Series C J-Frame Molded Case Circuit Breakers Time Current Curves

Time Current Curves TD012033EN Effective April 2014 Series C J-Frame 70-250 amperes, 240-600 volts

Contents Description Page Catalog Number Selection ...... 3.

JT Thermal/Magnetic Trip Unit JDB, JD, HJD 2, 3 and 4 Poles ...... SC-4247-87D . . . . . 4. JDC 2, 3 and 4 Poles ...... SC-4248-87C . . . . . 5.

Let-Through Curves JDC, FDC, KDC, and LDC---240V ...... AD-29-166A . . . . . 6. JDC, FDC, KDC, and LDC---480V ...... AD-29-166B . . . . . 7. JDC, FDC, KDC, and LDC---600V ...... AD-29-166C . . . . . 8.

Eaton Leakage Module Curves UL Earth Leakage Curve ELFD, JD, and KD, three- and four-pole, 110-480V ...... TC01212005E . . . . 9. IEC Earth Leakage Curve ELFD, JD, and KD, three- and four-pole, 110-480V ...... TC01212006E . . . . 10.

Note: Time/Current characteristic curves for Series C J-frame circuit breakers--voltages shown in curve headings are maximum at which the breaker may be applied . Interrupting capacity of inidvidual breaker is tabulated on each curve .

Note: The following curves are UL489 Listed for use in North America . The following circuit breakers are derived from Eaton, Westinghouse, or Cutler-Hammer history .

Time Current Curves are engineering reference documents for application and coordination purposes only. For field testing molded case circuit breakers, refer to NEMA AB 4 guidelines. Time Current Curves TD012033EN Series C Effective April 2014 J-Frame

Notee: Unless noted below, all curves remain unchanged from their prior revision . Revision Curve Number Page Date

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Catalog Number Selection

This information is presented only as an aid to understanding catalog numbers . It is not to be used to build catalog numbers for circuit breakers or trip units .

Table 1. Trip Unit

JT 3 250 T

Trip Unit Type Number of Poles Trip Unit Rating/ JT= Thermal-magnetic Plug Ampere Rating 2 = 2 poles Sufﬁx 070 3 = 3 poles 090 T = Trip unit thermal-magnetic ﬁxed thermal 4 = 4 poles 100 adj. magnetic o 125 V = 50 C calibration (thermal-magnetic 150 trip units only) 175 200 225 250

Table 2. Circuit Breaker/Frame

JD 3 250 F

Circuit Breaker/ Frame Type Number of Poles Circuit Breaker/Frame Ampere Rating JDB 2 = 2 poles Sufﬁx JD 070 3 = 3 poles C = Non-aluminum terminals HJD 090 4 = 4 poles F = Frame only JDC 100 125 K = High magnetic molded case switch o 150 V = 50 C calibration 175 W = Without terminals 200 X = Load side terminals only 225 Y = Line side terminals only 250

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Series C types JDB, JD, HJD equiped with type JT thermal-magnetic trip unit

Circuit Breaker Time/Current Curves Series C J-Frame Circuit Breakers Equipped With Type JT Thermal-Magnetic Trip Unit 10000 s Catalog Types: JDB, JD, HJD Circuit Breakers, 2, 3 and 4 Poles .

2 hour For application and coordination purposes only . Thermal calibration based on 40°C ambient, cold start . 5000 Connected with four (4) feet of rated wire (60°C up to 125 amps, 75°C above 125 amps) per terminal . r Tested in open air with current in all poles . Instantaneous calibration based on single-pole tests . 1 hou Maximum Voltage: 600V, AC (50/60 Hz) 250V, DC

Breaker Rating Rated Instantaneous Trip Amperes Amperes (I ) (See Figure Below) 1000 n maximum single pole trip 70-250 500 to 1000% of trip unit rating (DC values are approximately 40% higher) times at 25°C (note 1)

500 70 - 250A Interrupting Rating UL/CSA rms Sym. kA, 50/60 Hz kA, DC Breaker Type 240V 480V 600V 250V JDB 65 35 18 10 LD 65 35 18 10 HJD 100 65 35 22 100 IEC 60947-2 rms Sym. kA, 50/60 Hz kA, DC maximum Breaker Type 240V, (Ue) 380V, (Ue) 415, (Ue) 250V, (Ue)

1 minute 50 JDB 65 35 35 10 minimum JD 65 35 35 10 HJD 100 65 65 22

Note:

1 Single pole data at 25°C based on NEMA Procedures for verifying performance of molded case circuit breakers . 10

Amps (I n) 40°C Cat. No. TIME IN SECONDS

Typical Individual Pole Trip Unit 1 Adjustments Nameplate 10% 20%

± 0.5 ± 5X 10X

adjustable magnetic trip

0.1

0.05

maximum interrupting time

interrupting rating 0.01 determines end of curve

0.005

0.001 10 50 100 500 1,000 5,000 10,000 50,000 100,000

CURRENT IN PERCENT OF BREAKER TRIP UNIT RATING (I n)

Figure 1. JDB, JD, HJD 2, 3 and 4 Poles - Curve Number SC-4247-87D, June 2006

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Series C type JDC equipped with type JT thermal-magnetic trip unit

Circuit Breaker Time/Current Curves Series C J-Frame Circuit Breakers 10000 Equipped With Type JT Thermal-Magnetic Trip Unit Catalog Types: JDC Circuit Breakers, 2, 3 and 4 Poles . 2 hour

5000 For application and coordination purposes only . Thermal calibration based on 40°C ambient, cold start . Connected with four (4) feet of rated wire (60°C up to 125 amps, 75°C above 125 amps) per terminal . Tested in open air with current in all poles . Instantaneous calibration based on single-pole tests . 1 hour Maximum Voltage: 600V, AC (50/60 Hz) 250V, DC

Breaker Rating Rated Instantaneous Trip Amperes 1000 Amperes (I ) (See Figure Below) maximum single pole trip n times at 25°C (note 1) 70-250 500 to 1000% of trip unit rating (DC values are approximately 40% higher)

500 70 - 250A Interrupting Rating UL/CSA rms Sym. kA, 50/60 Hz kA, DC Breaker Type 240V 480V 600V 250V JDC 200 100 35 22

IEC 60947-2 rms Sym. kA, 50/60 Hz kA, DC 100 Breaker Type 240V, (Ue) 380V, (Ue) 415, (Ue) 250V, (Ue) maximum JDC 200 100 100 22

1 minute minimum Note:

1 Single pole data at 25°C based on NEMA Procedures (AB 4) for verifying performance of molded case circuit breakers .

Amps (In) 40°C Cat. No. TIME IN SECONDS

Typical Individual Pole Trip Unit Adjustments 1 Nameplate % % 10 20

± 0.5 ± 5X 10X

adjustable magnetic trip

0.1

0.05

maximum interrupting time

600V AC interrupting rating 480V AC determines end of curve 0.01

240V AC 0.005

0.001 10 50 100 500 1,000 5,000 10,000 50,000 100,000

CURRENT IN PERCENT OF BREAKER TRIP UNIT RATING (In)

Figure 2. JDC 2, 3 and 4 Poles - Curve Number SC-4248-87C, June 2006

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1000 kA

500 kA 0 5 00 5 4 2 22 3 3 3600 3 C C C C D D D D J K L F

100 kA

50 kA

10 kA Available Short Circuit Current, kA rms

5 kA

1 kA 000 000 000 , , , 000 000 000 , , , 000 00 000 000 , 10 , , 5 100 5 1 10 Peak Let-Through I2t, A2 sec

Figure 3. Peak Let-Through I2t Curve — 240 V - Curve Number AD-29-166A

1000 kA

500 kA 0 00 225 4 25 3 3 3600 3 C C C C D D D D F K J L

100 kA

50 kA

10 kA Available Short Circuit Current, kA rms

5 kA e l st 1

cyc

for /2

Ip .

ymm avail. s

1 kA kA 0 kA 1 5 kA 00 kA 50 kA 1 1

Peak Let-Through Current, kA

Figure 4. Peak Let-Through Current Curve — 240 V - Curve Number AD-29-166A

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1000 kA

500 kA 5 0 00 5 4 22 2 3 3600 3 3 C C C C D D D D L K F J

100 kA

50 kA

10 kA Available Short Circuit Current, kA rms

5 kA

1 kA 000 , 000 000 , , 000 000 , , 000 , 00 000 000 , , 5 100 10 5 1 Peak Let-Through I2t, A2 sec

Figure 5. Peak Let-Through I2t Curve — 480 V - Curve Number AD-29-166B

1000 kA

500 kA 00 4 3 3600 C C D D L K 100 kA

50 kA 0 25 3 C D J

10 kA 225 3 Available Short Circuit Current, kA rms

e 5 kA l C st D 1 F cyc

for /2

1 Ip .

ymm avail. s

1 kA A A A A A k 0 k 1 k 5 5 10 k 100 k Peak Let-Through Current, kA

Figure 6. Peak Let-Through Current — 480 V - Curve Number AD-29-166B

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100 kA 00 4 3 3600 C C D D L K 50 kA 0 5 1 3 C D F 0 5

2 10 kA 3 C D J

5 kA Available Short Circuit Current, kA rms

1 kA 000 , 000 000 , , 000 000 , , 000 00 , 000 000 , , 5 100 5 1 10 Peak Let-Through I2t, A2 sec

Figure 7. Peak Let-Through I2t — 600 V - Curve Number AD-29-166C

100 kA 00 4 3600 3 C C D D L K 50 kA 0 5 1 3 C D F

0 10 kA 25 3 C D J

5 kA Available Short Circuit Current, kA rms e l cyc

/2 . 1 ymm avail. Ip for 1st s

1 kA A A A A A k k k

k k

0 0 1 5 00 5 1 1 Peak Let-Through Current, kA

Figure 8. Peak Let-Through Current — 600 V - Curve Number AD-29-166C

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100

1 min Circuit Breaker Time/Current Curves Earth Leakage Circuit Breaker - UL

1 .ELFD, JD, and KD earth leakage module 3 and 4 pole . 110 - 480V 60hz . 2 . For application and coordination purposes only . -20C to 50C ambient . 3 . Total clearing times include the response time of the earth leakage module, opening time of the breaker, and interruption of current . 4 . Pickup setting of .03A only available with instantaneous time delay .

10 *Curves do not apply to single phase applications .

2.0

1 1.0

0.5 0.5 TIME Time (s) Delay Setting (s) 0.2

0.1 0.15

0.05

INST

0.01

0.005

0.001 0.5 1 1.5 2 3 4 5 10

EARTH LEAKAGE CURRENT IN MULTIPLES OF I n AVAILABLE PICKUP SETTINGS - 0.03 (4), 0.1, 0.3, 0.5, 1, 3, 10, 30A.

Ambient Temp. (250C)

Figure 9. UL Series C K-Frame Circuit breaker Earth Leakage Module, 110-480V - Curve Number TC01212005E, March 2003

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100

1 min Circuit Breaker Time/Current Curves Earth Leakage Circuit Breaker - IEC

1 .ELFD, JD, and KD earth leakage module 3 and 4 pole . *110 - 480V 50hz . 2 . For application and coordination purposes only . -20C to 50C ambient . 3 . Total clearing times include the response time of the earth leakage module, opening time of the breaker, and interruption of current . 4 . Pickup setting of .03A only available with instantaneous time delay .

10 *Curves do not apply to single phase applications .

1.0

1 0.5

0.5 0.25 TIME (s) Time Delay 0.1 Setting (s)

0.1 0.06

0.05

INST

0.01

0.005

0.001 0.5 1 1.5 2 3 4 5 10

EARTH LEAKAGE CURRENT IN MULTIPLES OF I n AVAILABLE PICKUP SETTINGS - 0.03 (4), 0.1, 0.3, 0.5, 1, 3, 10, 30A. Ambient Temp. (250C)

Figure 10. IEC Series C K-Frame Circuit breaker Earth Leakage Module, 110-480V - Curve Number TC01212006E, March 2003

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