)

)

. '

Time-Current Curves •

Gi:S-5000G

Limitamp Control CR7160

Motor Overload and Phase-Overcurrent Protection

Types 082824-34, CR124K and CR224C Thermal Overload Relays and DS3655 (2sllrak Solid-state Relay Coordinated Type EJ-2

Current-limiting Power Fuses

COORDINATION OF LIMITAMP CONTROL

Overcurrent protective devices in Limitamp control consist of (1) thermal-overload relays that provide protection up to approx­imately ten times motor full-load current and/or (2) � three-phase overload relays (solid-state) and (3) current-limiting power fuses that provide protection from that point to rated in:errupting capacity of the equipment.

To coordinate operation of Limitamp control with protective devices closer to the source in the power system, it is neces­sary to know how the control devices operate and to identify their specific characteristics.

Overload Relays Overload relays provided in Limitamp control have inverse­

time characteristics and are ambient compensated. Limitamp control utilizes either the DS2824-34 inductive-type relay or the CR124K or CR224C thermal-type relays, or the DS3655 � overload relay. These relays, operating from current transformers in the control equipment, carry current proportional to the motor-circuit current. When motor overloads occur, the relay operates to open the power contactor. The time required for operation varies inversely with the magnitude of the overload.

As can be seen from curve GES-7200 enclosed, DS2824-34 relays are supplied in three operating types: fast, medium, and slow. The CR124K and CR224C relays have operating charac­tenstics as seen on curves GES-7201 A and GES-7202. The DS3655 � relay has three settings; "RUN" for. ultimate trip,

"STALL" for lock-rotor trip, and "'TRIM" on ultimate trip. See curve GES-7007. The particular relay or type furnished on a given installation will depend on the anticipated motor-starting time. �is not field adjustable.

Ultimate tripping current for DS2824-34, CR124K, and CR224C relays is 90 to 100% of relay current rating in a 40 C ambient. Tripping is approached at some time beyond the 1000 seconds illustrated on the curve. Relay current settings can be readily adjusted over a range of 90 to 110 percent of the coil rating for the DS2824-34 relay and 85 to 115 percent of nominal heater rating for the CR124K and CR224C relays.

For relay data, see GEH-2487 for CR124K, GEH-1199 for DS2824-34, and GEH-3243 for CR224C. See GEH-4449 for (2gli(ili relay data.

Power Fuses Power fuses are EJ-2 current-limiting type. Coordination be­

tween fuses and thermal-overload relays is such that the latter open the contactor on all overcurrents that would otherwise melt the fuses in 100 seconds or longer and the fuses interrupt all overcurrents of magnitude greater than intended for contactor interruption.

The power fuse curves included in this folder show the char­acteristics for the minimum melting time and the maximum total-clearing time for fuses commonly used in Limitamp.

For more complete data on EJ-2 fuses, see GET 2664.

GENERAL fj ELECTRIC www . El

ectric

alPar

tMan

uals

. com

www . El

ectric

alPar

tMan

uals

. com

100 90

80 70

80

50

40

30

.03

.02

.01

-- -- -- -- ·- -

D D D D

D

D

D

D

\ \ \ \

- - - - - - - - --

I I I I I I '1 I I I I Lll I I I II

.5 .6 .7 .8 .9 1 2 3 4 5 6 7 8 9 10

GENERAL {j; ELECTRIC

Current Rating 2 to 5 amperes

Time Range 5 to 30 seconds at 6 times

rms current setting

Frequency Rating 60 Hertz

.;,

MULTIPLES OF TRIP CURRENT SETTING

20 -- 30 -- 40 50 80 70 8090g

I I I I I Ill I I Ill I

20 30 40 so 80 10 80 sog -

MULTIPLES OF TRIP CURRENT SETTING

THREE-PHASE OVERLOAD RELAy

lod lrak TM 1 Type DS3655A 11703 and DS3655A 118A

Time-curren t Curves

l·B4 (2M) GENERAL ELECTRIC CO., DR IVE SYSTEMS DEPARTMENT, SALEM, VA. 24153

'

GES-70078

Adjustments With Test Set

Time: Continuous from 5 to 30 seconds @ 6X

Current Setting: Continuous from 2 to 5 amperes

Overload: ±.15% of current setting Note: All ad(ustments preset at factory

---

i

1000 900

800 700

600

500

400

300

03

02

01

www . El

ectric

alPar

tMan

uals

. com

www . El

ectric

alPar

tMan

uals

. com

•

J • 5

MULTIPLES OF CURRENT SETTING

[5 .I .7 .I .I I 2 3 4 5 I 7 I 110 20 30 I

� /1 /\ 0 /' 0

/\ 0 /_A 0 /1

(.5 .I .7 .I .I 1 2 3--.--s---• 1 1 110 20 30 I - ----------- --- ···-·-- ... ------ - ------I f.5 .I .7 .I .I 1 2 _ 3_ __ 4 5 1_7 1 ••o 20 3o)

Ll. /l l/\ / VI VA Y.A /l \;? 1/ A v /\ \/,\ y ·\

/\ v"' Y' II\ 400 -

'/ .. \ Y/ \V_.\ v� 300 v -\ '/\ v . " I

.. I

.0 l

I ·•nr=r���r=======�====��r=������== [S .I .l .I .1 1 2 3 4 5 I 1 I t 10 70. _ _1111 f.5 .I .7 .I .1 1 2 3 4 5 I 7 I_ I 10 20 30)

f.5 .I .7 .I .I I 2 3 4 5 I 7 I I 10 20 - ----,Q)

MULTIPLES OF CURRENT SETTING

GENERAL . ELECTRIC THERMAL OVERLOAD RELAY GES-7200

TYPE DS2824-34 S.,eneoles GU-24011

Current Ratings Time-cunent Curves Adjustments

0.71 to ISO Amperes ( Cu"'e' ,how ••loy In«> C ambient ) Current Setting, 90 to 110% of

Frequency Rating Ambient deviation• cauae only � %/ Deg. C Actual Trip Current

60 Hertz change In current 1etting1 higher ombienh de· creaae letting ond lower ombienh Increase aetling.

1-84 (1.5M) GENERAL ELECTRIC CO., DRIVE SYSTEMS DEPARTMENT, SALEM, VA. 24153

I

I

1000 100 100 JOG 600 500

400

300

OJ

IJ

www . El

ectric

alPar

tMan

uals

. com

www . El

ectric

alPar

tMan

uals

. com

100 90 60 70 60

50

40

30

.03

.0 2

u 0 0 0 0

0

0

0

I

5 .6 .7 .6 .9 1 2 3

/ /\ ./\

• , .,

I, 4 5 6 7 6 9 10

II � vl v, ....,

l I • C\

( A

MULTIPLES OF CURRENT RATING a a a a 0 o c a c11 a a � 0 Q Q 000 2 3 4 5 6 7 8 9 10 20 30 40 50 60 706090::! N ... "' . ,.... -·�

20 30 40 50 60 70 80 90 �-1

.�

.�

·- -- -- -- -- ---· .01r.=����7=====�==�==��==�������======��==��=7,������� � .6 .9 1 2 3 4 5 6 7 6 9 10 20 3 ;:1

0 .Q

1 " 2 3 4 s 6 1 8 9 10 20 30 40 50 80 10 aoeog g g o g g g g g g' - f'lt ft � In • ,.... ID -�

MULTIPLES OF CURRENT RAT ING

GENERAL fj ELECTRIC THERMAL OVERLOAD RELAYS

TYPE CR124 GES-7201 A Repla<es G£5-7201

Current Ratings CR124-A2 and CR124K Adjustments 2.0 to 16.3 Amperes Time-current Curves

Current setting: 85 to 115 "'o of

Frequency Rating ( Tripping performance i• not affected by change•) heater current rating. Curves

25 to 60 Hertz in ambient temperature•. Working range -20 C to shown at 100"/.. 60 C for CR124-A2 and -30 C to 80 C for CR124K. ---- ---- ---- ------

6-82 (2M) GENERAL ELECTRIC CO., GENERAL PURPOSE CONTROL DEPT., BLOOMINGTON, IL. 61701

000 800 800

700 600

500

400

300

www . El

ectric

alPar

tMan

uals

. com

www . El

ectric

alPar

tMan

uals

. com

I

1 8 8 7 8 5

a 5 .8 . 1 .8 .9 1

;;; 2 3 4

10 lO I/\ lO ,.\ lO _\

/ \ 4 lO 1\ 1/ A 3 lO 1\ l/\ f /, .o '

. 02 !

.0 15 .8 .7 .8 .9 1 2 3 4 5 I

-GENERAL ��� ELECTRIC

Current Ratings

0.41 to 270 amperes

Frequency Rating

25 to 60 Hertz -

5 8

8

: : �

··. ·-.··,

MULTIPLES OF CURRENT RATING

I· 2 3 4 5 8 7 8 810 20 30 40 50 80 70 8080! 7 8 8 10 20 30 40 so eo 10 8oao!l

Vl 1/ I i/ .l It/\ ,, 1\ l/l

\I

1 8 a 10 20 30 40 50 80 70 8080!1 , .

2 3 4 5 8 7 8 9 10 20 30 40 50.80 7080808 -MULTIPLES OF CURRENT RATING

THERMAL OVERLOAD RELAYS

TYPE CR224 CR224C, D, E, F and G

Time-current Curves

(Curves show relay in 40 C ambient)

8-83 (1M) GENERAl ElECTRIC CO., GENERAl PURPOSE CONTROl DEPT., BlOOMINGTON, ll . 6 170 1

g ... ... g g gggg l ... � .... ... ., • ,... • •!!

.I

.I

.I

g .. .. .......... �1 .. � 0 0 0 00 N ... 1ft CD ,.._ e -�

GES-7202

Adjustments

Current setting: 90 to 110%

of heater current rating. Curves

shown at 100%.

000 BOO 800 700 600 500 400 300

www . El

ectric

alPar

tMan

uals

. com

www . El

ectric

alPar

tMan

uals

. com

.u

.o

.o

. : �

·._ ... t·

MULTIPLE OF COIL WET SETTING

1.1 .1 .7 .8 .8 1 2 3 4 5 I 7 I I 1 0 2 0 3 0 .fo- 50----.oJD eoiO!] �-1 .7 .1 .1 1 2 3 4 5 I 7 I 1 1

_0__

20 3D 4D 50 ID 7DIDIO!I 000 ' 800

800 ' 700 \ 800 \ 500 ' 400 __l 1\

_} \ 300 \ 1 \ \ a 3

2

I

1-5 .• . 7 .•. 8 1 2 3 4 5 • 7 • • 10 20 30 40 50 ID 70 IDID!_

IRed ISiowl Fluidl I·' .• . 7 .•. 8 1 2

MULTIPLE OF COIL WET SETTING

GENERAL . ELECTRIC MAGNETIC OVERLOAD RELAY

Continuous Current Rating CR 124Y 2 to 650 Amperes

Inverse Time-Current Curves Power Voltage Rating 600 volts ac-dc maximum

Frequency Rating De 60/50 Hertz

3 4 5 I 1 a a 10 20 30 40 50 10 70 1010!1 (Blue (fast) Fluid)

GES-7203A

Adjustments I I Wet ac current pickup: 50 to 150%

of continuous current rating De current pickup: 93% of ac current pickup.

Dry pickup value is 105% of wet pickup value. (Used as guide in adjusting wet pickup value)

--1/83 (3M)

GENERAL ELECTRIC CO., GENERAL PURPOSE CONTROL DEPT., BLOOMINGTON, ll. 61701

1000

800

800

700

800

500

400

300

3

:z

www . El

ectric

alPar

tMan

uals

. com

www . El

ectric

alPar

tMan

uals

. com

too-5 8 7 a 9 to

� 90 80 70

80

50

40

30

.03

.02

.01

B B

B

B

I

I

I

5 8 7 8 I 10

20 --

20

30 40 50 60 70 80 90�

-

30 40 50 80 70 80108 -

' '

.. ... ,

C> C> N

CURRENT IN AMPERES C> C> ..

0 0 0 Cl 0 00 0 0 0 0 0 00 .. tn CO,....CDGI�

C> 0 0 N

C> 0 C> ...

These fuses are designed to interrupt short-circuit currents having less than 100-second fuse melting times. Protective devices in series must interrupt low:r overcurrents.

' " I. ' \ \ \ \ \ \ ' \ \ ' ' ' '

' C> .. 0 C> 0 0 0 00 C> C> .. Cl � .. 0 0 0 0 0 .. .. ... ... ... • ,.... • cao Cl .. - N ...

CURRENT IN AMPERES

\ ,

C> C> 0 0 0 0 .... "'

'\

o o a oo 0 0 000 0 0 000 co,....eaao

1\ � \ ' ' ' \ l

C> .. .. 0 0 00 .. .. .. 0 0 00 C> Cl .. 0 0 OCt .... "' ... ,.... • • o -

I N I

.. .. Cl .. .. .. .. .. ... ...

0 0 Q 0 0 00 g g g g!i!ig o o o oOCSo .,. an • ,.... • • a

1000 900 800 700

600

500

400

300

03

02

.. g 8 0 0 CIO 0 0 000 .. .. .. 0 000 .. .. .. 0 000 .... "' . ,.... --�

GENERAL . ELECTRIC CURRENT-LIMITING MOTOR STARTER POWER FUSE GES-8132

5-82 13M)

Current Ratings

Limit os indicated

Frequency Rating

60 Hertz

- -----

EJ-2 2.54 & 5.08 KV MAX Model Numbers

Size D (2R to 12R) and DD ( 18R, 24R) 2.54 kV � Minimum Melting Time-current Curves LCB5 __ LJD5 __

LCL3 __ LJN3 __

MCB5 __ MJD5 __

(At 25 C with no initial load) MCL3 __ MJN3 __

GENERAL ELECTRIC CO., DISTRIBUTION TRANSFORMER BUSINESS DEP1, HICKORY, N.C. 28603

www . El

ectric

alPar

tMan

uals

. com

www . El

ectric

alPar

tMan

uals

. com

10 8 8 7 60

50

40

30

.oo

.02

.01

IU 5 • 7 8 8 10

0 0 0 0 0

0

D

5 I 7 I 8 10

20 30 --

--

20 30

r;, ;.",·

"' 40 50 80 70 8090� - ----

40 50 10 70 1010 g -

'--- -

0 �

CURRENT IN AMPERES

0 0 ..

0 �

0 0 0 000 0 0 0 0 00 ., . ,... .. -�

0 0 �

0 0 �

These fuses are designed to interrupt short-circuit currents having less than tOO-second fuse melting times. Protective devices in series must interrupt lower overcurrents.

J_j Ll J l -' 1\ \ \ \

� § � g g g g gg an • ,... • ·� g

N

CURRENT IN AMPERES

\ , �

0 0 0 M

'

0 0 0 0 0 00 a a a a o a a

� � = �: f:§

\ ' 1\ \ ,

\ \ \ \ ' 0 0 0 ...

' \ �

0 0 0 0 00 0 0 0 0 00 0 0 0 0 00 tn CO ,...CIDCD �

� \

0 0 0 0 N

0 0 0 0 N

0 g 0 ..,

0 0 0 0 ...

0 g

0 0 0 "' ...

� 0 0 0 000 CI O O OOCI a a o ooo 0 0 0 0 00 ., .a ,... ••o

-1000 800 800 700 800

500

0 0 0 000 0 0 0 0 00 o o a o oo

0 0 Q 0 00 11ft Cl ,... CID GICI

.I

.0

400

300

;/"""

2

GENERAL fj ELECTRIC CURRENT-LIMITING MOTOR STARTER POWER FUSE

GES-8133 EJ-2 2.54 & 5.08 KV MAX. Current Ratings

Size D (2R to 12R) and DO ( 18R, 24R) Model Numbers

Limit as indicated � 5.08 kV

Maximum Total-clearing Time-current Curves LCB5 __ LJD5 __

Frequency Rating LCL3 __ LJN3 __

60 Hertz MCB5 __ MJD5 __

(At 25 C with no initial load) MCL3 __ MJN3 __

5-82 (3M) GENERAL ELECTRIC CO., DISTRIBUTION TRANSFORMER BUSINESS DEP1, HICKORY, N.C. 28603

www . El

ectric

alPar

tMan

uals

. com

www . El

ectric

alPar

tMan

uals

. com

100 90 80

70

80

50

40

30

.03

.02

.01

Cl 5 6 7 8 9 10 20

0 30 40 50 60 70 8090!'!

0 0 0

0

0

0 -, .

)

5 6 7 8 9 10 20 30 40 50 so 10 8osog -

GENERAL $� ELECTRIC

Current Rating

No continuous rating

L.....-

::r 'i, .. :_· .... ! .

.

SYMMETRICAL RMS CURRENT IN AMPERES

0 0 N

0 ::: g g �g g gg

..,. 1ft m ..... cam a

0 0 0 N

These fuses are designed to interrupt short-circuit cur en s h vir a es h�l

g ..

0 a ...

a o o o ooo 0 0 0 0 0 00 .... "' . ,.... . -�

50-s cond

I g 0 ..

'

0 0 0 ...

g 0 ...

0 0 0 ....

! SYMMETRICAL RMS CURRENT IN AMPERES

CURRENT -LIMITING MOTOR-STARTING FUSE

S KV Bolt-on Mounting With Indicator/striker

Minimum Melting Time-current Curves

(At 60 Hertz and 25C with no initial load)

a a o oo a 0 0 0 000 o a a o a a

1ft m ,... com�

' \ a o o ooo 0 0 0 000 o o o a oo M'I .,... • • CI

l-84i2M) GENERAL ElECTRIC CO., GENERAL PURPOSE CONTROL DEPT., MEBANE, N.C. 27302

\ ' \ ,\

0 0 0 0 N

\\ 0 0 0 0 ..

0 a

0 0 ...

0 0 0 .. ...

0 a

0 0 ....

0 0 0 0 ....

GES-8124

g g g g gg a o a a o a a o o oo a 1ft ca r--cocno

-1000 900 800

700

600

500

400

300

03

02

01 0 o a ooo 0 o o a oo 0 Cl 0 0 CIO 0 0 0 C) 00 "' .. ..... --�

www . El

ectric

alPar

tMan

uals

. com

www . El

ectric

alPar

tMan

uals

. com

100 90 80 70 80 50 40

30

.03

.02

.01

.. 5 8 7 • 8 10 20 30 40 50 80 70 1080::!

� D D D

D

D

D

D

5 I 7 I I 10 20 30 40 50 10 70 1010 =

GENERA L .J ELECTRIC

Current Rating

No continuous rating

; � .... ,

SYMMETRICAL RMS CURRENT IN AMPERES

2 .. .. .. ! § i!! !! I

These fuses are designed to interrupt short-circuit currents having less than 50-second fuse melting time. Protective devices .in series must interrupt lo';"er overcurre�ts.

' '

I � 8 g :;: ... 5l 88!!!8 ,... ••a

.. .. ... g g g g g gIg .. ., .... ., . ,... . ·- I § g g 8 g g §8 .. � .., I ,.. • •!

SYMMETRICAL RMS CURRENT IN AMPERES

CURRENT-LIMITING MOTOR-STARTING FUSE

7.2 KV Bolt-on Mounting With Indicator/striker

Minimum Melting Time-current Cu-rves

(At 60 Hertz and 25C with no initial laad)

12-74 (SM) GENERAl ElECTRIC CO., INDUSTRIAl CONTROl PRODUCTS DEPT., SAlEM, VA. 24153

g g ! !

I 8 !

g g g g g gg ! ! ! ! : !!

1000 800 100 700 800 500 400

300

03

02

8 g 8 g g gg·01 .. g .... .. 0£! $ ., : �a:!

GES-8125

www . El

ectric

alPar

tMan

uals

. com

www . El

ectric

alPar

tMan

uals

. com

1o·· uu 9 8

7

6

5

4

3

.u3

.02

• 0 1

00 00 00

00

DO DO

DO

5

5 & 7 8 9 10 20

6 7 8 9 1D 20

0 30 40 50 60 70 8090�

30 40 50 60 70 8090g -

GENERAL . ELECTRIC

Current Rating No continuous rating

� �

:;, ·.···,

SYMMETRICAL RMS CURRENT IN AMPERES

0 0 N

C> C> ..

0 0 0 0 Cl 00 C> 0 0 O C>OC> .... .n, ca ,...CDGDCI

C> C>

::: C>

g ...

These fuses are designed to interrupt short-circuit currents having less than' 50-second fuse melting time. Protective devices in series must interrupt lower overcurrents.

Q 0 0 0 0 00 0 0 0 0 Q 00 a o o o o oo ..- .n CD ,....c:omo

1 1 ' \ \ \ � \ \ \ \ \ � \ \ ' \ \ ,:\\ \ ' \

.. :::

.. C> ...

0 .. C> C> .. 0 .... "' "'

0 0 00 0 0 00 ,... -·�

C> C>

::: C> C> C> ...

0 0 0 0 000 0 0 0 0 0 00 Cl 0 0 0 0 00 .., ., .,.....en�

SYMMETRICAL RMS CURRENT IN AMPERES

CURRENT -LIMITING MOTOR-STARTING FUSE

SKV Bolt-on Mounting With Indicator/striker

Maximum Total-clearing Time-current Curves

(At 60 Hertz and 55 C)

1·84(2M) GENERAL ELECTRIC CO., GENERAL PURPOSE CONTROL DEPT., MEBANE, N.C. 27302

\

C> C> C> 0 N

\ \ \

\ \ 0 .. .. .. N

\

C> 0 g ...

C> 0 0 0 0 0 00 0 0 0 CtOCIO 0 0 0 0 0 00 0 0 0 0 0 00 • ..., ca ,....c:oca.-

1000 800 800

700

600

500

400

300

3

12

' '� .... 0 C> g ...

0 0 0 0 000 0 0 0 c:t Q 00 0 0 0 0 0 00 0 0 0 0 000 .... II) CD ,...CDGa�

GES-8126

www . El

ectric

alPar

tMan

uals

. com

www . El

ectric

alPar

tMan

uals

. com

10 9 8

7

6

50

40

30

.03

.02

.01

5 II 7 8 9 10 0 0 0 0

0

D

D

D

20 30 0

40 50 60 70 80 90 �

5 6 7 8 9 10 20 30 40 50 60708090g -

GENERAL . ELECTRIC

Current Rating No continuous rating

: � � ';, · ....... ,.

SYMMETRICAL RMS CURRENT IN AMPERES 0 0 N

0 0 ..

0 CJ o a ooo o o o o a ao _,. Vl CG "CIDCJ')O

0 0 0 N

C> 0 0 ..,

These fuses are designed to interrupt short-circuit currents having less than 50-second fuse melting time. Protectiv e devices in series must interrupt lower overcurrents.

I I I I I I I I, ,I I I. I I I 11

"" 0 ...

"" .. ..,

C)

C) ...

ll 0 0 0 0 ao 0 0 0 0 00 In . ...... �

\ g C) ...

g 0 ...

""

�

SYMMETRICAL RMS CURRENT IN AMPERES

CURRENT-LIMITING MOTOR-STARTING FUSE

7.2 KV Bolt-on Mounting With Indicator/striker

Maximum Total-clearing Time-current Curves

(At 60 Hertz and 55 C)

C> C> 0 �

a a o ooo 0 0 0 0 00 o a o a oo It) CD ,.... CIDCDQ

0 0 0 0 00 0 0 0 0 00 0 0 0 0 00 In ta ,....CIDCR!2

1·84(2M) GENERAL ELECTRIC CO., GENERAL PURPOSE CONTROL DEPT., MEBANE, N.C. 27302

0 0 C> 0 N

"" 0 g ...

C> C> C> C) ..,

C)

C)

C) 0 ...

C)

C)

C)

C) ...

g C)

�

GES-8127

0 0 0 0 00 0 0 0 0 00 a o o ooo o a o o a a ., ca "camo

0 0 0 0 00 0 0 QOOCI o a o o oo :; � �:i:�!

-�

-�

.0

1000 800 800

700

600

500

400

300

3

2

www . El

ectric

alPar

tMan

uals

. com

www . El

ectric

alPar

tMan

uals

. com

1oo- 5 90 80

I I I

70 80 50

I

I

400

300 I

.03

.02

.01

• 7 • • � - C>

N C> ...

o a a o ooa ...,. "' ca ,.....m2

s a 1 a • 10 20 30 40 so eo 10 ao so�

-------GENERAL . ELECTRIC

Current Ratings

Limit as indicated

Frequency Rating

60 Hertz

---------

' � � ..... :1

�

CURRENT IN AMPERES

8 1i g g gggg .. :If ., - ..... . -� 8 !i::

These fuses are designed to interrupt short· circuit currents having less than 1 OO·second fuse melting times. Protective devices in series must interrupt lower overcurrents.

,

1\ \ \ \ ' '

\ !i:: = 2 Q 0 CICIOQ ;;: : g � g 18

C>

8 .. ... CURRENT IN AMPERES

CURRENT INTERRUPTER

SKV 218A4293P __ RB

8 �

l '

\ C>

g

Bolt on Mounting with Indicator/Striker

8 C> C> C> C>C>C> a a o o a a

C> C> CO COC>C>C> ,._ 1ft ca ,.... • • �

" ' ' \ � �

\. .\ \

\ \ ' � �

C> C> co co � �

\ ' \ \

Q 0 0 Q Q 8 8 Z8 8 CD ,.._ • Gl�

Maximum Total-clearing Time-current Curves

(At 25 C with no initial load)

12-78 (6M) GENERAL ELECTRIC CO., INDUSTRIAL CONTROL DEPT., ME BANE, N.C. 27302

�

§ C> ...

\ I

8 8 ...

I

GES-8128

8 8 C> C> co co . "'

C> C> co ...

! !

8 8 8 88 o a o oo a o oc::ta ca ,.... ca cno

.. 1000 900 800 700 BOO

500

0 Q c co O O OOCI a o ooo i � ��!

400

300

.03

02

01

www . El

ectric

alPar

tMan

uals

. com

www . El

ectric

alPar

tMan

uals

. com

10M 5 6 7 8 9 � u

9 8

7

6

50

40

30

.03

0 0 0

0

0

0

l

0 ..

o o o c ocoa M "'lit r.n ca ,....cocna

' : �

• ..... t

Cl Cl ..

CURRENT IN AMPERES 0 a a a aooO

o o o o o ooo C"t ...,. 11'1 CD ,....CDCfl �

g 0 N

These fuses are designed to interrupt short· circuit currents having less than 1 00-second fuse melting times. Protective devices in series must interrupt lower overcurrents·

\ \ t\ ' \ \ 1\

o a o o o aoo 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 r9 • Ln � ,.... CDO)O

-

1\ ' � � \ \ � \ l 1\ .02

.01 ·5 6 7 8 9 10 20 30 40 50 60 70 80 908

GENERAL fj ELECTRIC

Current Ratings Limit as indicated

Frequency Rating 60 Hertz

C> C> ..

0 0 0 0 0 000 a o o o o o oo M .. r.n CA ,.._CDCD �

' 1\

, �

0 C> C> ..

CURRENT IN AMPERES

1\ � � � 0 0 0 0 0 0 0 0

o a a o aooo 0 0 O O O aO Q M ...,. r.n CD ,...cacno

CURRENT-LIMITING MOTOR STARTER POWER FUSE

2.54 & 5.08 KV MAX 218A4293P __ RB

Bolt on Mounting with Indicator/Striker

Minimum Melting Time-current Curves

(At 25 C with no initial load) J.tl4 (2M) GENERAl ElECTRIC CO., GENERAl PURPOSE CONTROl DEPT., MEBANE, N.C. 27302

\ 0 C> C> Cl ..

8 0 0 N

0

g 0 ...

g g g g g g gg 0 0 C) 0 0 0 0 0 0 0 0 0 0 0 0 0 M • �n ua r- oocno

1000 900 BOO

700

600

500

400

300

03

o o o c ooo· 0 0 0 0 0 C) C)•

o o o o ooa 0 0 0 0 000 ...,. ., a:t ,...cama

2

GES-8129

i

www . El

ectric

alPar

tMan

uals

. com

www . El

ectric

alPar

tMan

uals

. com