed or drawout circuitbreakers. The kit includes spring release device (SRD)assembly with plug-in wires and instructions.

Voltage(AC:50/60Hz)

110 - 127 Vac/dc208 - 250 Vac/dc

24 Vdc48 Vdc

Catalog Number

MSRAMSRRMSRCMSRH

Table 5.34 Auxiliary SwitchField Option KitThis is a field installable kit for fixed or drawout circuitbreakers. Note that a maximum of 4a/4b contactsapply to the Narrow Frame and a maximum of 6a/6bapply to the Standard and Double Frames.

Switch Type

2a/2b Contacts

Catalog Number

MAUX2

Table 5.35 Undervoltage Release (UVR)Field Option KitThis is a field installable kit for fixed or drawout circuitbreakers. The kit includes an undervoltage releasedevice and instructions.

Voltage(AC:50/60Hz)

110 - 127 Vac208 - 240 Vac

24 Vdc48 Vdc

110 - 125 Vdc220 - 250 Vdc

32 Vdc380 - 415 Vac

480 Vac600 Vac

Catalog Number

MUVRAMUVRRMUVRCMUVRHMUVREMUVRFMUVRGMUVRXMUVRJMUVRK

UVR ReleaseType ① ② ➂ ➃

InstantaneousInstantaneousInstantaneousInstantaneousInstantaneousInstantaneousInstantaneousInstantaneousInstantaneousInstantaneous

① On applications requiring Time Delay Undervoltage Protection, refer requests forTime Delay UVRs to Cutler-Hammer..➁ Digitrip 1150 Trip Units have an integral adjustable time delay undervoltage tripfunction from the line voltage. ➂ An external customer supplied panel mounted Time Delay Undervoltage Relay canalso be applied wired through the breaker secondary contacts to a Shunt TripAttachment for Time Delay Undervoltage protection.➃ Each second Shunt Trip Attachment includes its own cut-off switch.

Table 5.36 Trip Indication Field Option KitsThese are field installable kits for fixed or drawout circuit breakers.They are for breakers with with trip units only, and not available onNon-Automatic Breakers.

Contacts

None2 Form C2 Form C

CatalogNumber

MDTRINDMDTRINDBA

MOTS

Table 5.37 Operations CounterField Option KitThis is a field installable kit for fixed or drawout circuitbreakers. It also requires a circuit breaker mechanicalpop-out indicator kit, if the existing circuit breakerdoes not have an indicator.

Kit Type

Mechanical Counter

Catalog Number

MCOUNT

Table 5.33 Latch Check Switch Field Option Kit

This is a field installable kit for fixed or drawout circuit breakers includesLCS assembly 1 Form C contact, plug-in wires and instructions.

Catalog Number

MLSC1MLSC2

Description

Latch Check Switch for Wiring Internally to Spring ReleaseLatch Check Switch with 1 Form C Contact for Remote Indication

Trip Indication Kit Description ①

Mechanical Pop-out Trip Indicator KitBell Alarm/Ots Kit with Mechanical Trip Indicator

Bell Alarm/OTS Contact Kit ②

① Manual Reset only.➁ For use with breakers that have mechanical pop-out trip indicator option alreadyinstalled.


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Table 5.38 Padlockable Pushbutton CoverField Option KitThis is a field installable kit for fixed or drawout circuitbreakers. Padlocks are not included and must be providedby customer.

Cover Type ①

Plastic

Metal

Catalog Number

MCOVH

MCOVC

Table 5.39 Breaker Key Lock ProvisionsField Option KitThis is a field installable kit for fixed or drawoutcircuit breakers. The kit includes mountinghardware and brackets to mount single cylinderlock for locking circuit breaker in the Openposition. The cylinder lock and key are notincluded and must be supplied bt customer.

Lock Type

CastellRonisKirk

Catalog Number

MBRLCKCMBRLCKRMBRLCKK

Table 5.41 Sensor/Rating PlugField Change-out KitThis is a field installable kit for changing the sensor/rating plug ratingon fixed or drawout circuit breakers. Narrow and Standard Frame kitsinclude 1 rating plug plus 3 sensors for 3-pole or 4 sensors for 4-polecircuit breakers. Double Frame kits include 1 rating plug plus 6 sensorsfor 3-pole or 8 sensors for 4-pole circuit breakers. The rating plug rat-ing and the sensor rating in the kit match. The sensor ampere ratingselected cannot exceed the circuit breaker frame and ampere rating. Note: For 3 pole breaker ground fault applications on 3 phase, 4 wirecircuits, external mounted sensors must be ordered separately.

Magnum Frame

NarrowNarrowNarrowNarrowNarrowNarrowNarrowNarrowNarrowNarrowNarrowNarrow

StandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandardStandard

DoubleDoubleDoubleDoubleDoubleDoubleDouble

Sensor Rating (A)

20025030040060063080010001200125016002000

20025030040060063080010001200125016002000250030003200

2000250030003200400050006300

3-Pole Catalog Number

M3NRG0200M3NRG0250M3NRG0300M3NRG0400M3NRG0600M3NRG0630M3NRG0800M3NRG1000M3NRG1200M3NRG1250M3NRG1600M3NRG2000

M3SRG0200M3SRG0250M3SRG0300M3SRG0400M3SRG0600M3SRG0630M3SRG0800M3SRG1000M3SRG1200M3SRG1250M3SRG1600M3SRG2000M3SRG2500M3SRG3000M3SRG3200

M3RRG2000M3SRG2500M3RRG3000M3RRG3200M3SRG4000M3RRG5000M3SRG6300

4-Pole Catalog Number

M4NRG0200M4NRG0250M4NRG0300M4NRG0400M4NRG0600M4NRG0630M4NRG0800M4NRG1000M4NRG1200M4NRG1250M4NRG1600M4NRG2000

M4SRG0200M4SRG0250M4SRG0300M4SRG0400M4SRG0600M4SRG0630M4SRG0800M4SRG1000M4SRG1200M4SRG1250M4SRG1600M4SRG2000M4SRG2500M4SRG3000M4SRG3200

M4RRG2000M4RRG2500M4RRG3000M4RRG3200M4SRG4000M4SRG5000M4SRG6300

Table 5.40 Neutral Current Sensor

This is a field installable external accessory for use with fixedor drawout circuit breakers. The fourth sensor is for mount-ing on enclosure neutral in 3-pole circuit breaker earth faultapplications on 3-phase, 4-wire systems.

Magnum Frame

Narrow or StandardNarrow or StandardNarrow or StandardNarrow or StandardNarrow or StandardNarrow or StandardNarrow or StandardNarrow or StandardNarrow or StandardNarrow or StandardNarrow or StandardNarrow or StandardNarrow or StandardNarrow or StandardNarrow or StandardNarrow or Standard

DoubleDoubleDouble

Sensor Rating

200250300400600630800100012001250160020002500300031503200400050006300

Sensor Qty.Required per

3-Pole Breaker

1111111111111111222

Catalog Number

9253C03H019253C03H029253C03H039253C03H049253C03H059253C03H149253C03H069253C03H079253C03H089253C03H159253C03H099253C03H109253C03H119253C03H129253C03H169253C03H139253C03H109253C03H119253C03H13

① The cover can be configured to block the Open and ClosePushbuttons or just the Close Pushbutton.

Use With Customer Supplied Lock and Key Number

Castell # FGCL4008Ronis # 1104A

Kirk Lock # KC40---10 & Key KC4


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Table 5.42 Primary Terminal Adapter Field Option Kits This field installation kit is for changing fixed circuit breakers or drawout cassettes from hori-zontal to desired configuration.

Terminal AdapterKit Type

VerticalVerticalVerticalVerticalVerticalVertical

VerticalVerticalVerticalVerticalVerticalVertical

Front MountFront MountFront MountFront MountFront MountFront Mount

Front MountFront MountFront MountFront MountFront MountFront Mount

MagnumFrame Type

NarrowStandardStandardStandardDouble Double

NarrowStandardStandardStandardDouble Double

NarrowNarrow

StandardStandardDouble Double

NarrowNarrow

StandardStandardDoubleDouble

BreakerPoles

333333

444444

333333

444444

ContinuousCurrent

(A)

800 - 2000800 - 1600Up to 20002500 - 3200

40005000 - 6300

800 - 2000800 - 1600Up to 20002500 - 3200

40005000 - 6300

800 - 1250800 - 2000800 - 2500800 - 3200

40005000 - 6300

800 - 12501600 - 2000800 - 2500800 - 3200

40005000 - 6300

InterruptingRating

(kA)

Up to 65Up to 65Up to 100

AllAllAll

Up to 65Up to 65Up to 100

AllAllAll

Up to 65Up to 65Up to 6585 & 100

AllAll

Up to 65Up to 65Up to 6585 & 100

AllAll

Catalog Number

MVADP320NMVADP16MVADP20MVADP32MVADP40MVADP50

MVADP420NMVADP416MVADP420MVADP432MVADP440MVADP450

NFC312KTNFC320KTSFNTC325SFNTC332

Contact C-HContact C-H

NFC412KTNFC420KTSFNTC425SFNTC432

Contact C-HContact C-H

Table 5.43 Mechanical Interlock ConfigurationsReference Chart for Mechanical Interlock Kits

Type ofInterlock

Type 2

Type 31

Type 32

Type 33

Number of BreakersInterlocked

Across 2 Breakers

Across 3 Breakers

Across 3 Breakers

Across 3 Breakers

Description of Interlocks

One Normal Power Supply (A)One Emergency Power Supply (B)

Two Normal Power Supplies (A and C)One Emergency Power Supply (B)

Circuit breakers A and C can be closed if Bis open. B can only be closed if A and C are open.

Two Power Supplies (A and C)One Bus Tie Breaker (B)

One or Two Breakers out of 3 can beclosed at the same time

Three Power Supplies (A, B and C)Normal or Emergency, only one of which

can be closed at a time

Possible InterlockLogic

A B0 01 00 1

A B C0 0 01 0 00 1 00 0 11 0 1

A B C0 0 01 0 00 1 00 0 11 1 00 1 11 0 1

A B C0 0 01 0 00 1 00 0 1


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Table 5.44 Mechanical Interlock Assembly KitsThis is an external field installation kit for fixed or drawout circuit breakers. Select a MechanicalInterlock Kit and Rod or Cable Kits (Table 5.43) for complete assembly as indicated.

Configuration of Interlocked

Breakers

2 Way2 Way3 Way3 Way3 Way

2 Way2 Way3 Way3 Way3 Way

Type of Breaker

FixedFixedFixedFixedFixed

DrawoutDrawoutDrawoutDrawoutDrawout

Interlock KitType

Rod Type 2Cable Type 2Cable Type 31Cable Type 32Cable Type 33

Rod Type 2Cable Type 2Cable Type 31Cable Type 32Cable Type 33

Catalog Numberof Kit

MI2FRMI2FCMI31FCMI32FCMI33FC

MI2DRMI2DCMI31DCMI32DCMI33DC

Comments

Kit also requires 1 Rod KitKit also requires 1 Cable KitKit also requires 2 Cable KitsKit also requires 3 Cable KitsKit also requires 3 Cable Kits

Kit also requires 1 Rod KitKit also requires 1 Cable KitKit also requires 2 Cable KitsKit also requires 3 Cable KitsKit also requires 3 Cable Kits

Table 5.45 Rod or Cable KitsThis is an external field installation kit for fixed or drawout circuitbreakers. It is required for the assembly of Mechanical InterlockAssembly Kits (Table 5.42)

Kit Type

Rod TypeCable TypeCable TypeCable TypeCable Type

Catalog Numberof Kit

MIRMIC5MIC6MIC8MIC10

Comments

Includes 2 Rods 910 mm long 3 feet) eachIncludes 2 Cables 1520 mm long (5 feet) eachIncludes 2 Cables 1830 mm long (6 feet) eachIncludes 2 Cables 2440 mm long 8 feet) each

Includes 2 Cables 3050 mm long (10 feet) each Cassette-Mounted 2-Way CableInterlock


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Miscellaneous Accessories

Table 5.46 Miscellaneous Accessories

Description

Levering DeviceLifting Yoke (3-pole Narrow Frame)

Lifting Yoke (3-pole Standard Frame)Lifting Yoke (3-pole Double Frame)Lifting Yoke (4-pole Narrow Frame)

Lifting Yoke (4-pole Standard Frame)Lifting Yoke (4-pole Double Frame)

Roll on Floor Lifting Device

Magnum Trip Unit TesterTriplink Cable

Door Escutcheon and Gasket KitIP54 Door Cover Kit

Non-Automatic Circuit Breaker CoverCassette Rejection Bracket Kit

Capacitor Unit for Breaker Capacitor Trip

Mmint MODBUS TranslatorDigital Relay Accessory Module

Catalog Number

None Required8651C91G098651C91G028651C91G058651C91G108651C91G078651C91G086727D63H20

MTST15720B59G01

MDESMDESC

MTUNACIMCELLREJBKContact C-H

MMINTDRAM

Kit Contents/Accessory Function

Special levering device not required. Use 10 mm socket and drive setFits 3-pole Narrow Frame Circuit Breaker

Fits 3-pole Standard Frame Circuit BreakerFits 3-pole Double Frame Circuit Breaker Fits 4-pole Narrow Frame Circuit Breaker

Fits 4-pole Standard Frame Circuit BreakerFits 4-pole Double Frame Circuit Breaker

Lifts breaker fitted with lofting yoke from above

Hand-Held Tester fpr Digitrip 220, 520, 520M and 520MC Trip UnitsDownloads Trip Unit Settings from one Digitrip RMS 1150 Trip Unit to another

Escutcheon, Gasket and Mounting HardwareIP54 Cover, Gasket and Mounting Hardware

Cover Trip Unit Cavity on Non-Automatic BreakersCircuit Breaker Cell Rejection Bracket Kit (Cassette Mounting)

Enclosure Mounted AC Capacitor Unit for circuit breaker Capacitor Trip

Translates INCOM for up to 32 Communicating Trip Units to ModbusUsed with Accessory Bus on Digitrip 1150 Trip Unit

Breaker Maintenance and Handling

Breaker Trip Unit Test Devices and Accessories

Miscellaneous Breaker and Enclosure Accessories

Peripheral Devices


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Appendix

Engineering Data Reference Chart

Sections

Breaker Instruction Book

Trip Unit IL

Breaker Accessoryand Field Option Kit

Cassette Accessoryand Field Option Kit

Miscellaneous Accessories

Renewal Parts Kit

Reference #

2C12060H052C13060H03

70C1036H0370C1037H0470C1080H02

2C14766H012C14761H012C14762H012C14760H012C13769H022C13769H012C12769H012C12769H022C12865H012A11851H102C12895H012C13761H012C13763H012C13760H012C13766H012C13795H032C13820H012C14763H012C14764H012C14765H012C12894H012C14767H012C13764H01

2C12093H012C12093H022C13768H012C13765H012C13860H012C14691H012C14694H012C14694H022C14696H01

2C12766H012C12767H012C12768H012C12860H012C12861H012C12862H012C12863H012C12864H012C13790H012C14695H012C12896H012C12896H022C12898H01

2C12760H012C12761H012C12762H012C12763H012C12764H012C12866H012C12867H012C13762H012C12061H022C12897H012C12899H012C13767H012C15860H01

Product Description

Magnum DS Fixed/Drawout Power Circuit Breakers (ANSI)Magnum Fixed/Drawout Power Circuit Breakers (IEC)

Digitrip Models 1150 & 1150i Trip Units (includes 1150P)Digitrip Models 220, 220+, 520, 520i, 520Mi, 520MC & 520MCi Trip UnitsGround Fault Alarm Power Supply

Breaker Auxiliary Switch Field Option KitBreaker Spring Release Field Option KitBreaker Shunt Trip Field Option KitBreaker Undervoltage Release Field Option KitBreaker Motor Operator Field Option Kit (For Narrow, Standard & Double Frame)Breaker Motor Operator Field Option Kit (For Standard & Double Frame Only)Latch Check Switch for use with Spring Release Field Option KitLatch Check Switch (accessible) Field Option KitCharging Handle Replacement KitCenter Pull Handle Replacement Parts KitPushbutton Cover Field Option KitBreaker Kirk Key Interlock Provision Field Option KitBreaker Castell Key Interlock Provision Field Option KitBreaker Ronis Key Interlock Provision Field Option KitBreaker Pop-out Trip Indicator with Switches Field Option KitFixed Breaker Secondary Terminal Mounting Bracket Field Option KitFront Mounted Standard Terminal Field Option Kit800-1600A Vertical Adapter Field Option Kit2000A Vertical Adapter Field Option Kit3000-3200A Vertical Adapter Field Option KitDoor Escutcheon with Gasket Field Option KitBreaker Operations Counter Field Option KitNon-Auto Breaker Trip Unit Cover Field Option Kit

3 Pole ANSI Cassette Shutters Field Option Kit4 Pole ANSI Cassette Shutters Field Option KitIEC 800-3200A Cassette Shutters Field Option KitIEC 4000-6300A Cassette Shutters Field Option KitCassette Universal Bus Adapter Field Option KitCassette Key Interlock Provision Field Option KitANSI Cassette Cell Switch Field Option KitIEC Cassette Cell Switch Field Option KitCassette CT Shorting & Jumper Block Field Option Kit

Fixed Breaker 2-Way Cable Interlock Field Option KitFixed Breaker 2-Way Rod Interlock Field Option KitDrawout Breaker 2-Way Rod Interlock Field Option KitDrawout Breaker 2-Way Cable Interlock Field Option KitDrawout Breaker MI31 3-Way Cable Interlock Field Option KitFixed Breaker MI31 3-Way Cable Interlock Field Option KitDrawout Breaker MI32 3-Way Cable Interlock Field Option KitFixed Breaker MI32 3-Way Cable Interlock Field Option KitSecondary Wiring Kit to 6 Point Termination Block Field Option Kit6 Point Terminal Block Field Option KitDrawout Breaker 1100V Arc Hood Barrier Field Option KitFixed Breaker 1100V Arc Hood Barrier Field Option KitFixed Breaker Arc Hood Barrier Field Option Kit

Breaker Stationary Contact Replacement KitBreaker Moving Contact Replacement KitBreaker Secondary Disconnect Block Replacement KitBreaker Terminal Block Replacement KitBreaker Accessory Tray Replacement KitLevering Mechanism Assembly Replacement Kit Levering Door Mechanism Assembly Replacement Kit Breaker Current Sensor & Rating Plug Replacement KitHatchet Assembly Replacement Parts KitDrawout 2500-3200A Breaker Vertical Adapter Replacement KitDrawout Breaker Standard/Double Frame Rejection Bracket Replacement KitCassette Standard/Double Frame Rejection Bracket Replacement KitDrawout Breaker Narrow Frame Rejection Bracket Replacement Kit

For Use with or Installation of

Installation, Operation and MaintenaceInstallation, Operation and Maintenace

2A11799G40 - G442A11799G01 - G337802C83G01/G02

2A117962A117922A117912A117932A11794G41 - G462A11794G22 - G352C13797G012C13797G022A108922A118512C128902C12891G012C12891G022C12891G031B934912C137942A108202A11795G01, G11 & G412A11795G02, G12 & G422A11795G48, G49, G53, G54, G56 G582C128932A108902A11797

2C129982C129981B930961B930982A106701B930911B930902C137931B93094

2A11857G02, 2A11858G012A11856G02, 2A11859G022A11856G01, 2A11859G012A11857G01, 2A118582A11857G03/G07, 2A118582A11857G04/G08, 2A118582A11857G05, 2A118582A11857G06, 2A118581B930931B930922A10800G022A10800G122C12898

2A108962C127612A108992A108542A108912A108552A108942A117982A118552A11795G48-49 & G53-542A11893G01, G021B92695G01, G02 & G512A11893G92-G94


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Appendix


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Appendix


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Appendix


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Appendix

Connection Diagram Digitrip 220/520/520i/520M/520Mi/520MC/520MCi (100-3200A)


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Appendix

Connection Diagram Digitrip 520/520i/520M/520Mi/520MC/520MCi (5000A ABCABC Phasing)


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Appendix

Connection Diagram Digitrip 520/520i/520M/520Mi/520MC/520MCi (5000A AABBCC Phasing)


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Appendix

Connection Diagram Digitrip 1150, 1150i (100-3200A)

16.

JUM

PERI

NG B

-3 (N

POW

) TO

B-7

TERM

INAL

WIL

L EL

IMIN

ATE

RE

VERS

E PO

WER

CON

DITI

ON.

SEE

NOTE

16


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Appendix

Connection Diagram Digitrip 1150/1150i (5000A ABCABC Phasing)

15.

JUM

PERI

NG B

-3 (N

POW

) TO

B-7

TERM

INAL

WIL

L EL

IMIN

ATE

RE

VERS

E PO

WER

CON

DITI

ON.

SEE

NOTE

15


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Appendix

Connection Diagram Digitrip 1150/1150i (5000A AABBCC Phasing)

15.

JUM

PERI

NG B

-3 (N

POW

) TO

B-7

TERM

INAL

WIL

L EL

IMIN

ATE

RE

VERS

E PO

WER

CON

DITI

ON.

SEE

NOTE

15


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Appendix

Narrow Frame Cassette Overall Dimensions (3 and 4 pole, 800-2000A)

NO

TE

S:

1. I

MP

ER

IAL

DIM

EN

SIO

NM

S A

RE

IN

CH

ES

ON

TO

P, M

ET

RIC

D

IME

NS

ION

S A

RE

[m

m]

BO

TT

OM

.2.

ALL

DIM

EN

SIO

NS

AR

E R

EF

ER

EN

CE

ON

LY.


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Appendix

Standard Frame Cassette Overall Dimensions (3 and 4 pole, 800-3200A)


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Appendix

Double Wide Frame Cassette Overall Dimensions (3 pole, 4000-6300A)


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Appendix

Double Wide Frame Cassette Overall Dimensions (4 pole, 4000-6300A)


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Appendix

Narrow Frame Fixed Overall Dimensions (3 and 4 pole, 800-2000A)


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Appendix

Standard Frame Fixed Overall Dimensions (3 and 4 pole, 800-1600A)


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Appendix

Standard Frame Fixed Overall Dimensions (3 and 4 pole, 2000A)


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Appendix

Standard Frame Fixed Overall Dimensions (3 and 4 pole, 3200A)


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Appendix

Double Wide Frame Fixed Overall Dimensions (3 and 4 pole, 4000-6300A)


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catalogo magnum iec

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