magnecraft latch section 7

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7 R e l a y s - E n e r g y C o n s e r v i n g

S e c t i o n

www.magnecraft.com 847-441-2540

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Magnecraf t Solut ion Guide 105A Magnecraf t Solut ion Guide 105A

755785

711

303 Series

385

Latching, Sequence and Impulse Relays – Application Data

Energy Conservation RelaysIn many applications it is important for the customer to conserve electrical energy. One approach to energy conservation in an electrical system is to use relays that do not require constant power to maintain contact closure.

“Latching relay” is a generic term that is used to describe a relay that maintains its contact position after the control power has been removed. Latching relays allow a customer to control a circuit by simply providing a single pulse to the relay control circuit. Latching relays are also desirable when the customer needs to have a relay that maintains its position during an interruption of power.

There are three main types of Latching relays. Magnetic latching, Mechanical Latching and Impulse Sequencing.

Magnetic Latching RelaysMagnetic Latching relays require one pulse of coil power to move their contacts in one direction, and another, redirected pulse to move them back. Repeated pulses from the same input have no effect. Magnetic Latching relays are useful in applications where interrupted power should not be able to transition the contacts.

Magnetic Latching relays can have either single or dual coils. On a single coil device, the relay will operate in one direction when power is applied with one polarity, and will reset when the polarity is reversed. On a dual coil device, when polarized voltage is applied to the reset coil the contacts will transition. AC controlled magnetic latch relays have single coils that employ steering diodes to differentiate between operate and reset commands.

Mechanical Latching RelaysMechanical latching relays use a locking mechanism to hold their contacts in their last set position until commanded to change state, usually by means of energizing a second coil. Since the relay does not rely on a magnet, the locking strength will not degrade over time or weaken during thermal cycling. The contacts will remain locked in the directed position until the opposing coil has been energized. Packaging machinery that places several units into a single container would be a good example.

Impulse RelaysImpulse relays are a form of latching relay that transfers the contacts with each pulse. Many impulse relays are made up of a magnetic latch relay and a solid state steering circuit that, upon application of power, determines which position the relay is in and energizes the opposite coil. The contacts transfer and hold that position when power is removed. When reenergized, the contacts transfer again and hold that position, and so on. In order to transfer the contacts, one simply provides a single unidirectional pulse. There is no need to redirect the control pulse or reverse the polarity.

Impulse relays can be used as wear equalizers. They are well suited for applications such as turning a single device on or off from one or more locations with a single momentary switch or push button at each station. For example, a conveyor could be started and/or stopped from multiple locations by means of a single button at each position.

7/2

Magnecraf t Solut ion Guide 105A

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INDUSTRIALAUTOMATION

PACKINGMACHINES

PUMPINGMACHINES COMPRESSORS

INDUSTRIALFANS

INDUSTRIALAPPLIANCES


Alternating Relay – Application Data

Applications:

712 Alternating RelayIn many industrial pumping applications, two identical pumps are used for the same job. A standby unit is available in case the first pump fails. However, a completely idle pump might deteriorate and provide no safety margin. Alternating relays prevent this by assuring that both pumps get equal run time.

The Model 712 Series Alternating Relay is designed for duplex pumping systems where it is desirable to equalize pump run time. The solid state alternating circuit drives an internal electromechanical relay. A continuous power source and control switch is required.

The control switch (float, pressure or other isolated contact) is connected as shown in the respective wiring diagrams. Each time the control switch is opened the output contacts will change status. Indicator lights on the case show the internal relay status. Setting the top toggle switch to the “center position” alternates the load; while setting the switch to “Load 1” or “Load 2” will lock the relay in the respected position, preventing alternation.

The alternating relay approach isn’t limited to pumping applications. The control switches could be thermostats or pressure switches, and the loads could be fans or compressors.

7/3

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1.40(35.6)

1.54(39.1)

2.63(66.8)

AA1

7

11

14

4

12

1

BA2

921

24

6

22

3

.187 QUICK CONNECTS

CONTACTS7 & 4

7 & 1

CLOSED9 & 6

9 & 3

INDICATING LEDS

IECNEMA

+ –

UL RecognizedFile No. E43641

UL USCUL Listed When Used

With Magnecraft Sockets.

711 Impulse Sequencing Relay/DPDT 12 Amp Rating

LED IndicatesClosed Contact

Optional Flangeand DIN Adapter

Mounting

The 711 Impulse Sequencing relay is an alternating relay used for load sharing or toggling ON/OFF of the load. Uni-directional momentary pulses cause the contacts to transfer from one side to the other. There is no need to redirect the polarity of the input in order to change and maintain states.

WIRING DIAGRAM

Standard Blade Style Socket Mounting Configuration

Units

AV

ResistiveResistive

HPHPmA

VV

VAW

(Resistive)

msV(rms)V(rms)V(rms)

°C°Cg-ng-n

grams

711XBXDPDT

Silver Alloy12300

12A @ 240V 50/60Hz12A @ 28V

1/3 @ 120 VAC1/2 @ 240 VAC

100 @ 5VDC (.5W)

12….120, 50/60 Hz12….110

85% to 110%80% to 110%

1.81.815%10%

100,00010,000,000

3515005001500

UL-40…+85-40…+55

3, 10 - 55 Hz10

IP 40110

% of Nominal

Operations @ Rated CurrentUnpowered

Between coil and contactBetween polesBetween contacts

Standard versionStorageOperationOperational

Contact Characteristics Number and type of ContactsContact materialsThermal (Carrying) CurrentMaximum Switching VoltageSwitching Current @ Voltage

Minimum Switching Requirement

Coil CharacteristicsVoltage Range

Operating Range

Average consumption

Drop-out voltage threshold

Performance CharacteristicsElectrical Life (UL508)Mechanical LifeOperating time (response time)Dielectric strength

EnvironmentProduct certificationsAmbient air temperaturearound the deviceVibration resistanceShock resistanceDegree of protectionWeight

General Specifications (UL 508)

~

~~~~

~~~

7/4


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2.63(66.8)

(80)3.14

(26)1.03

(81)3.18

(91)3.6

0.40(10)

Other mating sockets see Section 2: 70-124-1, 70124-2, 70178-1, 70-178-2

16-711C1Section 3, p.14-16

16-711C4Section 3, p.14-16

711 Relay with the 70-463-1 Socket

BOLD-FACED PART NUMBERS ARE NORMALLY STOCKED


Coil Resistance

70 Ohms220 Ohms880 Ohms

5700 Ohms


5700 Ohms

Part Number(Without LEDs)

711XBXC-12A711XBXC-24A711XBXC-48A711XBXC-120A

711XBXC-12D711XBXC-24D711XBXC-48D711XBXC-110D

Part Number(With LEDs)

711XBXCL-12A711XBXCL-24A

711XBXCL-48A711XBXCL-120A

711XBXCL-12D711XBXCL-24D711XBXCL-48D711XBXCL-110D

Nominal Voltage

AC Operated12 VAC 50/60 HZ24 VAC 50/60 HZ48 VAC 50/60 HZ120 VAC 50/60 HZ

DC Operated12 VDC24 VDC48 VDC110 VDC

Standard Part Numbers

70-463-1SOCKET

16-1351Metal Hold-Down ClipSee Section 3 p.8-11

RelayAdapters

7/5

SEC

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Load 1 IndicatorIndicates when Load 1 is Active.

Top Toggle SwitchTo Lock Load in Position.

Highest GradeElectronic Components

RoHS Compliant.

Industry Standard 8 or 11 PinOctal Socket CompatibleEasy Installation and Replacement.

Industry Proven PowerRelay Technology12 Amp Relay with Dual Voltage Capability.

UL Listed when 712 Relayand Octal Socket are Combined

UL Approved for Field Replacement.


The Complete System

Solution!

Advantages of the 712 Alternating Relay

The Model 712 series Alternating Relay is designed for duplex pumping systems where it is desirable to equalize pump run time. The solid state alternating circuit drives an internal electromechanical relay. A continuous power source and control switch are required.

The control switch (float, pressure or other isolated contact) is connected between the L1 terminal and the control terminal. Each time the control switch is opened the output contacts will change status. Indicator lights on the case show the internal relay status.

Setting the top toggle switch to Load 1 or Load 2 will lock the relay in position, preventing alternation.

• Offers a “one stop solution” for your pump management system.

• Several configurations available to meet your individual needs.

• Switching capabilities up to 12 amps.

• Two LED status indicators; indicate status of the separate loads independently.

• Dual Voltage Coils eliminate the need to specify AC or DC (AC only for 240 volts).

• Only 36 mm’s wide; does not take up any additional room on the DIN rail.

• Color and appearance designed for high visibility in all environments.

• Engineering availability allows for customized control system solutions. 16-711C1

FLANGE ADAPTER16-711C4

DIN RAIL ADAPTER

See Section 3 p.14-16

7/6


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Top Toggle SwitchTo Lock Load in Position.

Highest GradeElectronic Components

RoHS Compliant.

Industry Standard 8 or 11 PinOctal Socket CompatibleEasy Installation and Replacement.

Industry Proven PowerRelay Technology12 Amp Relay with Dual Voltage Capability.

UL Listed when 712 Relayand Octal Socket are Combined

UL Approved for Field Replacement.


7/7

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(36)1.4

(65)2.6

(2)0.08

0.4(10.2)

(44)1.73

3.3(83.5)


~

% of Nominal

Maximum

Operations @ Rated CurrentUnpoweredBetween coil and contactBetween polesBetween contacts

Standard versionStorageOperation

~~

~~~~

~

~~~

712 Relay with the 70-750DL8-1 Socket




712 Alternating Relay/DPDT, 12 Amp Rating

Optional FlangeMounting

Load 1 Indicator

Load 2 Indicator

Toggle Switch

Proven RelayTechnology

Units

AV

ResistiveResistive

HPHP

Pilot DutymA

VVVVVWV

VDC

sms

(Resistive)

V(rms)

V(rms)V(rms)

°C°C

grams

712XAXCSPDT

Contact Characteristics Number and type of Contacts

Contact materialsThermal (Carrying) CurrentMaximum Switching VoltageCurrent ratingSwitching voltage



Operating Range

Average consumption


Timing CharacteristicsTime Delay - FixedReset TimeAlternating Action

Performance CharacteristicsElectrical Life (UL 508)

Mechanical LifeRated insulation voltage

Dielectric strengthrms voltage

EnvironmentProduct certificationsAmbient air temperaturearound the deviceDegree of protectionWeight

712XBXCDPDT CROSS

WIRED

712XBXCKDPDT, PIN 9 - NO

PIN 11 - NC

712XBXCK1DPDT, PIN 9 - NC

PIN 11 - NOSilver Alloy

12300

12A @ 240V 50/60Hz12A @ 30V

1/3 @ 120 VAC1/2 @ 240 VAC

B300100 @ 5 VDC (.5W)

12, 24, 120240

80% to 110%80% to 110%

1.81.815%10%

0.5100

Release of Control Switch

100,000

10,000,0001500

5001500

UR, CSA, CE-30…+70-20…+60

IP 40120

WHITE

7/8


SEC

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N 7


(96)3.77

(75)2.95

1.1(28)

(37)1.45

(65)2.6

(2)0.08

0.4(10.2)

Other mating sockets see Section 2: 70-750DL11-1, 70-750E8-1, 70-750E11-1, 70-464-1, 70-465-1, 70-169-1, 70-170-1

16-711C1Section 3, p.14-16

16-711C4Section 3, p.14-16

RelayAdapters



Part Number Builder

Series712

Contact ConfigurationXAX = SPDTXBX = DPDT

––

Input Voltage12V = 12 VAC/VDC24V = 24 VAC/VDC

120V = 120 VAC/VDC240V = 240 VAC

Pin OrientationC = 8 OCTAL

CK = 11 PIN OCTAL (PIN 11 NC)CK1 = 11 PIN OCTAL (PIN 11 NO)

Input Voltage

12 VAC/VDC24 VAC/VDC120 VAC/VDC

240 VAC


240 VAC


240 VAC


240 VAC

Contact Configuration

SPDTSPDTSPDTSPDT

DPDTDPDTDPDTDPDT

DPDTDPDTDPDTDPDT

DPDTDPDTDPDTDPDT

Rated Load Current

12 Amps12 Amps12 Amps12 Amps




Part Numbers

8 Pin Octal Base, SPDT712XAXC-12V712XAXC-24V

712XAXC-120V712XAXC-240A

8 Pin Octal Base, DPDT (CROSS WIRED)712XBXC-12V712XBXC-24V

712XBXC-120V712XBXC-240A

11 Pin Octal Base, DPDT (PIN 11 NC)712XBXCK-12V712XBXCK-24V

712XBXCK-120V712XBXCK-240A

11 Pin Octal Base, DPDT (PIN 11 NO)712XBXCK1-12V712XBXCK1-24V

712XBXCK1-120V712XBXCK1-240A

Timing Range

0.5s Fixed0.5s Fixed0.5s Fixed0.5s Fixed





70-750DL8-1SOCKET


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Wiring Diagram:712XBXC (DUPLEX)

8 Pin Octal, with a DPDTContact Configuration.Duplex Capabilities.

V is Input Voltage LA is Load #1 LB is Load #2 S1 is Control Switch #1 S2 is Control Switch #2

If the Top Toggle Switch is in “Alternate” position closing Switch S1 will alternate the loads between LA and LB while switch S2 will only control LA.

If the Top Toggle Switch is in “Lock 1” position Switch S1 will control LA while switch S2 will control LB.

If the Top Toggle Switch is in “Lock 2” position Switch S1 will control LB while switch S2 will control LA.

Duplex (Cross Wired) Functionality: This model operates the same as alternating relays except when both the control Switches S1 and S2 are closed, Load A and Load B energize simultaneously. The DPDT 8-pin, cross wired option, allows extra system load capacity through simultaneous operation of both motors when needed. Relay contacts are not isolated.

WIRING DIAGRAMS

1) 8 PIN OCTAL SPDT

712XAXC

2) 8 PIN OCTAL DPDT CROSSWIRED •3-5 INTERNALLY JUMPERED

712XBXC

4) 11 PIN OCTAL DPDT (K1) •PIN 9 NORMALLY CLOSED •PIN 10 COMMON •PIN 11 NORMALLY OPEN

712XBXCK1

3) 11 PIN OCTAL DPDT (K) •PIN 9 NORMALLY OPEN •PIN 10 COMMON •PIN 11 NORMALLY CLOSED

712XBXCK

1

4

S1

3

LALB8

2

V

5

+ –

1S1

S22

7

LA

LB

8

3 5 6

V+ –

12 3 LA

S1

10

49

11

6 8

LB

V+ –

1

2 3 LA

10

S1

4119

6 8

LB

V+ –

Wiring Diagram:712XAXC

8 Pin Octal, with an SPDTContact Configuration.

V is Input Voltage LA is Load #1 LB is Load #2 S1 is Control Switch #1

If the Top Toggle Switch is in “Alternate” position closing Switch S1 will alternate the loads between LA and LB.

If the Top Toggle Switch is in “Lock 1” position Load LA is ON and Load LB is OFF. Switch S1 is not used in this mode.

If the Top Toggle Switch is in “Lock 2” position Load LA is OFF and Load LB is ON. Switch S1 is not used in this mode.

WIRING DIAGRAMS

1) 8 PIN OCTAL SPDT

712XAXC


712XBXC


712XBXCK1


712XBXCK

1

4

S1

3

LALB8

2

V

5

+ –

1S1

S22

7

LA

LB

8

3 5 6

V+ –

12 3 LA

S1

10

49

11

6 8

LB

V+ –

1

2 3 LA

10

S1

4119

6 8

LB

V+ –

Theory of Operation

A.

B.

7/10


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Wiring Diagram:712XBXCK

11 Pin Octal with a DPDTContact Configuration.Pin 9 is Normally Openand Pin 11 is NormallyClosed.





Wiring Diagram:712XBXCK1

11 Pin Octal with a DPDTContact Configuration.Pin 9 is Normally Closedand Pin 11 is NormallyOpen.





Note: Input voltage must be applied at all times for proper alternation. The use of a solid state control switch for S1 or S2 may not initiate alternation correctly. S1 or S2 voltage must be from the same supply as the unit’s input voltage (see wiring diagrams). Loss of input voltage resets the unit; Load A becomes the lead load for the next operation.

WIRING DIAGRAMS

1) 8 PIN OCTAL SPDT

712XAXC


712XBXC


712XBXCK1


712XBXCK

1

4

S1

3

LALB8

2

V

5

+ –

1S1

S22

7

LA

LB

8

3 5 6

V+ –

12 3 LA

S1

10

49

11

6 8

LB

V+ –

1

2 3 LA

10

S1

4119

6 8

LB

V+ –

WIRING DIAGRAMS

1) 8 PIN OCTAL SPDT

712XAXC


712XBXC


712XBXCK1


712XBXCK

1

4

S1

3

LALB8

2

V

5

+ –

1S1

S22

7

LA

LB

8

3 5 6

V+ –

12 3 LA

S1

10

49

11

6 8

LB

V+ –

1

2 3 LA

10

S1

4119

6 8

LB

V+ –

C.

D.

7/11

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OCTAL BASE LATCHING RELAY

Single Coil (AC) Dual Coil (DC)

2.4(61)

12

3

4

56

7

8

9

1011

11

A1

14

12

2221

24

32

34

A2

31

1.4(35.4)

1.4(34.9)

COMMON

RESET

SET

12

3

4

56

7

8

9

1011

11

A1

14

12

22 2124

32

34

A2

31

SET

RESET

COIL

COIL

2

1IEC

NEMA

755 Magnetic Latching Octal Relay/DPDT, 16 Amp Rating

Single and Dual (DC only) coil available.

16 Amp switching capabilities

High strength magnetic latch helps contacts hold during vibration.

Standard 11 pin octal socket mounting.

Units

AV

ResistiveResistive

HPHP

Pilot DutymA

VV

VAW

(Resistive)


°C°Cg-ng-n

grams

755XBXDPDT

Silver Alloy16300

16A @ 277V 50/60Hz16A @ 28V

1/3 @ 120 VAC1/2 @ 240 VAC

B300100 @ 5 VDC (.5W)

12….240, 50/60 Hz12….125

85% to 110%80% to 110%

21.6415%10%

100,00010,000,000

30250015002500

UL-40…+85-40…+55

3, 10 - 55 Hz10

IP 40170

% of Nominal





~

~~~~

~~~

Contact CharacteristicsNumber and type of ContactsContact materialsThermal (Carrying) CurrentMaximum Switching VoltageSwitching Current @ Voltage



Operating Range

Average consumption







7/12


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OTHER MATTING SOCKETS; 70-750E11-1, 70-750DL11-1, 70-464-1, 70-170-5

(96)

(75)

(92) (96)

(63)

3.77

2.95

3.62 3.77

2.480.74(19)

70-750EL11-1SOCKET

Other mating sockets see Section 2: 70-750E11-1, 70-750DL11-1, 70-464-1, 70-170-5

Part Number Builder




755Series755

XBXContact Configuration

DPDT = XBX

CCoil Options

Single Coil = CDouble Coil = CD

– 240ACoil Voltage

VAC = 6 - 240AVDC = 6 - 125D

Coil Resistance


10,000 Ohms36,000 Ohms

22/22 Ohms90/90 Ohms

350/350 Ohms1,400/1,400 Ohms9,000/9,000 Ohms

Part Number

755XBXC-6A755XBXC-12A

755XBXC-24A755XBXC-120A755XBXC-240A

755XBXCD-6D755XBXCD-12D755XBXCD-24D755XBXCD-48D

755XBXCD-125D

Nominal Voltage

AC Operated (Single Coil)6 VAC 50/60 HZ12 VAC 50/60 HZ24 VAC 50/60 HZ120 VAC 50/60 HZ240 VAC 50/60 HZ

DC Operated (Dual Coil)6 VDC

12 VDC24 VDC48 VDC

110/125 VDC


The 755 Magnetic Latching relay, with an 11 pin octal base, operates by using a pulsed input. A permanent magnet maintains the last position until a redirected second pulse moves the contacts back to the original state.

755 Relay with the 70-750EL11-1 Socket

7/13

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Single Coil (DC) Single Coil (AC)Dual Coil (DC)

A

A1

7

11

14

4121

B

A2

921

24

622

3

RESET

OPERATE

AA1

711

144

121

BA2

921

246

223

831

OPERATE

RESET

COMMONAA1

711

144

121

BA2

921

246223

921

246

RESET

OPERATE

COIL2

COIL 1

IECNEMA

1.53 (38.8)

1.4(35.5)

1.9 (48.4)

0.032(0.812)

0.1875 QUICK CONNECTS

785 Magnetic Latching Square Base Relay/DPDT, 16 Amp Rating

Single and Dual (DC only) coil available.

16 Amp switching capabilities

High strength magnetic latch helps contacts hold during vibration.

Standard .1875 blade style socket mounting.

WIRING DIAGRAMS

Units

AV

ResistiveResistiveResistive

HPHP

Pilot DutymA

VV

VAW

(Resistive)


°C°Cg-ng-n

grams

StandardDPDT

Silver Alloy16300

16A @ 277V 50/60Hz16A @ 120V 50/60Hz

16A @ 28V 1/3 @ 120 VAC1/2 @ 240 VAC

B300100 @ 5 VDC (.5W)

6....240, 50/60 Hz6....125

85% to 110%80% to 110%

31.415%10%

100,0005,000,000

20150015001500

UL, CSA, CE-40...+85-40...+55

3, 10 - 55 Hz10

IP 4087

% of Nominal







Operating Range

Average consumption





~

~~~~

~~~

~

785XBXWHITE




7/14


SEC

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Other mating sockets see Section 2: 70-788EL11-1, 70-124-1, 70-124-2, 70-178-1, 70-178-2

Part Number Builder

(80)3.14

(26)1.03

(74)2.93

0.4(10)

SEC

TIO

N 7




785Series785


DPDT = XBX

CCoil Options

Single Coil = CDouble Coil = CD


VAC = 6 - 240AVDC = 6 - 125D

Coil Resistance


10,000 Ohms40,000 Ohms

22/22 Ohms88/88 Ohms

350/350 Ohms1,400/1,400 Ohms9,000/9,000 Ohms

120 Ohms470 Ohms

10,000 Ohms

Part Number

785XBXC-6A785XBXC-12A

785XBXC-24A785XBXC-120A785XBXC-240A

785XBXCD-6D785XBXCD-12D785XBXCD-24D785XBXCD-48D

785XBXCD-110D

785XBXC-12D785XBXC-24D785XBXC-125D

Nominal Voltage

AC Operated (Single Coil)6 VAC 50/60 HZ12 VAC 50/60 HZ24 VAC 50/60 HZ120 VAC 50/60 HZ240 VAC 50/60 HZ

DC Operated (Dual Coil)6 VDC

12 VDC24 VDC48 VDC

110/125 VDC

DC Operated (Single Coil)12 VDC24 VDC

110/125 VDC


70-463-1SOCKET

The 785 Magnetic Latching relay, with an Industry Standard square base, operates by using a pulsed input. A permanent magnet maintains the last position until a redirected second pulse moves the contacts back to the original state.

7/15

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The Class 303 relay has been designed for 30 Amp loads by using 0.250” quick connect terminals and other proven materials used by Magnecraft power relays. Contact gaps are 2 millimeters wide to meet most standards for creepage and clearance. Its magnetic latching mechanism keeps the contact in the last set position until commanded to change by means of a separate redirected signal. The optional magnetic blowout allows for high voltage DC switching applications.

303 Magnetic Latching Power Relay/DPDT, DPST & SPDT, 30 Amp Rating

Several MountingConditions

0.250”Quick ConnectTerminals

30 Amp SwitchingCapacity

Blow-out Magnets Available for DC Switching.

Units

AV

General PurposeResistive

HPHPA

mA

VV

VAW

(Resistive)


°C°Cg-ng-n

grams

303DPDT, DPST (NO), SPDT (DM-DB)

Silver Alloy30600

30A @ 300V 50/60Hz30A @ 28V

1 @ 120 VAC2 @ 208 VAC to 600 VAC

10 @ 150 VDC (SPDT)5 @ 150 VDC (DPDT, DPST)

100 @ 5 VDC (.5W)

12....24012….125

85% to 110%80% to 110%

21.6415%10%

6,000100,000

30400010002200

UL-40…+85-40…+55

3, 10 - 55 Hz10

IP 40170

% of Nominal





~

~~~~

~~~

~


Current rating with magnetic blowout - Code 69Minimum Switching Requirement


Operating Range

Average consumption


Performance CharacteristicsElectrical Life (UL508)Mechanical LifeOperating time (response time)Rated insulation voltageDielectric strengthrms voltage


7/16


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SIDE FLANGE - CODE C1 TOP FLANGE - CODE C3 DIN MOUNT - CODE C4

Standard Part Numbers BOLD-FACED PART NUMBERS ARE NORMALLY STOCKED


Nominal Voltage

AC Operated 12 VAC 50/60 HZ24 VAC 50/60 HZ120 VAC 50/60 HZ240 VAC 50/60 HZ

DC Operated 12 VDC24 VDC48 VDC

110-125 VDC

Coil Resistance Coil A/B

30/30 Ohms180/180 Ohms

3,800/3,800 Ohms16,000/16,000 Ohms

85/85 Ohms340/340 Ohms

1,360/1,360 Ohms9,000/9,000 Ohms

Part Number DPDT (Side Flange)

303XBXC1-12A303XBXC1-24A

303XBXC1-120A303XBXC1-240A

303XBXC1-12D303XBXC1-24D303XBXC1-48D

303XBXC1-110/125D

Part Number SPDT DM-DB (Side Flange)

303XHXC1-12A303XHXC1-24A303XHXC1-120A303XHXC1-240A

303XHXC1-12D303XHXC1-24D303XHXC1-48D

303XHXC1-110/125D

Part Number Builder303

Series303


DPDT = XBXDPST (NO) = BXX

SPDT (NC - NO, DB - DM) = XHX

Coil OptionsSingle Coil = No Code

Dual Coil = D

240ACoil Voltage

VAC = 12 - 240AVDC = 12 - 125D

C1Cover Options

Side Flange = C1Top Flange = C3DIN Mount = C4

OptionDC Switching

Option, Magnetic Blowout = 69

–

7/17

SEC

TIO

N 7


1.88(47.75)

0.27(6.9) 1.18

(29.97)

1.38(35.1)

1.49(37.9)

35 mm DIN Mount

1.87 (47.5)

0.5(12.7)

TOP FLANGE - CODE C3

0.14(3.6)

0.06(1.57)

1.9(49.6)

1.53(38.9)

1.71(43.5)

2.53(64.3)

0.25" QUICK CONNECTS

0.25" QUICKCONNECTS

1.4 MAX(35.8)

(38.9)1.53 MAX

0.25" QUICK CONNECTSPLUG-IN - CODE C

(49.6)1.9

2

3

1

5

A

4

6

B

(15.9)

0.16(4)

0.625

(9.53)0.38

0.187 MAX(4.75)

0.062 MAX(1.57)

(49.6)2.51.9

(63.5)

2.75(70)

SIDE FLANGE - CODE C1


303 Magnetic Latching Power Relay/DPDT, DPST & SPDT, 3 Amp Rating continued


SIDE FLANGE - CODE C1

Several MountingConditions

30 Amp SwitchingCapacity


7/18


SEC

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N 7


1.88(47.75)

0.27(6.9) 1.18

(29.97)

1.38(35.1)

1.49(37.9)

35 mm DIN Mount

1.87 (47.5)

0.5(12.7)


0.14(3.6)

0.06(1.57)

1.9(49.6)

1.53(38.9)

1.71(43.5)

2.53(64.3)


0.25" QUICKCONNECTS

Single Coil (AC)DPST (N.O.)

A

5

3

1

B

6

4

2

OPERATE

RESET

Single Coil (DC)DPDT

RESET

OPERATE

A

5

3

1

B

6

4

2

Single Coil (DC)DPDT

A BRESET

OPERATE

5

3

1

6

4

2

Dual Coil (DC)SPDT (N.C.-N.O)

DB-DM

A B

RESET

OPERATE

3

1

4

2

5 6

COIL 2

COIL 1

SIDE FLANGE - CODE C1 TOP FLANGE - CODE C3 DIN MOUNT - CODE C4


DIN MOUNT - CODE C4

WIRING DIAGRAMS

7/19

SEC

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N 7


DPDTAC COIL

4PDTAC COIL

6PDTAC COIL

DPDTDC COIL

4PDTDC COIL

6PDTDC COIL

1 2 3

4 5 6

7 8 9

A B

3 2 1

6 5 4

9 8 7

BCOIL B

A

COIL A

A B

BCOIL B

A

COIL A

2

5

7

A B

2

5

7

B COIL B A

COIL A

COIL B

COIL A

COIL B

COIL A

COIL B

COIL A

1 3

4 6

7 9

3 1

6 4

9 7

1 2 3

4 5 6

7 8 9

3 2 1

6 5 4

9 8 7

2

5

7

2

5

7

1 3

4 6

7 9

3 1

6 4

9 7

B AB AB A

A BA BA B


~

~~~~

~~~

~~

385 Mechanical Latching Relay/DPDT to 6PDT, 15 Amp Rating

Easy DIN Rail or Flange Mounting

Switch Up to 6 Poles


The 385 relay is a mechanically latched, electrically reset relay. It can be furnished with two, four or six sets of double throw contacts. The molded, plastic dust cover snaps onto a standard DIN rail as well as incorporating mounting slots for panel mounting. The 385 does not have a dominant coil. If both coils are energized at the same time, all of the normally open contacts close and all normally closed contacts open. If one coil, (Coil A) is de-energized, then the contacts on the opposite side (Coil B) will not transition until coil power is restored to the first coil (A).

Units

AV

ResistiveResistive

HPHPmA

VV

VAW

(Resistive)


°C°Cg-ng-n

grams

385DPDT, 4PDT, 6PDT

Silver Alloy15600

15A @ 240V 50/60Hz10A @ 28V

1/3 @ 120 VAC1/2 @ 208 VAC to 600 VAC

100 @ 5 VDC (.5W)

12….240, 50/60 Hz12….125

85% to 110%80% to 110%

21.6415%10%

100,00010,000,000

25200015001500

UL-40…+85-40…+55

3, 10 - 55 Hz10

IP 4085

% of Nominal

Operations @ Rated Current

UnpoweredBetween coil and contactBetween polesBetween contacts





Operating Range

Average consumption




7/20


SEC

TIO

N 7


Part Number Builder

B A

A

6

9

3

4

1

5

8

2

5

2

7 8

4

7

1

6

3

B

9

A

B

3.04 (77.22)

2.7 (69.01)

1.49(37.85)

1.67(42.42)

2.39(60.8)

1.36(33.02)

1.38 (34.9)

0.187 QUICKCONNECTS



385Series385


DPDT = XBX4PDT = XDX6PDT = XFX

FTemperature Class130° C = None

155° C = F


VAC = 6 - 240AVDC = 6 - 125D

Coil Resistance

30/30 Ohms180/180 Ohms

3,800/3,800 Ohms16,000/16,000 Ohms

85/85 Ohms340/340 Ohms

1,360/1,360 Ohms9,000/9,000 Ohms

Part NumberDPDT

385XBX-12A385XBX-24A385XBX-120A

385XBX-240A

385XBX-12D385XBX-24D385XBX-48D

385XBX-110/125D

Nominal Voltage

AC Operated (Single Coil)12 VAC 50/60 HZ24 VAC 50/60 HZ120 VAC 50/60 HZ240 VAC 50/60 HZ

DC Operated12 VDC24 VDC48 VDC

110-125 VDC

Part Number4PDT

385XDX-12A385XDX-24A

385XDX-120A385XDX-240A

385XDX-12D385XDX-24D385XDX-48D

385XDX-110/125D

Part Number6PDT

385XFX-12A385XFX-24A385XFX-120A385XFX-240A

385XFX-12D385XFX-24D385XFX-48D

385XFX-110/125D


7/21

SEC

TIO

N 7


7 Cross Reference GuideS e c t i o n


www.magnecraft.com 847-441-2540Magnecraf t Solut ion Guide 105A

Midtex619-11B200619-11C200619-11D200619-11F200

ATC DiversifiedARA120ABA

ARA120ADA

Supercedes MagnecraftW250AML2CPX-8W250AML2CPX-9W250AML2CPX-10W250ML2CPX-6W250ML2CPX-7W250ML2CPX-8

Supercedes Magnecraft285XBXC-120A / 388AMLCPX-9285XBXC-240A / 388AMLCPX-10285XBXC-12D / 388MLCPX-6285XBXC-24D / 388MLCPX-7285XBXCD-12D / 388ML2CPX-6285XBXCD-24D / 388ML2CPX-7285XBXCD-110D / 388ML2CPX-8

Potter & BrumfieldKB-17AG-120 or KUB-17A15-120 KB-17DG-12 or KUB-17D15-12 KB-17DG-24 or KUB-17D15-24

Magnecraft711XBXC-12D711XBXC-24D711XBXC-48D711XBXC-110D

Magnecraft712XAXC712XBXC712XBXCK712XBXCK1

Magnecraft755XBXC-24A755XBXC-120A755XBXC-240A755XBXCD-12D755XBXCD-24D755XBXCD-110D

Magnecraft785XBXC-120A785XBXC-240A785XBXC-12D785XBXC-24D785XBXCD-12D785XBXCD-24D785XBXCD-110D

Magnecraft385XDX-120A385XDX-12D385XDX-24D

Potter & BrumfieldKUR-11D15-12KUR-11D15-24KUR-11D15-48KUR-11D15-110

Time Mark261ST-120261DXT-120

261DT-120

IdecRR2KP-U-AC24RR2KP-U-AC120RR2KP-U-AC240RR2KP-U-DC12RR2KP-U-DC24RR2KP-U-DC110

Potter & BrumfieldKUL11A15S-120KUL11A15S-240KUL11D15S-12KUL11D15S-24KUL11D15D-12KUL11D15D-24KUL11D15D-110

SSACARP41SARP43S ARP42S

RelecoC3-R20/AC24VC3-R20/AC120VC3-R20/AC240V

RelecoC5-R20/AC120VC5-R20/AC240VC5-R20/DC12VC5-R20/DC24V

7/22


SEC

TIO

N 7


NTER50-11A10-120R50-11A10-240R50-11D10-12R50-11D10-24R50-11D10-12CR50-11D10-24CR50-11D10-110C

Deltrol20525-8420525-8520531-8120531-8220537-8120537-8220537-84

7/23

SEC

TIO

N 7


www.magnecraft.com 847-441-2540NOTES:

7/24

magnecraft latch section 7

Documents

form of latching relay

magnetic latch relays

main types of latching

single pulse

pulse of coil power

impulse relaysimpulse

single coil device

control power