time current curves td012035en series c l-frame...6 time current curves td012035en effective...

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Time Current Curves TD012035EN Effective December 2015 Contents Description Page Catalog Number Selection 3 Digitrip RMS 310+ Electronic Trip Units LD, HLD, CLD, LDB, HLDB, CLDB, CHLD, CHLB; 600A; 3- and 4-pole; LS and LSG TD012044EN 6 LD, HLD, CLD, LDB, HLDB, CLDB, CHLD, CHLB; 600A; 3- and 4-pole; LSI, LSIG, ALSI, ALSIG TD012043EN 7 Ground Fault Protection TD012045EN 8 LDC, LDCB, CLDC, CLDCB; 600A; 3- and 4-pole; LS and LSG TD012046EN 9 LDC, LDCB, CLDC, CLDCB; 600A; 3- and 4-pole; LSI, LSIG, ALSI and ALSIG TD012047EN 10 Maintenance Mode Setting; ALSI and ALSIG TD012049EN 11 Digitrip RMS 310 Electronic Trip Units LD, HLD, CLD, CHLD; 600A; 3- and 4-pole; LS and LSG SC-5653-93 12 LD, HLD, CLD, CHLD; 600A; 3- and 4-pole; LSI and LSIG SC-5654-93 13 LDC, CLDC; 600A; 3- and 4-pole; LS and LSG SC-5657-93 14 LDC, CLDC; 600A; 3- and 4-pole; LSI and LSIG SC-5658-93 15 Ground Fault Protection SC-5661-93 16 Digitrip OPTIM Electronic Trip Units Long Delay I 2 T, Short Delay I 2 T SC-6323-96 17 Long Delay I 2 T, Short Delay Flat SC-6324-96 18 Long Delay I 4 T, Short Delay Flat SC-6325-96 19 Intantaneous and Override, 125 Amperes SC-6329-96 20 Intantaneous and Override, 250 Amperes SC-6328-96 21 Intantaneous and Override, 400 Amperes SC-6327-96 22 Intantaneous and Override, 600 Amperes SC-6326-96 23 Ground Fault of Ground Fault Alarm Only SC-6330-96 24 LT Thermal/Magnetic Trip Unit LDB, LD, HLD SC-4547-89B 25 LDC SC-5760-94 26 Let-through Curves FDC, JDC, KDC, and LDC---240V AD-29-166A 27 FDC, JDC, KDC, and LDC---480V AD-29-166B 28 FDC, JDC, KDC, and LDC---600V AD-29-166C 29 Note: Time/Current characteristic curves for Series C L-frame circuit breakers--voltages shown in curve headings are maximum at which the breaker may be applied Interrupting capacity of individual 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. Series C L-Frame 125-600A, 240-600V

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Page 1: Time Current Curves TD012035EN Series C L-Frame...6 Time Current Curves TD012035EN Effective December 2015 Series C L-Frame EATON 0.01 2 10 20 30 40 50 60 70 80 90 100 1000 900 800

Time Current Curves TD012035EN Effective December 2015

ContentsDescription Page

Catalog Number Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Digitrip RMS 310+ Electronic Trip Units

LD, HLD, CLD, LDB, HLDB, CLDB, CHLD, CHLB; 600A; 3- and 4-pole; LS and LSG . . . . . TD012044EN . . . . . . . .6LD, HLD, CLD, LDB, HLDB, CLDB, CHLD, CHLB; 600A; 3- and 4-pole; LSI, LSIG, ALSI, ALSIG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TD012043EN . . . . . . . . .7Ground Fault Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TD012045EN . . . . . . . .8LDC, LDCB, CLDC, CLDCB; 600A; 3- and 4-pole; LS and LSG . . . . . . . . . . . . . . . . . . . . . TD012046EN . . . . . . . . .9LDC, LDCB, CLDC, CLDCB; 600A; 3- and 4-pole; LSI, LSIG, ALSI and ALSIG . . . . . . . . . . TD012047EN . . . . . . . .10Maintenance Mode Setting; ALSI and ALSIG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TD012049EN . . . . . . . .11

Digitrip RMS 310 Electronic Trip UnitsLD, HLD, CLD, CHLD; 600A; 3- and 4-pole; LS and LSG . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-5653-93 . . . . . . . .12LD, HLD, CLD, CHLD; 600A; 3- and 4-pole; LSI and LSIG . . . . . . . . . . . . . . . . . . . . . . . . . . SC-5654-93 . . . . . . . .13LDC, CLDC; 600A; 3- and 4-pole; LS and LSG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-5657-93 . . . . . . . .14LDC, CLDC; 600A; 3- and 4-pole; LSI and LSIG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-5658-93 . . . . . . . .15Ground Fault Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-5661-93 . . . . . . . .16

Digitrip OPTIM Electronic Trip UnitsLong Delay I2T, Short Delay I2T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-6323-96 . . . . . . . .17Long Delay I2T, Short Delay Flat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-6324-96 . . . . . . . .18Long Delay I4T, Short Delay Flat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-6325-96 . . . . . . . .19Intantaneous and Override, 125 Amperes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-6329-96 . . . . . . . .20Intantaneous and Override, 250 Amperes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-6328-96 . . . . . . . .21Intantaneous and Override, 400 Amperes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-6327-96 . . . . . . . .22Intantaneous and Override, 600 Amperes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-6326-96 . . . . . . . .23Ground Fault of Ground Fault Alarm Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-6330-96 . . . . . . . .24

LT Thermal/Magnetic Trip Unit

LDB, LD, HLD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-4547-89B . . . . . . .25LDC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-5760-94 . . . . . . . .26

Let-through CurvesFDC, JDC, KDC, and LDC---240V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AD-29-166A . . . . . . . .27FDC, JDC, KDC, and LDC---480V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AD-29-166B . . . . . . . .28FDC, JDC, KDC, and LDC---600V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AD-29-166C . . . . . . . .29

Note:Time/Current characteristic curves for Series C L-frame circuit breakers--voltages shown in curve headings aremaximum at which the breaker may be applied . Interrupting capacity of individual 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.

Series C L-Frame 125-600A, 240-600V

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2

Time Current Curves TD012035ENEffective December 2015

Series CL-Frame

EATON www.eaton.com

otee:N Unless noted below, all curves remain unchanged from their prior revision .

Revision Curve Number Page Date

Changed trip labels on page 5

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3

Time Current Curves TD012035ENEffective December 2015

Series CL-Frame

EATON www.eaton.com

LD 3 600 F

Circuit Breaker/Frame Type

LDBLDHLDLDCCLDCHLDCLDC

Number of Poles

234

= Two-pole= Three-pole= Four-pole

Circuit Breaker/FrameAmpere Rating

300350400450500600

Suffix

CFKVWXY

= Copper terminals= Frame only= High magnetic molded case switch= 500C (thermal-magnetic trip units only)= Without terminals= Load side terminals only= Line side terminals only

Table 4. Circuit Breaker/Frame

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 .

LT 3 400 T

Trip Unit Type

LT Number of Poles

234

= Two-pole= Three-pole= Four-pole

Circuit Breaker/FrameAmpere Rating

300350400450500600

Suffix

T

V

= Trip unit thermal-magnetic fixed thermal adjustable magnetic= 500C calibration (thermal-magnetic trip units only)

= Thermal-magnetic

Table 1. Thermal-Magnetic Trip Unit

LD 3 125 T5 7 W

Circuit Breaker/Frame Type

LDHLDLDCCLDCHLDCLDC

Number of Poles

3 = Three-pole

Trip Model

T5T10

Suffix

W = Without terminals

Trip Type

267

Circuit Breaker/Frame Ampere Rating

125250400600

(Available on Model 1050 only)(Available on Model 1050 only)

= Model 550= Model 1050

= LSI (550 only)= LSIG= LSIA

Table 3. OPTIM Circuit Breaker/Frame

LES 3 600 LS P

Trip Unit Type

LES Number of Poles

34

= Three-pole= Four-pole Trip Unit

Ampere Rating

600

Suffix

P = 100% protected neutral on four-pole trip unit

= ElectronicSuffix

LSLSILSGLSIG

Table 2. Digitrip RMS 310 Trip Unit

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4

Time Current Curves TD012035EN Effective December 2015

Series CL-Frame

EATON www.eaton.com

LD 3 600 F

Performance at 480 VacPoles

34

= Three= Four

Amperes

600

Frame Designation

F

LDHLDLDCCLDCHLDCLDC

= 35 kAIC= 65 kAIC= 100 kAIC= 35 kAIC 100% rated= 65 kAIC 100% rated= 100 kAIC 100% rated

Table 7. LD Frame Only

LES 3 600 LSIG B22ZG

TripUnit Type

LESPoles

34

= Three= Four

Amperes

600

Features

BlankB20B21

B22

ZG

= No feature= High load alarm= Ground fault alarm, with trip= Ground fault alarm, no trip= Zone selective interlocking

Trip Unit

LSLSILSGLSIGALSI

ALSIG

= 310+ Electronic LS= 310+ Electronic LSI= 310+ Electronic LSG= 310+ Electronic LSIG= 310+ Electronic LSI with Maintenance Mode= 310+ Electronic LSIG with Maintenance Mode

Table 6. LD Electronic Trip Unit

LDB 3 600 F T36 B22ZG W

Performance at 480 VacPoles

34

= Three= Four Amperes

600 Features

BlankB20B21

B22

ZG

= No feature= High load alarm= Ground fault alarm, with trip= Ground fault alarm, no trip= Zone selective interlocking

Trip Unit

T33T32T35T36T38T39

= 310+ Electronic LS= 310+ Electronic LSI= 310+ Electronic LSG= 310+ Electronic LSIG= 310+ Electronic LSI with Maintenance Mode= 310+ Electronic LSIG with Maintenance Mode

FrameDesignation

F

LDBHLDBLDCBCLDB

CHLDB

CLDCB

= 35 kAIC= 65 kAIC= 100 kAIC = 35 kAIC100% rated= 65 kAIC100% rated= 100 kAIC100% rated

Terminals

W = No terminals

Table 5. LD Breaker Assembly

Note

1 Maintenance Mode and ZSI are only available with LSI and LSIG trip units .2 B21 and B22 features available only with LSG, LSIG and ALSIG trip units .3 B2x suffixes cannot be combined with other B2x suffixes .4 LSG, LSIG and ALSIG trip units are not available in four-pole breakers with neutral protection .5 Four-pole trip units include fully protected neutral pole; contact Eaton for other four-pole requirements .

1

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5

Time Current Curves TD012035EN Effective December 2015

Series CL-Frame

EATON www.eaton.com

Figure 1. Digitrip 310+ Faceplates

ALSIG (With Maintenance Mode)

LS

LSI

LSG

LSIG

ALSI (With Maintenance Mode)

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6

Time Current Curves TD012035EN Effective December 2015

Series CL-Frame

EATON www.eaton.com

.

.

.

.

.

.

0.01

2

10

20

30

405060708090

100

1000900800700600500400

300

200

2000

3000

400050006000700080009000

10,000

0.02

0.03

0.040.050.060.070.080.09

0.1

0.2

0.3

0.40.50.60.70.80.9

etu

niM 1

sru

oH 2

sd

noce

S ni e

miT

ru

oH 1

Current in Multiples of (Ir)1 2 3 4 5 7 10 20 300.5 0.7

Current in Multiples of (In)Current in Multiples of (Ir)I 2t Trip Style (LS and LSG)

12

1 2 3 4 5 7 10 20 30 40 50 70 100 2 3 4 5 7 10 20 30 40 50 70 1000.5 0.7 12

Available Short DelayPickup Settings

2–8 x Ir ±5%(See Notes 7 and 10)

ApplicationDetermines

End of Curve

InstantaneousOverride

(See Note 10)

I 2t Short Delay(See Note 8)

67 ms

See Note 9

0.01

0.02

0.03

0.040.050.060.070.080.090.1

0.2

0.3

sd

noc

eS

ni e

miT

3

456789

Maximum TotalClearing Time

Minimum TotalClearing Time

1.15

Available Long Delay Time(Seconds +0/–30%):

2*, 4*, 7*, 10, 12, 15*, 20, 24**Shown below at 6x

15

24

1

7

4

2

2 4

3

5

7

8

6

Figure 2. Digitrip 310+ Trip Units (600A), Long Delay Response and Short Delay with I2T Response Curve and Override (LS, LSG) - TD012044EN, October 2014

Digitrip 310+ Circuit Breaker Time/Current Curves (Phase Current)

Series C L-Frame Circuit Breakers (600A)

Catalog Types: LD, HLD, CLD, LDB, HLDB, CLDB, CHLD, CHLDB

Trip Unit Types: 33 (LS), 35 (LSG)

LD, LDB, CLD, CLDB 65 35 25HLD, HLDB, CHLD, CHLDB 100 65 35

Interrupting RatingUL/CSA rms Sym. kA, 50/60 Hz

Breaker Type 240V 480V 600V

Notes:

1 Curve accuracy applies from –20°C to +55°C ambient . For possible continuous ampere derating for ambient above 40°C, refer to Eaton . Temperatures above +88°C cause an over-temperature protection trip .

2 Application frequency is 50/60 Hertz .

3 There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .

4 The right portion of the curve is determined by the interrupting rating of the circuit breaker .

5 The left portion of the curve is shown as a multiple of the Long Delay Setting . (Long Delay Pickup = 115% of Ir) . Range is 110%–120% .

6 Total clearing times shown include the response times of the trip unit, the breaker opening, and the interruption of the current .

7 The Short Delay Pick Up has 7 settings/positions, 2–8 Ir8 Short Delay I2T band has a tolerance of ±15% .

9 Breakpoint back to FLAT response occurs at 8x IR for upper line of the I2T curve .

10 For high fault current levels, an additional fixed instantaneous hardware override is provided at 5620A (Tolerance ±15%) .

A 250AB 300AC 315AD 350AE 400AF 450AG 500AH 600A

Available Sensors Amperes (Ir)/(In) 600A

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7

Time Current Curves TD012035EN Effective December 2015

Series CL-Frame

EATON www.eaton.com

.

.

.

.

.

1 2 3 4 5 7 10 20 300.5 0.7 12

1000900800

2000

3000

50006000700080009000

10,000

30

405060708090

100

700600500400

300

200

4000

etu

niM 1

sru

oH 2

ru

oH 1

0.01

2

0.02

0.03

0.040.050.060.070.080.09

0.1

0.2

0.3

0.40.50.60.70.80.9

3

456789

10

20

sd

noce

S ni e

miT

Maximum TotalClearing Time

1.15

Available Long Delay Time

(Seconds +0/–30%):2*, 4*, 7*, 10, 12, 15*, 20, 24*

*Shown below at 6x

MinimumTotalClearingTime

Available ShortDelay PickupSettings 2–8,

x Ir ±5%(See Note 7)

300 ms(P, Q, R)

120 ms(M, N, O)

Inst.(J, K, L)

1

Current in Multiples of (Ir)

Current in Multiples of (Ir)

Current in Multiples of (In)1 2 3 4 5 7 10 20.5 0.7

Adjustable Flat Trip Style (LSI, LSIG, ALSI, ALSIG)

12 001070504030201743 50.01

0.02

0.03

0.040.050.060.070.080.090.1

0.2

0.3

0.4

sd

noc

eS

ni e

miT

ApplicationDetermines

End of Curve

InstantaneousOverride (See Note 8)

20 30 40 50 70 100

7

2 4

3

5

6

8

2

4

7

15

24

Figure 3. Digitrip 310+ Trip Units (600A), Long Delay Response and Short Delay with Flat Response Curve and Override (LSI, LSIG, ALSI, ALSIG) - TD012043EN, October 2014

Digitrip 310+ Circuit Breaker Time/Current Curves (Phase Current)

Series C L-Frame Circuit Breakers (600A)

Catalog Types: LD, HLD, CLD, LDB, HLDB, CLDB, CHLD, CHLDB

Trip Unit Types: 32 (LSI), 36 (LSIG), 38 (ALSI), and 39 (ALSIG)

Notes:

1 Curve accuracy applies from –20°C to +55°C ambient . For possible continuous ampere derating for ambient above 40°C, refer to Eaton . Temperatures above +88°C cause an over-temperature protection trip .

2 Application frequency is 50/60 Hertz .

3 There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .

4 The right portion of the curve is determined by the interrupting rating of the circuit breaker .

5 The left portion of the curve is shown as a multiple of the Long Delay Setting . (Long Delay) . Range is 110%–120% .

6 Total clearing times shown include the response times of the trip unit, the breaker Pickup = 115% of Ir opening, and the interruption of the current .

7 The Short Delay Pick Up has 7 settings/positions, 2–8 IR8 For high fault current levels, an additional fixed instantaneous hardware override is provided at 5620A (Tolerance ±15%) .

A 250AB 300AC 315AD 350AE 400AF 450AG 500AH 600A

Available Sensors Amperes (Ir)/(In) 600A

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8

Time Current Curves TD012035EN Effective December 2015

Series CL-Frame

EATON www.eaton.com

0.01

2

3

4

56

8

10

20

30

40

5060708090

100

1000900800700600500

400

300

200

0.02

0.03

0.04

0.050.060.070.080.090.1

0.2

0.3

0.40.50.60.70.80.9

1

7

9

2000

3000

4000

50006000700080009000

10,000

etu

niM 1

Ground Current in Multiple of (In)0.1 0.2 0.3 0.4 0.5 0.7 1 2

0.1 0.2 0.3 0.4 0.5 0.7 1 2

Ground Fault Pickup Settings(Tolerance ±10%)

0.4X

0.3X

0.2X 1X0.6X

0.8X

Inst.(J, M, P)

120 ms(K, N, Q)

300 ms(L, O, R)

sd

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Figure 4. Ground Fault Delay Response Curve (LSG, LSIG, ALSIG) - Curve Number TD012045EN

Types LD, LCD, HLD, CLD, CHLD, and CLDC Equipped With Type LES Digitrip RMS 310 Trip Units, Ground Fault Protection

Digitrip 310+ Circuit Breaker Time/Current Curves (Ground Current)

Series C L-Frame Circuit Breakers (600A)

Catalog Types: LD, HLD, CLD, LDB, HLDB, CLDB, CHLD, CHLDB, LDC, LDCB, CLDC, CLDCB

Trip Unit Types: LSG, LSIG, ALSIG

Notes:

Curve accuracy applies from –20°C to +55°C ambient . For possible continuous ampere deratingfor ambient above 40°C, refer to Eaton .

Digitrip RMS 310 trip units are suitable for functional field testing with test kit Cat . No . STK2 .For field testing using primary injection methods, follow NEMA publications

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9

Time Current Curves TD012035EN Effective December 2015

Series CL-Frame

EATON www.eaton.com

.09

.08

.07

.06

.009

.008

.007

.006

.1

600 VAC

480 VAC

240 VAC

Fixed InstantaneousOverride

.01

.001

TIM

E IN

SE

CO

ND

S .02

.03

.04

.05

1 10543 98762 200 50403020 60 70 80 90100

.002

.003

.004

.005

InterruptingRatingDeterminesEnd ofCurve

CURRENT IN KILO AMPERES

.

.

.

.

.

.

0.01

2

10

20

30

405060708090

100

1000900800700600500400

300

200

2000

3000

400050006000700080009000

10,000

0.02

0.03

0.040.050.060.070.080.090.1

0.2

0.3

0.40.50.60.70.80.9

etu

niM 1

sru

oH 2

sd

noce

S ni e

miT

ru

oH 1

Current in Multiples of (Ir)1 2 3 4 5 7 10 20 300.5 0.7

Current in Multiples of (Ir)

12

1 2 3 4 5 7 10 20 30 40 50 70 1000.5 0.7 12

Available Short DelayPickup Settings

2–8 x Ir ±5%(See Notes 7 and 10)

I2t Short Delay(See Note 8)

67 ms

See Note 9

3

456789

Maximum TotalClearing Time

Minimum TotalClearing Time

1.15

Available Long Delay Time(Seconds +0/–30%):

2*, 4*, 7*, 10, 12, 15*, 20, 24**Shown below at 6x

15

24

1

7

4

2

2 4

3

5

7

8

6

Figure 5. Digitrip 310+ Trip Units (600A), Long Delay Response and Short Delay with I2T Response Curve and Override (LS, LSG) - TD012046EN, October 2014

Digitrip 310+ Circuit Breaker Time/Current Curves (Phase Current)

Series C L-Frame Circuit Breakers (600A)

Catalog Types: LDC, LDCB, CLDC, CLDCB (Current Limitting)

Trip Unit Types: 33 (LS), 35 (LSG)

A 250AB 300AC 315AD 350AE 400AF 450AG 500AH 600A

Available Sensors Amperes (Ir)/(In) 600A

Notes:

1 Curve accuracy applies from –20°C to +55°C ambient . For possible continuous ampere derating for ambient above 40°C, refer to Eaton . Temperatures above +88°C cause an over-temperature protection trip .

2 Application frequency is 50/60 Hertz .

3 There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .

4 The right portion of the curve is determined by the interrupting rating of the circuit breaker .

5 The left portion of the curve is shown as a multiple of the Long Delay Setting . (Long Delay Pickup = 115% of Ir) . Range is 110%–120% .

6 Total clearing times shown include the response times of the trip unit, the breaker opening, and the interruption of the current .

7 The Short Delay Pick Up has 7 settings/positions, 2–8 IR8 Short Delay I2T band has a tolerance of ±15% .

9 Breakpoint back to FLAT response occurs at 8x IR for upper line of the I2T curve .

For high fault current levels, an additional fixed instantaneous hardware override is provided at 5620A (Tolerance ±15%) .10

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10

Time Current Curves TD012035EN Effective December 2015

Series CL-Frame

EATON www.eaton.com

.1

.6

.3

.4

.2

.09

.08

.07

.06

.009

.008

.007

.006

1.9.8.7

600 VAC

480 VAC

240 VAC

Fixed InstantaneousOverride

.01

.001

TIM

E IN

SE

CO

ND

S

CURRENT IN KILO AMPERES

.02

.03

.04

.05

1 102 6 7 8 9 20002 03 04 05 60 70 8090100

.002

.003

.004

.005

InterruptingRatingDeterminesEnd ofCurve

.5

3 4 5

.

.

.

.

.

1 2 3 4 5 7 10 20 300.5 0.7 12

1000900800

2000

3000

50006000700080009000

10,000

30

405060708090

100

700600500400

300

200

4000

etu

niM 1

sru

oH 2

ru

oH 1

0.01

2

0.02

0.03

0.040.050.060.070.080.090.1

0.2

0.3

0.40.50.60.70.80.9

3

456789

10

20

sd

noce

S ni e

miT

Maximum TotalClearing Time

1.15

Available Long Delay Time

(Seconds +0/–30%):2*, 4*, 7*, 10, 12, 15*, 20, 24*

*Shown below at 6x

MinimumTotalClearingTime

Available ShortDelay PickupSettings 2–8,

x Ir ±5%(See Note 7)

300 ms(P, Q, R)

120 ms(M, N, O)

Inst.(J, K, L)

1

Current in Multiples of (Ir)

Current in Multiples of (Ir)

1 2 3 4 5 7 100.5 0.7 12 20 30 40 50 70 100

7

2 4

3

5

6

8

2

4

7

15

24

Figure 6. Digitrip 310+ Trip Units (600A), Long Delay Response and Short Delay with Flat Response Curve and Override (LSI, LSIG, ALSI, ALSIG) - TD012047EN, October 2014

Digitrip 310+ Circuit Breaker Time/Current Curves (Phase Current)

Series C L-Frame Circuit Breakers (600A)

Catalog Types: LDC, LDCB, CLDC, CLDCB (Current Limitting)

Trip Unit Types: 32 (LSI), 36 (LSIG), 38 (ALSI), and 39 (ALSIG)

A 250AB 300AC 315AD 350AE 400AF 450AG 500AH 600A

Available Sensors Amperes (Ir)/(In) 600A

Notes:

1 Curve accuracy applies from –20°C to +55°C ambient . For possible continuous ampere derating for ambient above 40°C, refer to Eaton . Temperatures above +88°C cause an over-temperature protection trip .

2 Application frequency is 50/60 Hertz .

3 There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .

4 The right portion of the curve is determined by the interrupting rating of the circuit breaker .

5 The left portion of the curve is shown as a multiple of the Long Delay Setting . (Long Delay) . Range is 110%–120% .

6 Total clearing times shown include the response times of the trip unit, the breaker Pickup = 115% of Ir opening, and the interruption of the current .

7 The Short Delay Pick Up has 7 settings/positions, 2–8 Ir8 For high fault current levels, an additional fixed instantaneous hardware override is provided at 5620A (Tolerance ±15%) .

Page 11: Time Current Curves TD012035EN Series C L-Frame...6 Time Current Curves TD012035EN Effective December 2015 Series C L-Frame EATON 0.01 2 10 20 30 40 50 60 70 80 90 100 1000 900 800

11

Time Current Curves TD012035EN Effective December 2015

Series CL-Frame

EATON www.eaton.com

Current in Multiples of Rating ( )In

.01

2

.02

.03

.04

.05

.06

.07

.08

.09.1

.2

.3

.4

.5

.6

.7

.8

.91

3

4

5

6789

10

1 2 3 4.5 .6 .7 .8 .9 10 20 30 40 505 6 7 8 9

2.5

Maintenance Mode Trip

TIM

EIN

SE

CO

ND

S

Applicationdeterminesend of curve

Figure 7. Maintenance Mode Setting (ALSI, ALSIG) - Curver Number - TD012049EN, October 2014

Digitrip 310+ Circuit Breaker Time/Current Curves

Maintenance Mode Setting

Trip Unit Types: 38 (ALSI) and 39 (ALSIG)

Series C L-Frame Trip Unit Nameplates

Notes:

1 The Maintenance Mode feature must be ENABLED via application of 24 Vdc for these curves to apply . The blue LED is lit when in Maintenance Mode .

2 The end of the curve is determined by the interrupting rating of the circuit breaker .

3 Total clearing times shown include the response times of the trip unit, the breaker opening, and the interruption of the current .

4 Nominal Values (Pickup) (Tolerance is ±15%) 2 .5 x In .

5 The total clearing times shown are conservative and consider the maximum response time of the trip unit, the circuit breaker opening, and the interruption of the current in the worst case conditions such as: maximum rated voltages, single-phase interruption, and minimum power factor . Faster clearing times are possible depending on the specific system conditions .

Contact Eaton for additional information .

Ir = Continuous Current Setting or Rating Plug Value, Is = Current Sensor Frame Rating,In = Rating Plug Value, Ig = Ground Current Pickup Multiplier, Ii = Instantaneous Override Pickup .

Left Side of Breaker

YellowBlack

Blue

Red

24 Vdc

Relay Wiring

NOC

ALSI

ALSIG

Page 12: Time Current Curves TD012035EN Series C L-Frame...6 Time Current Curves TD012035EN Effective December 2015 Series C L-Frame EATON 0.01 2 10 20 30 40 50 60 70 80 90 100 1000 900 800

6X

8X

4X

7X

2X

Long Delay �Minimum TotalClearing Time

Long Delay �Maximum TotalClearing Time

Standard FixedRating Plug

Short DelayPick UpSettings(Tolerance± 10%)

5X

3XCURRENT IN MULTIPLES OF RATING PLUG AMPERES (In)

.5

.5

TIM

E IN

SE

CO

ND

S

10,000

100

50

30

20

10

5

3

2

1

.5

.3

.2

.1

.05

.03

.02

.01

.005

.003

.002

.001

1,000

500

300

200

5,000

3,000

2,000

1 H

OU

R1

MIN

UTE

2 H

OU

RS

201054321.8.6

1.8.6CURRENT IN MULTIPLES OF RATING PLUG AMPERES (In)

.7 .9 6 7 8 9

20105432 6 7 8 9.7 .9

Fixed InstantaneousOverride

10,0

00

.1

.01

1000

5000

4000

3000

2000

20,0

00

.001

SE

CO

ND

S

CURRENT IN AMPS

30,0

00

40,0

00

50,0

00

100,

000

.02

.03

.04

.05

InterruptingRatingDeterminesEnd ofCurve �

1.15

Figure 8. Catalog Types LES3600LS, LES3600LSG, LES4600LS, LES4600LSE, LES4600LSP - Curve Number SC-5653-93, June 2007

Types LD, HLD, CLD, and CHLD Equipped With Type LES Digitrip RMS 310 Trip Units, Types LES3600LS, LES3600LSG, LES4600LS, LES4600LSE, LES4600LSP

Circuit Breaker Time/Current Curves (Phase Current)

Series C L-Frame Circuit Breakers

Equipped With Type LES Digitrip RMS 310 Trip Units

Catalog Types: LES3600LS, LES3600LSG, LES4600LS, LES4600LSE, and LES4600LSP Digitrip RMS 310 Trip Units for use with Circuit Breaker Types LD, HLD, CLD, and CHLD 3 and 4 Poles .

Notes:

Digitrip RMS 310 trip units are suitable for functional field testing with test kit Cat . No . STK2 .For field testing using primary injection methods, follow NEMA AB4 guidelines .

Calibration response in short delay pick-up range is same for 1, 2 or 3 poles in series .

There is a memory effect that can act to shorten the long delay . The memory effect comesinto play if a current above the long delay pick-up value exists for a time and then is clearedby the tripping of a downstream device or the circuit breaker itself . A subsequent overloadwill cause the circuit breaker to trip in shorter time than normal . The amount of time delayreduction is inverse to the amount of time that has elapsed since the previous overload .Approximately five minutes is required between overloads to completely reset the memory .

1 Curve accuracy applies from –20°C to +55°C ambient . For possible continuous ampere derating for ambient above 40°C, refer to Eaton .

2 For high fault current levels a fixed instantaneous override is provided at 5620A . (Tolerance ±15%) .

3 The end of the curve is determined by the interrupting rating of the circuit breaker . See above tabulation .

5 Long Delay Pickup is 115% of In, +/- 5% .

etalpemaN tinU pirT lacipyTemiT yaleD trohS dexiF

Engaged

Remove

Cat.

In

Digitrip RMS 310 Rating Plug

Push to Trip

Short DelayPickup x In

5

732 8

4 6 Digitrip RMS 310Trip Unit40oC Ambient

Test

600 Fixed 6LES600T 1200-4800500 Fixed 6LES500T 1000-4000450 Fixed 6LES450T 900-3600400 Fixed 6LES400T 800-3200350 Fixed 6LES350T 700-2800300 Fixed 6LES300T 600-2400300, 400, 500, 600 Adjustable A6LES600T1 600-4800

Ampere Rating

Available Rating Plugs

Type

Rating Plug Catalog Number

UL/CSA rms Sym. kA, 50/60 Hz

LD, CLD 65 35 25HLD, CHLD 100 65 35

240V 480V 600VBreaker Type

Interrupting Rating

IEC 60947-2 rms Sym. kA, 50/60 Hz

Icu Ics Icu Ics Icu IcsLD, CLD 65 33 40 20 40 20HLD, CHLD 100 50 65 33 65 33

240V 380V 415VBreaker Type

Short DelayPickup RangeAmperes

Utilization Category AUIMP = 8 kV

12 EATON www.eaton.com

Time Current Curves TD012035ENEffective December 2015

Series CL-Frame

Page 13: Time Current Curves TD012035EN Series C L-Frame...6 Time Current Curves TD012035EN Effective December 2015 Series C L-Frame EATON 0.01 2 10 20 30 40 50 60 70 80 90 100 1000 900 800

6X

8X

4X

7X

3X

2X

Standard FixedRating Plug

5X

TIM

E IN

SE

CO

ND

S

10,000

100

50

30

20

10

5

3

2

1

.5

.3

.2

.1

.05

.03

.02

.01

.005

.003

.002

.001

1,000

500

300

200

5,000

3,000

2,000

1 H

OU

R1

MIN

UTE

2 H

OU

RS

CURRENT IN MULTIPLES OF RATING PLUG AMPERES (In)

.5

.5 201054321.8.6

1.8.6

CURRENT IN MULTIPLES OF RATING PLUG AMPERES (In)

.7 .9 6 7 8 9

20105432 6 7 8 9

Short DelayPick UpSettings(Tolerance±10%)

Long Delay �Minimum TotalClearing Time

Long Delay �Maximum TotalClearing Time

.7 .9

Fixed InstantaneousOverride

InterruptingRatingDeterminesEnd ofCurve �

10,0

00

.1

.01

1000

5000

4000

3000

2000

20,0

00

.001

SE

CO

ND

S

30,0

00

40,0

00

50,0

00

100,

000

.02

.03

.04

.05

CURRENT IN AMPERES

200 ms

100 ms

I

300 ms

1.15

Figure 9. Catalog Types LES3600LSI, LES3600LSIG, LES4600LSI, LES4600LSIP - Curve Number SC-5654-93, June 2007

Types LD, HLD, CLD, and CHLD Equipped With Type LES Digitrip RMS 310 Trip Units,Types LES3600LSI, LES3600LSIG, LES4600LSI, LES4600LSIP

Circuit Breaker Time/Current Curves (Phase Current)

Series C L-Frame Circuit Breakers

Equipped With Type LES Digitrip RMS 310 Trip Units

Catalog Types: LES3600LSI, LES3600LSIG, LES4600LSI, and LES4600LSIP Digitrip RMS 310 Trip Units for use with Circuit Breaker Types LD, HLD, CLD, and CHLD 3 and 4 Poles .

Notes:

Digitrip RMS 310 trip units are suitable for functional field testing with test kit Cat . No . STK2 .For field testing using primary injection methods, follow NEMA AB4 guidelines .

Calibration response in short delay pick-up range is same for 1, 2 or 3 poles in series .

There is a memory effect that can act to shorten the long delay . The memory effect comesinto play if a current above the long delay pick-up value exists for a time and then is clearedby the tripping of a downstream device or the circuit breaker itself . A subsequent overloadwill cause the circuit breaker to trip in shorter time than normal . The amount of time delayreduction is inverse to the amount of time that has elapsed since the previous overload .Approximately five minutes is required between overloads to completely reset the memory .

1 Curve accuracy applies from –20°C to +55°C ambient . For possible continuous ampere derating for ambient above 40°C, refer to Eaton .

2 For high fault current levels a fixed instantaneous override is provided at 5620A . (Tolerance ±15%) .

3 The end of the curve is determined by the interrupting rating of the circuit breaker . See above tabulation .

4 Long Delay Pickup is 115% of In, +/- 5% .

etalpemaN tinU pirT lacipyTemiT yaleD trohS elbatsujdA

Engaged

Remove

Cat.

In

Digitrip RMS 310 Rating Plug

Push to TripDigitrip RMS 310Trip Unit40oC Ambient

Test

5

732 8

4 6

Short DelayPickup x In

300

100I

200

TimeMIsec

600 Fixed 6LES600T 1200-4800500 Fixed 6LES500T 1000-4000450 Fixed 6LES450T 900-3600400 Fixed 6LES400T 800-3200350 Fixed 6LES350T 700-2800300 Fixed 6LES300T 600-2400300, 400, 500, 600 Adjustable A6LES600T1 600-4800

Ampere Rating

Available Rating Plugs

Type

Rating Plug Catalog Number

UL/CSA rms Sym. kA, 50/60 Hz

LD, CLD 65 35 25HLD, CHLD 100 65 35

240V 480V 600VBreaker Type

Interrupting Rating

IEC 60947-2 rms Sym. kA, 50/60 Hz

Icu Ics Icu Ics Icu IcsLD, CLD 65 33 40 20 40 20HLD, CHLD 100 50 65 33 65 33

240V 380V 415VBreaker Type

Short DelayPickup RangeAmperes

Utilization Category AUIMP = 8 kV

13EATON www.eaton.com

Time Current Curves TD012035ENEffective December 2015

Series CL-Frame

Page 14: Time Current Curves TD012035EN Series C L-Frame...6 Time Current Curves TD012035EN Effective December 2015 Series C L-Frame EATON 0.01 2 10 20 30 40 50 60 70 80 90 100 1000 900 800

14

Time Current Curves TD012035EN Effective December 2015

Series CL-Frame

EATON www.eaton.com

1

.8

.7

.6

.09

.08

.07

.06

.009

.008

.007

.006

6X

8X

4X

7X

2X

Long DelayMinimum TotalClearing Time

Long DelayMaximum TotalClearing Time

Standard FixedRating Plug

Short DelayPick UpSettings(Tolerance± 10%)

5X

3X

CURRENT IN MULTIPLES OF RATING PLUG AMPERES (In)

.5

.5

TIM

E IN

SE

CO

ND

S

10,000

100

50

30

20

10

5

3

2

1

.5

.3

.2

.1

.05

.03

.02

.01

.005

.003

.002

.001

1,000

500

300

200

5,000

3,000

2,000

1 H

OU

R1

MIN

UTE

2 H

OU

RS

201054321.8.6

1.8.6

CURRENT IN MULTIPLES OF RATING PLUG AMPERES (In)

.7 .9 6 7 8 9

20105432 6 7 8 9.7 .9

.1

.9

600 VAC

480 VAC

240 VAC

Fixed InstantaneousOverride

.01

.001

TIM

E IN

SE

CO

ND

S .02

.03

.04

.05

1 10543 98762 20050403020 60 70 80 90100

.002

.003

.004

.005

InterruptingRatingDeterminesEnd ofCurve

CURRENT IN KILO AMPERES

1.15

Figure 10. Catalog Types LES3600LS, LES3600LSG, LES4600LS, LES4600LSE, LES4600LSP - Curve Number SC-5657-93, June 2007

Types LDC and CLDC Equipped With Type LES Digitrip RMS 310 Trip Units, Types LES3600LS, LES3600LSG, LES4600LS, LES4600LSE, LES4600LSP

Circuit Breaker Time/Current Curves (Phase Current)

Series C L-Frame Circuit Breakers

Equipped With Type LES Digitrip RMS 310 Trip Units

Catalog Types: LES3600LS, LES3600LSG, LES4600LS, LES4600LSE, and LES4600LSPDigitrip RMS 310 Trip Units for use with Circuit Breaker Types LDC and CLDC 3 and 4 Poles .

Notes:

Digitrip RMS 310 trip units are suitable for functional field testing with test kit Cat . No . STK2 .For field testing using primary injection methods, follow NEMA AB4 guidelines .

Calibration response in short delay pick-up range is same for 1, 2 or 3 poles in series .

There is a memory effect that can act to shorten the long delay . The memory effect comesinto play if a current above the long delay pick-up value exists for a time and then is clearedby the tripping of a downstream device or the circuit breaker itself . A subsequent overloadwill cause the circuit breaker to trip in shorter time than normal . The amount of time delayreduction is inverse to the amount of time that has elapsed since the previous overload .Approximately five minutes is required between overloads to completely reset the memory .

1 Curve accuracy applies from –20°C to +55°C ambient . For possible continuous ampere derating for ambient above 40°C, refer to Eaton .

2 For high fault current levels a fixed instantaneous override is provided at 5620A . (Tolerance ±15%) .

3 The end of the curve is determined by the interrupting rating of the circuit breaker . See above tabulation .

4 Long Delay Pickup is 115% of In, +/- 5% .

etalpemaN tinU pirT lacipyTemiT yaleD trohS dexiF

Engaged

Remove

Cat.

In

Digitrip RMS 310 Rating Plug

Push to Trip

Short DelayPickup x In

5

732 8

4 6 Digitrip RMS 310Trip Unit40oC Ambient

Test

600 Fixed 6LES600T 1200-4800500 Fixed 6LES500T 1000-4000450 Fixed 6LES450T 900-3600400 Fixed 6LES400T 800-3200350 Fixed 6LES350T 700-2800300 Fixed 6LES300T 600-2400300, 400, 500, 600 Adjustable A6LES600T1 600-4800

Ampere Rating

Available Rating Plugs

Type

Rating Plug Catalog Number

UL/CSA rms Sym. kA, 50/60 Hz

LDC, CLDC 200 100 50

240V 480V 600VBreaker Type

Interrupting Rating

IEC 60947-2 rms Sym. kA, 50/60 Hz

Icu Ics Icu Ics Icu IcsLDC, CLDC 200 100 100 50 100 50

240V 380V 415VBreaker Type

Short DelayPickup RangeAmperes

Utilization Category AUIMP = 8 kV

Page 15: Time Current Curves TD012035EN Series C L-Frame...6 Time Current Curves TD012035EN Effective December 2015 Series C L-Frame EATON 0.01 2 10 20 30 40 50 60 70 80 90 100 1000 900 800

15

Time Current Curves TD012035EN Effective December 2015

Series CL-Frame

EATON www.eaton.com

.1

Long DelayMaximum TotalClearing Time

Long DelayMinimum TotalClearing Time

.6

.3

.4

.2

.09

.08

.07

.06

.009

.008

.007

.006

1.9.8.7

6X

8X

4X

7X

3X

2X

Standard FixedRating Plug

200 ms

100 ms

I

300 ms

5X

600 VAC

480 VAC

240 VAC

TIM

E IN

SE

CO

ND

S

10,000

100

50

30

20

10

5

3

2

1

.5

.3

.2

.1

.05

.03

.02

.01

.005

.003

.002

.001

1,000

500

300

200

5,000

3,000

2,000

1 H

OU

R1

MIN

UTE

2 H

OU

RS

CURRENT IN MULTIPLES OF RATING PLUG AMPERES (In)

.5

.5 201016. 8.

.8.6

CURRENT IN MULTIPLES OF RATING PLUG AMPERES (In )

.7 .9 6 7 8 9

20

Short DelayPick UpSettings(Tolerance ±10%)

.7 .9

Fixed InstantaneousOverride

.01

.001

TIM

E IN

SE

CO

ND

S

CURRENT IN KILO AMPERES

.02

.03

.04

.05

1 102 6 7 8 9 1 102 6 7 8 9 20002 03 04 05 60 70 80 90100

.002

.003

.004

.005

InterruptingRatingDeterminesEnd ofCurve

.5

2 3 4 5

3 4 5 3 4 5

1.15

Figure 11. Catalog Types LES3600LSI, LES3600LSIG, LES4600LSI, LES4600LSIP - Curve Number SC-5658-93, June 2007

Types LDC and CLDC Equipped With Type LES Digitrip RMS 310 Trip Units, Types LES3600LSI, LES3600LSIG, LES4600LSI, LES4600LSIP

Circuit Breaker Time/Current Curves (Phase Current)

Series C L-Frame Circuit Breakers

Equipped With Type LES Digitrip RMS 310 Trip Units

Catalog Types: LES3600LSI, LES3600LSIG, LES4600LSI, and LES4600LSIP Digitrip RMS 310 Trip Units for use with Circuit Breaker Types LDC and CLDC 3 and 4 Poles .

Notes:

Digitrip RMS 310 trip units are suitable for functional field testing with test kit Cat . No . STK2 .For field testing using primary injection methods, follow NEMA AB4 guidelines .

Calibration response in short delay pick-up range is same for 1, 2 or 3 poles in series .

There is a memory effect that can act to shorten the long delay . The memory effect comesinto play if a current above the long delay pick-up value exists for a time and then is clearedby the tripping of a downstream device or the circuit breaker itself . A subsequent overloadwill cause the circuit breaker to trip in shorter time than normal . The amount of time delayreduction is inverse to the amount of time that has elapsed since the previous overload .Approximately five minutes is required between overloads to completely reset the memory .

1 Curve accuracy applies from –20°C to +55°C ambient . For possible continuous ampere derating for ambient above 40°C, refer to Eaton .

2 For high fault current levels a fixed instantaneous override is provided at 5620A . (Tolerance ±15%) .

3 The end of the curve is determined by the interrupting rating of the circuit breaker . See above tabulation .

4 Long Delay Pickup is 115% of In, +/- 5% .

etalpemaN tinU pirT lacipyTemiT yaleD trohS dexiF

Engaged

Remove

Cat.

In

Digitrip RMS 310 Rating Plug

Push to Trip

Short DelayPickup x In

5

732 8

4 6 Digitrip RMS 310Trip Unit40oC Ambient

Test

600 Fixed 6LES600T 1200-4800500 Fixed 6LES500T 1000-4000450 Fixed 6LES450T 900-3600400 Fixed 6LES400T 800-3200350 Fixed 6LES350T 700-2800300 Fixed 6LES300T 600-2400300, 400, 500, 600 Adjustable A6LES600T1 600-4800

Ampere Rating

Available Rating Plugs

Type

Rating Plug Catalog Number

UL/CSA rms Sym. kA, 50/60 Hz

LDC, CLDC 200 100 50

240V 480V 600VBreaker Type

Interrupting Rating

IEC 60947-2 rms Sym. kA, 50/60 Hz

Icu Ics Icu Ics Icu IcsLDC, CLDC 200 100 100 50 100 50

240V 380V 415VBreaker Type

Short DelayPickup RangeAmperes

Utilization Category AUIMP = 8 kV

Page 16: Time Current Curves TD012035EN Series C L-Frame...6 Time Current Curves TD012035EN Effective December 2015 Series C L-Frame EATON 0.01 2 10 20 30 40 50 60 70 80 90 100 1000 900 800

16

Time Current Curves TD012035EN Effective December 2015

Series CL-Frame

EATON www.eaton.com

Ground Fault PickupSettings(Tolerance ± 10%Except ± 20% on1xIG Setting)

3xI G

1

4xI G

2xI G

1xI G

2 3 4 5 6 7 8 910 100

GROUND CURRENT-AMPERES

TIM

E IN

SE

CO

ND

S

10,000

100

50

30

20

10

5

3

2

1

.5

.3

.2

.1

.05

.03

.02

.01

.005

.003

.002

.001

1,000

500

300

200

5,000

3,000

2,000

1 H

OU

R1

MIN

UTE

2 H

OU

RS

1200

0

GROUND CURRENT - IN MULTIPLES OF Ig = 120A

1200

720

600

480

360

240

120

840

960

1080

5xI G

I

500 ms

300 ms

150 ms

Figure 12. Ground Fault Protection - Curve Number SC-5661-93, June 2007

Types LD, LCD, HLD, CLD, CHLD, and CLDC Equipped With Type LES Digitrip RMS 310 Trip Units, Ground Fault Protection

Circuit Breaker Time/Current Curves (Ground Current)

Series C L-Frame Circuit Breakers

Equipped With Type LES Digitrip RMS 310 Trip Units for Ground Fault Protection

Catalog Types: LES3600LSG and LES3600LSIG Digitrip RMS 310 Trip Units for use withCircuit Breaker Types LD, HLD, LDC, CLD, CHLD, and CLDC .

Engaged

Remove

Cat.

In

Digitrip RMS 310 Rating Plug

Push to TripDigitrip RMS 310Trip Unit40oC Ambient

Test

500

150300

4

21

3 5

Ig = 120A

5

7 3

2 8

4 6

Short DelayPickup x In

I

Ground FaultPickup x Ig

TimeMIsec

300

100I

200

TimeMIsec

Fixed Short Delay Time

Adjustable Short Delay Time

Typical Trip Unit Nameplate

Typical Trip Unit Nameplate

Engaged

Remove

Cat.

In

Digitrip RMS 310 Rating Plug

Push to TripDigitrip RMS 310Trip Unit40oC Ambient

Test

500

150300

4

21

3 5

Ig = 120A

5

7 3

2 8

4 6

Short DelayPickup x In

I

Ground FaultPickup x Ig

TimeMIsec

Notes:

Curve accuracy applies from –20°C to +55°C ambient . For possible continuous ampere derating for ambient above 40°C, refer to Eaton .

Digitrip RMS 310 trip units are suitable for functional field testing with test kit Cat . No . STK2 . For field testing using primary injection methods, follow NEMA publications .

Page 17: Time Current Curves TD012035EN Series C L-Frame...6 Time Current Curves TD012035EN Effective December 2015 Series C L-Frame EATON 0.01 2 10 20 30 40 50 60 70 80 90 100 1000 900 800

17

Time Current Curves TD012035EN Effective December 2015

Series CL-Frame

EATON www.eaton.com

.01 .01

10,000

5,000

3,000

2,000

1,000

500

300

200

100

50

30

20

10

5

3

2

1 11

.5 5.5.

.3 3.3.

.2 2.2.

.1 1.1.

.05 .05

.03 .03

.02 .02

ET

UNI

M 1

RU

OH

1S

RU

OH

2S

DN

OC

ES

NIE

MIT

500

600

700

800

9002 3 20 304 5 6 7 40 50 60 70 80 90 100

100

300

100.8

0.9 1

0.5

0.6

0.7 8 9

20 30 40 50 60 70 80 900.5

2 3 5 6 7 108 9

200

400

CURRENT IN MULTIPLES OF LONG DELAY SETTING I

CURRENT IN MULTIPLES OF LONG DELAY SETTING I

1000

2000

3000

4000

5000

6000

7000

8000

9000

10,0

00

0.8

0.7

0.6

0.9

1

MinimumTotalClearingTime

MaximumTotalClearingTime

AvailableLong DelayTime SettingsShown @ 6 x I r

2-24 seconds +0 ⁄-30%in 0.1 secondincrements

AvailableShort DelayPickup Settings1.5 to 8 x I r±5% in 0.1increments

Available I t SlopeShort Delay Time Settings0.1 to 0.5 seconds in0.01 second increments

2

Available Long DelayPickup Settings (I )r0.4 to 1 x I = In rin 0.01 increments

ApplicationDeterminesEnd of Curve

.5

.3

.1

r

r

4

7

2

24

Figure 13. Long Delay I2t, Short Delay I2t - Curve Number SC-6323-96, June 2007

L-Frame Circuit Breakers Equipped with Digitrip OPTIM 550/1050 Trip Units; Long Delay I2t, Short Delay I2t

Circuit Breaker Time/Current Curves (Phase Current)

Series C L-Frame Circuit Breakers

Equipped With Digitrip Optim Trip Units

Response: LONG DELAY I2t, SHORT DELAY I2t

125 125 ORPL125A125 50 -125 75 -1000125 110 ORPL125A110 44 -110 66 - 880125 100 ORPL125A100 40 -100 60 - 800125 90 ORPL125A090 36 - 90 54 - 720125 70 ORPL125A070 28 - 70 42 - 560125 63 ORPL125A063 25 - 63 37.5 - 504250 250 ORPL250A250 100 - 250 150 - 2000250 225 ORPL250A225 90 - 225 135 - 1800 250 200 ORPL250A200 80 - 200 120 - 1600250 175 ORPL250A175 70 - 175 105 - 1400250 160 ORPL250A160 64 - 160 96 - 1280250 150 ORPL250A150 60 - 150 90 - 1200250 125 ORPL250A125 50 - 125 75 - 1000400 400 ORPL400A400 160 - 140 240 - 3200400 350 ORPL400A350 140 -350 210 - 2800400 300 ORPL400A300 120 - 300 180 - 2400400 250 ORPL400A250 100 - 250 150 - 2000400 225 ORPL400A225 90 - 225 135 -1800400 200 ORPL400A200 80 - 200 120 -1600600 600 ORPL600A600 240 -600 360 - 4800600 500 ORPL600A500 200 -500 300 - 4000600 400 ORPL600A400 160 -400 240 - 3200600 350 ORPL600A350 140 -350 210 - 2800600 300 ORPL600A300 120 -300 180 - 2400

Maximum Ampere Rating

Available Rating Plugs

Notes

1 For field testing primary injection methods, follow NEMA AB4 guidelines .

2 Calibration response in short delay pickup range is the same for 1, 2, or 3 poles in series .

3 There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .

4 The end of the curve is determined by the interrupting rating of the circuit breaker . See above tabulation .

5 This curve is shown as a multiple of the Long Delay Pick-up Setting, (Ir) . This Ir setting is programmed in primary value amperes via a Breaker Interface Module, or OPTIMizer, or a Remote PC (IMPACC System) .

6 The Long Delay Pick-up Point (indicated by a flashing LED on the product) nominally occurs above 115% of the Ir current, with a +/- 5% tolerance . The short delay settings have conventional 100%, +/- 5% as the pickup points .

7 For additional curve tolerances contact Eaton .

8 Total clearing times shown include the response times of the trip unit, the breaker opening, and the quenching of the arcing current .

Ampere Rating(In)

Rating Plug Catalog Number

Long DelayPickup Range0.4 to 1 x InAmperes

Short DelayPickup Range1.5 to 8 x IrAmperes

UL/CSA rms Sym. kA, 50/60 Hz

LD, CLD 65 35 25HLD, CHDC 100 65 35LDC, CLDC 200 100 50

240V 480V 600VBreaker Type

Interrupting Rating

IEC 60947-2 rms Sym. kA, 50/60 Hz

Icu Ics Icu Ics Icu IcsLD, CLD 85 85 45 45 20 10HLD, CHDC 100 100 70 70 25 13LDC, CLDC 200 150 100 75 35 18

240V 415V 690VBreaker Type

UIMP = 8 kV Utilization Category A

Page 18: Time Current Curves TD012035EN Series C L-Frame...6 Time Current Curves TD012035EN Effective December 2015 Series C L-Frame EATON 0.01 2 10 20 30 40 50 60 70 80 90 100 1000 900 800

18

Time Current Curves TD012035EN Effective December 2015

Series CL-Frame

EATON www.eaton.com

.01 .01

10,000

5,000

3,000

2,000

1,000

500

300

200

100

50

30

20

10

5

3

2

1 11

.5 .5.5

.3 .3.3

.2 .2.2

.1 .1.1

.05 .05

.03 .03

.02 .02

1 M

INU

TE

1 H

OU

R2 H

OU

RS

SD

NO

CE

SNI

EMI

T

SD

NO

CE

SNI

EMI

T

500

600

700

800

9002 3 20 304 5 6 7 40 50 60 70 80 90 100

100

300

100.8

0.9 1

0.5

0.6

0.7 8 9

20 30 40 50 60 70 80 900.5

2 3 5 6 7 108 9

200

400

CURRENT IN MULTIPLES OF LONG DELAY SETTING I

CURRENT IN MULTIPLES OF LONG DELAY SETTING I

1000

2000

3000

4000

5000

6000

7000

8000

9000

10,0

00

0.8

0.7

0.6

0.9

1

MinimumTotalClearingTime

MaximumTotalClearingTime

AvailableLong DelayTime SettingsShown @ 6 x I r2-24 seconds +0 ⁄-30%in 0.1 secondincrements

AvailableShort DelayPickup Settings1.5 to 8 x Ir±5% in 0.1increments

Available FlatShort Delay Time Settings0.1 to 0.5 secondsin 0.01 second increments

Available Long DelayPickup Settings (I )r0.4 to 1 x I = In rin 0.01 increments

ApplicationDeterminesEnd of Curve

.1

.5

.3

r

r

24

7

4

2

Figure 14. Long Delay I2T, Short Delay Flat - Curve Number SC-6324-96, June 2007

L-Frame Circuit Breakers Equipped with Digitrip OPTIM 550/1050 Trip Units; Long Delay I2t, Short Delay Flat

Circuit Breaker Time/Current Curves (Phase Current)

Series C L-Frame Circuit Breakers

Equipped With Digitrip Optim Trip Units

Response: LONG DELAY I2t, SHORT DELAY FLAT

125 125 ORPL125A125 50 -125 75 -1000125 110 ORPL125A110 44 -110 66 - 880125 100 ORPL125A100 40 -100 60 - 800125 90 ORPL125A090 36 - 90 54 - 720125 70 ORPL125A070 28 - 70 42 - 560125 63 ORPL125A063 25 - 63 37.5 - 504250 250 ORPL250A250 100 - 250 150 - 2000250 225 ORPL250A225 90 - 225 135 - 1800 250 200 ORPL250A200 80 - 200 120 - 1600250 175 ORPL250A175 70 - 175 105 - 1400250 160 ORPL250A160 64 - 160 96 - 1280250 150 ORPL250A150 60 - 150 90 - 1200250 125 ORPL250A125 50 - 125 75 - 1000400 400 ORPL400A400 160 - 140 240 - 3200400 350 ORPL400A350 140 -350 210 - 2800400 300 ORPL400A300 120 - 300 180 - 2400400 250 ORPL400A250 100 - 250 150 - 2000400 225 ORPL400A225 90 - 225 135 -1800400 200 ORPL400A200 80 - 200 120 -1600600 600 ORPL600A600 240 -600 360 - 4800600 500 ORPL600A500 200 -500 300 - 4000600 400 ORPL600A400 160 -400 240 - 3200600 350 ORPL600A350 140 -350 210 - 2800600 300 ORPL600A300 120 -300 180 - 2400

Maximum Ampere Rating

Available Rating Plugs

Notes

1 For field testing primary injection methods, follow NEMA AB4 guidelines .

2 Calibration response in short delay pickup range is the same for 1, 2, or 3 poles in series .

3 There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .

4 The end of the curve is determined by the interrupting rating of the circuit breaker . See above tabulation .

5 This curve is shown as a multiple of the Long Delay Pick-up Setting, (Ir) . This Ir setting is programmed in primary value amperes via a Breaker Interface Module, or OPTIMizer, or a Remote PC (IMPACC System) .

6 The Long Delay Pick-up Point (indicated by a flashing LED on the product) nominally occurs above 115% of the Ir current, with a +/- 5% tolerance . The short delay settings have conventional 100%, +/- 5% as the pickup points .

7 For additional curve tolerances contact Eaton .

8 Total clearing times shown include the response times of the trip unit, the breaker opening, and the quenching of the arcing current .

Ampere Rating(In)

Rating Plug Catalog Number

Long DelayPickup Range0.4 to 1 x InAmperes

Short DelayPickup Range1.5 to 8 x IrAmperes

UL/CSA rms Sym. kA, 50/60 Hz

LD, CLD 65 35 25HLD, CHDC 100 65 35LDC, CLDC 200 100 50

240V 480V 600VBreaker Type

Interrupting Rating

IEC 60947-2 rms Sym. kA, 50/60 Hz

Icu Ics Icu Ics Icu IcsLD, CLD 85 85 45 45 20 10HLD, CHDC 100 100 70 70 25 13LDC, CLDC 200 150 100 75 35 18

240V 415V 690VBreaker Type

UIMP = 8 kV Utilization Category A

Page 19: Time Current Curves TD012035EN Series C L-Frame...6 Time Current Curves TD012035EN Effective December 2015 Series C L-Frame EATON 0.01 2 10 20 30 40 50 60 70 80 90 100 1000 900 800

19

Time Current Curves TD012035EN Effective December 2015

Series CL-Frame

EATON www.eaton.com

.01 .01

10,000

5,000

3,000

2,000

1,000

500

300

200

100

50

30

20

10

5

3

2

1 11

.5 5.5.

.3 3.3.

.2 2.2.

.1 1.1.

.05 .05

.03 .03

.02 .02

ET

UNI

M 1

1 H

OU

R2

HO

UR

SS

DN

OC

ES

NIE

MIT

SD

NO

CE

SNI

EMI

T

500

600

700

800

9002 3 20 304 5 6 7 40 50 60 70 80 90 100

100

300

100.8

0.9 1

0.5

0.6

0.7 8 9

20 30 40 50 60 70 80 900.5

2 3 5 6 7 108 9

200

400

CURRENT IN MULTIPLES OF LONG DELAY SETTING I

CURRENT IN MULTIPLES OF LONG DELAY SETTING I

1000

2000

3000

4000

5000

6000

7000

8000

9000

10,0

00

0.8

0.7

0.6

0.9

1

ApplicationDeterminesEnd of Curve

MinimumTotalClearingTime

MaximumTotalClearingTime

AvailableLong DelayTime SettingsShown @ 6 x I r1-5 seconds +10 ⁄-40%in 0.1 secondincrements

AvailableShort DelayPickup Settings1.5 to 8 x Ir±5% in 0.1increments

Available FlatShort Delay Time Settings0.1 to 0.5 secondsin 0.01 second increments

Available Long DelayPickup Settings (I )r0.4 to 1 x I = In r

in 0.01 increments

5

1

.5

.1

r

r

Figure 15 Long Delay I4T, Short Delay Flat- Curve Number SC-6325-96, June 2007

L-Frame Circuit Breakers Equipped with Digitrip OPTIM 550/1050 Trip Units; Long Delay I4t, Short Delay Flat

Circuit Breaker Time/Current Curves (Phase Current)

Series C L-Frame Circuit Breakers

Equipped With Digitrip Optim Trip Units

Response: LONG DELAY I4t, SHORT DELAY FLAT

125 125 ORPL125A125 50 -125 75 -1000125 110 ORPL125A110 44 -110 66 - 880125 100 ORPL125A100 40 -100 60 - 800125 90 ORPL125A090 36 - 90 54 - 720125 70 ORPL125A070 28 - 70 42 - 560125 63 ORPL125A063 25 - 63 37.5 - 504250 250 ORPL250A250 100 - 250 150 - 2000250 225 ORPL250A225 90 - 225 135 - 1800 250 200 ORPL250A200 80 - 200 120 - 1600250 175 ORPL250A175 70 - 175 105 - 1400250 160 ORPL250A160 64 - 160 96 - 1280250 150 ORPL250A150 60 - 150 90 - 1200250 125 ORPL250A125 50 - 125 75 - 1000400 400 ORPL400A400 160 - 140 240 - 3200400 350 ORPL400A350 140 -350 210 - 2800400 300 ORPL400A300 120 - 300 180 - 2400400 250 ORPL400A250 100 - 250 150 - 2000400 225 ORPL400A225 90 - 225 135 -1800400 200 ORPL400A200 80 - 200 120 -1600600 600 ORPL600A600 240 -600 360 - 4800600 500 ORPL600A500 200 -500 300 - 4000600 400 ORPL600A400 160 -400 240 - 3200600 350 ORPL600A350 140 -350 210 - 2800600 300 ORPL600A300 120 -300 180 - 2400

Maximum Ampere Rating

Available Rating Plugs

Notes

1 For field testing primary injection methods, follow NEMA AB4 guidelines .

2 Calibration response in short delay pickup range is the same for 1, 2, or 3 poles in series .

3 There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .

4 The end of the curve is determined by the interrupting rating of the circuit breaker . See above tabulation .

5 This curve is shown as a multiple of the Long Delay Pick-up Setting, (Ir) . This Ir setting is programmed in primary value amperes via a Breaker Interface Module, or OPTIMizer, or a Remote PC (IMPACC System) .

6 The Long Delay Pick-up Point (indicated by a flashing LED on the product) nominally occurs above 115% of the Ir current, with a +/- 5% tolerance . The short delay settings have conventional 100%, +/- 5% as the pickup points .

7 For additional curve tolerances contact Eaton .

8 Total clearing times shown include the response times of the trip unit, the breaker opening, and the quenching of the arcing current .

Ampere Rating(In)

Rating Plug Catalog Number

Long DelayPickup Range0.4 to 1 x InAmperes

Short DelayPickup Range1.5 to 8 x IrAmperes

UL/CSA rms Sym. kA, 50/60 Hz

LD, CLD 65 35 25HLD, CHDC 100 65 35LDC, CLDC 200 100 50

240V 480V 600VBreaker Type

Interrupting Rating

IEC 60947-2 rms Sym. kA, 50/60 Hz

Icu Ics Icu Ics Icu IcsLD, CLD 85 85 45 45 20 10HLD, CHDC 100 100 70 70 25 13LDC, CLDC 200 150 100 75 35 18

240V 415V 690VBreaker Type

UIMP = 8 kV Utilization Category A

Page 20: Time Current Curves TD012035EN Series C L-Frame...6 Time Current Curves TD012035EN Effective December 2015 Series C L-Frame EATON 0.01 2 10 20 30 40 50 60 70 80 90 100 1000 900 800

20

Time Current Curves TD012035EN Effective December 2015

Series CL-Frame

EATON www.eaton.com

.01

10,000

5,000

3,000

2,000

1,000

500

300

200

100

50

30

20

10

5

3

2

.5

.3

.2

.1

.05

.03

.02

ET

UNI

M 1

RU

OH

1S

RU

OH

2S

DN

OC

ES

NIE

MIT

1

001

02 30 40 05 06 07 08 902 3 4 5 6 7 018 91

2 3 02 304 5 6 7 40 05 06 07 08 90001

018 91

.01

.5

.3

.2

.1

.05

.03

.02

1

2000

200

3000

300

4000

400

5000

500

6000

600

7000

700

800

8000

900

9080

1000

100

CURRENT IN MULTIPLES OF PLUG RATING I

CURRENT IN MULTIPLES OF PLUG RATING I AMPERES

Available Flat ResponseShort Delay Time Settings0.1 to 0.5 secondsin 0.01 second increments

FixedInstantaneousOverride

Available InstantaneousPickup Settings2 to 8 x In ± 10%In 0.1 Increments

ApplicationDeterminesEnd of Curve

.3

.1

.5

n

n

2 8

Figure 16. Intantaneous and Override, 125 Amperes - Curve Number SC-6329-96, June 2007

L-Frame Circuit Breakers Equipped with 125A Digitrip OPTIM 550/1050 Trip Units; Instantaneous and Override

Circuit Breaker Time/Current Curves (Phase Current)

Series C L-Frame Circuit Breakers

Equipped With 125A Digitrip Optim Trip Units

Response: INSTANTANEOUS AND OVERRIDE

125 125 ORPL125A125 250 -1000 2100 +/-15%125 110 ORPL125A110 220 -880 2100 +/-15%125 100 ORPL125A100 200 -800 2100 +/-15%125 90 ORPL125A090 180 - 720 2100 +/-15%125 70 ORPL125A070 140 - 560 2100 +/-15%

Maximum Ampere Rating

Available Rating Plugs

Ampere Rating(In)

Rating Plug Catalog Number

Long DelayPickup Range2 to 8 x InAmperes

OverrideAmperes

UL/CSA rms Sym. kA, 50/60 Hz

LD, CLD 65 35 25HLD, CHDC 100 65 35LDC, CLDC 200 100 50

240V 480V 600VBreaker Type

Interrupting Rating

IEC 60947-2 rms Sym. kA, 50/60 Hz

Icu Ics Icu Ics Icu IcsLD, CLD 85 85 45 45 20 10HLD, CHDC 100 100 70 70 25 13LDC, CLDC 200 150 100 75 35 18

240V 415V 690VBreaker Type

UIMP = 8 kV Utilization Category ANotes

1 For field testing primary injection methods, follow NEMA AB4 guidelines .

2 For high fault current levels, a fixed instantaneous override is provided at 2100 amps, +/- 15% .

3 Calibration response in short delay pickup range is the same for 1, 2, or 3 poles in series .

4 There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .

5 The end of the curve is determined by the interrupting rating of the circuit breaker . See above tabulation .

6 The instantaneous settings have conventional 100%, +/- 10% of the pickup points .

7 For additional curve tolerances contact Eaton .

8 Total clearing times shown include the response times of the trip unit, the breaker opening, and the quenching of the arcing current .

Page 21: Time Current Curves TD012035EN Series C L-Frame...6 Time Current Curves TD012035EN Effective December 2015 Series C L-Frame EATON 0.01 2 10 20 30 40 50 60 70 80 90 100 1000 900 800

21

Time Current Curves TD012035EN Effective December 2015

Series CL-Frame

EATON www.eaton.com

.01

10,000

5,000

3,000

2,000

1,000

500

300

200

100

50

30

20

10

5

3

2

.5

.3

.2

.1

.05

.03

.02

1 M

INU

TE

1 H

OU

R2

HO

UR

SS

DN

OC

ES

NIE

MIT

1

100

20 30 40 50 60 70 80 902 3 4 5 6 7 108 91

2 3 20 304 5 6 7 40 50 60 70 80 90 100

108 91

.01

.5

.3

.2

.1

.05

.03

.02

1

200

2000

3000

300

4000

400

5000

500

6000

600

7000

700

8000

800

900

9000

1000

10,0

00

CURRENT IN MULTIPLES OF PLUG RATING I

CURRENT IN MULTIPLES OF PLUG RATING I AMPERES

Available Rating Plugs

Interrupting Rating @ 50/60 Hz RMS Sym. Amperes (kA)

MaximumAmpereRating

AmpereRating

(I )n

250225200175160150125

Rating PlugCatalogNumber

ORPL250A250ORPL250A225ORPL250A200ORPL250A175ORPL250A160ORPL250A150ORPL250A125

OverrideAmperes

InstantaneousPickup Range

2 to 8 x InAmperes

500 -2000450 -1800400 -1600350 -1400320 -1280300 -1200250 -1000

250

Breaker

Type

LD, CLDHLD, CHDCLDC, CLDC

UL / CSA

Volts

kA

240

65100200

480

3565100

600

253550

IEC 947-2

Volts

LD, CLDHLD, CHDCLDC, CLDC

240 690

U = 8kVIMP

415

kA

Rating ICUICUICU ICS ICSICS

85100200

85100150

4570100

457075

202535

101318

Utilization Category A

Notes

1) For �eld testing primary injection methods, follow NEMA AB4-2003 publications.

comes into play if a current above the long delay pickup value exists for a time and thenis cleared by the tripping of a downstream device or the circuit breaker itself. Asubsequent overload will cause the circuit breaker to trip in shorter time than normal.The amount of time reduction is inverse to the amount of time that has elapsed since theprevious overload. Approximately �ve minutes is required between overloads tocompletely reset the memory.

See above tabulation.

Available Flat ResponseShort Delay Time Settings.1 to .5 secondsin .01 second increments

FixedInstantaneousOverride

Available InstantaneousPickup Settings2 to 8 x In ± 10%In 0.1 Increments

ApplicationDeterminesEnd of Curve

and the extinction of the arcing current.

Circuit Breaker Time/Current Curves (Phase Current)Series C L - Frame Circuit BreakersEquipped With 250A Digitrip Optim Trip UnitsResponse: INSTANTANEOUS AND OVERRIDE

n

n

.3

.1

.5

2 8

2) For high fault current levels, a �xed, instantaneous override is provided at 4400 amps, +/- 15%.

3) Calibration response in short delay pickup range is the same for 1, 2, or 3 poles in series.

4) There is a memory effect that can act to shorten the long delay. The memory effect

5) The end of the curve is determined by the interrupting rating of the circuit breaker.

6) For ground fault time / current curves see SC-6330-96.

7) The instantaneous settings have conventional 100%, +/- 10% the pickup points.

8) For additional curve tolerances contact Cutler-Hammer.

9) Total clearing times shown include the response times of the trip unit, the breaker opening,

of

4400 +/-15%4400 +/-15%4400 +/-15%4400 +/-15%

4400 +/-15%4400 +/-15%

4400 +/-15%

Figure 17. Intantaneous and Override, 250 Amperes - Curve Number SC-6328-96, June 2007

L-Frame Circuit Breakers Equipped with 250A Digitrip OPTIM 550/1050 Trip Units; Instantaneous and Override

Circuit Breaker Time/Current Curves (Phase Current)

Series C L-Frame Circuit Breakers

Equipped With 250A Digitrip Optim Trip Units

Response: INSTANTANEOUS AND OVERRIDE

250 250 ORPL250A250 250 -1000 4400 +/-15%250 225 ORPL250A225 220 -880 4400 +/-15%250 200 ORPL250A200 200 -800 4400 +/-15%250 175 ORPL250A175 180 - 720 4400 +/-15%250 160 ORPL250A160 140 - 560 4400 +/-15%250 150 ORPL250A150 300 -1200 4400 +/-15%250 120 ORPL250A125 250 -1000 4400 +/-15%

Maximum Ampere Rating

Available Rating Plugs

Ampere Rating(In)

Rating Plug Catalog Number

Long DelayPickup Range2 to 8 x InAmperes

OverrideAmperes

UL/CSA rms Sym. kA, 50/60 Hz

LD, CLD 65 35 25HLD, CHDC 100 65 35LDC, CLDC 200 100 50

240V 480V 600VBreaker Type

Interrupting Rating

IEC 60947-2 rms Sym. kA, 50/60 Hz

Icu Ics Icu Ics Icu IcsLD, CLD 85 85 45 45 20 10HLD, CHDC 100 100 70 70 25 13LDC, CLDC 200 150 100 75 35 18

240V 415V 690VBreaker Type

UIMP = 8 kV Utilization Category ANotes

1 For field testing primary injection methods, follow NEMA AB4 guidelines .

2 For high fault current levels, a fixed instantaneous override is provided at 4400 amps, +/- 15% .

3 Calibration response in short delay pickup range is the same for 1, 2, or 3 poles in series .

4 There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .

5 The end of the curve is determined by the interrupting rating of the circuit breaker . See above tabulation .

6 The instantaneous settings have conventional 100%, +/- 10% of the pickup points .

7 For additional curve tolerances contact Eaton .

8 Total clearing times shown include the response times of the trip unit, the breaker opening, and the quenching of the arcing current .

Page 22: Time Current Curves TD012035EN Series C L-Frame...6 Time Current Curves TD012035EN Effective December 2015 Series C L-Frame EATON 0.01 2 10 20 30 40 50 60 70 80 90 100 1000 900 800

22

Time Current Curves TD012035EN Effective December 2015

Series CL-Frame

EATON www.eaton.com

.01

10,000

5,000

3,000

2,000

1,000

500

300

200

100

50

30

20

10

5

3

2

.5

.3

.2

.1

.05

.03

.02

1 M

INU

TE

1 H

OU

R2

HO

UR

SS

DN

OC

ES

NIE

MIT

1

100

20 30 40 50 60 70 80 902 3 4 5 6 7 108 91

2 3 20 304 5 6 7 40 50 60 70 80 90 100

108 91

.01

.5

.3

.2

.1

.05

.03

.02

1

2000

2000

0

3000

300

4000

400

5000

500

6000

600

7000

700

8000

800

900

9000

1000

1000

0

CURRENT IN MULTIPLES OF PLUG RATING I

CURRENT IN MULTIPLES PLUG RATING I AMPERES

Available Rating Plugs

Interrupting Rating @ 50/60 Hz RMS Sym. Amperes (kA)

400350300250225200

AmpereRating

(I )n

ORPL400A400ORPL400A350ORPL400A300ORPL400A250ORPL400A225ORPL400A200

Rating PlugCatalogNumber

OverrideAmperes

800 -3200700 -2800600 -2400500 -2000450 -1800400 -1600

InstantaneousPickup Range

2 to 8 x InAmperes

MaximumAmpereRating

400

Breaker

Type

LD, CLDHLD, CHDCLDC, CLDC

UL / CSA

Volts

kA

240

65100200

480

3565100

600

253550

IEC 947-2

Volts

LD, CLDHLD, CHDCLDC, CLDC

240 690

U = 8kVIMP

415

kA

Rating ICUICUICU ICS ICSICS

85100200

85100150

4570100

457075

202535

101318

Utilization Category A

Notes

1) For �eld testing primary injection methods, follow NEMA AB4-2003 publications.

comes into play if a current above the long delay pickup value exists for a time and thenis cleared by the tripping of a downstream device or the circuit breaker itself. Asubsequent overload will cause the circuit breaker to trip in shorter time than normal.The amount of time reduction is inverse to the amount of time that has elapsed since theprevious overload. Approximately �ve minutes is required between overloads tocompletely reset the memory.

See above tabulation.

Available Flat ResponseShort Delay Time Settings0.1 to 0.5 secondsin 0.01 second increments

FixedInstantaneousOverride

Available InstantaneousPickup Settings2 to 8 x In ± 10%In 0.1 Increments

ApplicationDeterminesEnd of Curve

and the extinction of the arcing current.

Circuit Breaker Time/Current Curves (Phase Current)Series C L - Frame Circuit BreakersEquipped With 400A Digitrip Optim Trip UnitsResponse: INSTANTANEOUS AND OVERRIDE

n

n

.3

.1

.5

2 8

2) For high current faults, a �xed, instantaneous override is provided at 6800 amps, +/- 15%.

3) Calibration response in short delay pickup range is the same for 1, 2, or 3 poles in series.

4) There is a memory effect that can act to shorten the long delay. The memory effect

5) The end of the curve is determined by the interrupting rating of the circuit breaker.

6) For ground fault time / current curves see SC-6330-96.

7) The instantaneous settings have conventional 100%, +/- 10% the pickup points.

9) Total clearing times shown include the response times of the trip unit, the breaker opening,

8) For additional curve tolerances contact Cutler-Hammer.

of

6800 +/-15%

6800 +/-15%6800 +/-15%

6800 +/-15%6800 +/-15%6800 +/-15%

Figure 18. Intantaneous and Override, 400 Amperes - Curve Number SC-6327-96, June 2007

L-Frame Circuit Breakers Equipped with 400A Digitrip OPTIM 550/1050 Trip Units; Instantaneous and Override

Circuit Breaker Time/Current Curves (Phase Current)

Series C L-Frame Circuit Breakers

Equipped With 400A Digitrip Optim Trip Units

Response: INSTANTANEOUS AND OVERRIDE

400 400 ORPL400A400 800 -3200 6800 +/-15%400 350 ORPL400A350 700 -2800 6800 +/-15%400 300 ORPL400A300 600 -2400 6800 +/-15%400 250 ORPL400A250 500 -2000 6800 +/-15%400 225 ORPL400A225 450 -1800 6800 +/-15%400 200 ORPL400A200 400 -1600 6800 +/-15%

Maximum Ampere Rating

Available Rating Plugs

Ampere Rating(In)

Rating Plug Catalog Number

Long DelayPickup Range2 to 8 x InAmperes

OverrideAmperes

UL/CSA rms Sym. kA, 50/60 Hz

LD, CLD 65 35 25HLD, CHDC 100 65 35LDC, CLDC 200 100 50

240V 480V 600VBreaker Type

Interrupting Rating

IEC 60947-2 rms Sym. kA, 50/60 Hz

Icu Ics Icu Ics Icu IcsLD, CLD 85 85 45 45 20 10HLD, CHDC 100 100 70 70 25 13LDC, CLDC 200 150 100 75 35 18

240V 415V 690VBreaker Type

UIMP = 8 kV Utilization Category ANotes

1 For field testing primary injection methods, follow NEMA AB4 guidelines .

2 For high fault current levels, a fixed instantaneous override is provided at 6800 amps, +/- 15% .

3 Calibration response in short delay pickup range is the same for 1, 2, or 3 poles in series .

4 There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .

5 The end of the curve is determined by the interrupting rating of the circuit breaker . See above tabulation .

6 The instantaneous settings have conventional 100%, +/- 10% of the pickup points .

7 For additional curve tolerances contact Eaton .

8 Total clearing times shown include the response times of the trip unit, the breaker opening, and the quenching of the arcing current .

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23

Time Current Curves TD012035EN Effective December 2015

Series CL-Frame

EATON www.eaton.com

.01

10,000

5,000

3,000

2,000

1,000

500

300

200

100

50

30

20

10

5

3

2

.5

.3

.2

.1

.05

.03

.02

1 M

INU

TE

1 H

OU

R2

HO

UR

SS

DN

OC

ES

NIE

MIT

1

100

20 30 40 50 60 70 80 902 3 4 5 6 7 108 91

2 3 20 304 5 6 7 40 50 60 70 80 90 100

108 91

.01

.5

.3

.2

.1

.05

.03

.02

1

2000

3000

4000

5000

6000

7000

8000

9000

10,0

00

20,0

00

30,0

00

300

400

500

600

700

800

900

1000

CURRENT IN MULTIPLES OF RATING PLUG I

CURRENT IN MULTIPLES OF RATING PLUG I AMPERES

Available Rating Plugs

Interrupting Rating @ 50/60 Hz RMS Sym. Amperes (kA)

AmpereRating

(I )n

Rating PlugCatalogNumber

OverrideAmperes

6800 +/-15%1200 -48001000 -4000800 -3200700 -2800600 -2400

InstantaneousPickup Range

2 to 8 x InAmperes

MaximumAmpereRating

600500400350300

ORPL600A600ORPL600A500ORPL600A400ORPL600A350ORPL600A300

600

Breaker

Type

LD, CLDHLD, CHDCLDC, CLDC

UL / CSA

Volts

kA

240

65100200

480

3565100

600

253550

IEC 947-2

Volts

LD, CLDHLD, CHDCLDC, CLDC

240 690

U = 8kVIMP

415

kA

Rating ICUICUICU ICS ICSICS

85100200

85100150

4570100

457075

202535

101318

Utilization Category A

Notes

1) For �eld testing primary injection methods, follow NEMA AB4-2003 publications.

comes into play if a current above the long delay pickup value exists for a time and thenis cleared by the tripping of a downstream device or the circuit breaker itself. Asubsequent overload will cause the circuit breaker to trip in shorter time than normal.The amount of time reduction is inverse to the amount of time that has elapsed since theprevious overload. Approximately �ve minutes is required between overloads tocompletely reset the memory.

See above tabulation.

Available Flat ResponseShort Delay Time Settings0.1 to 0.5 secondsin 0.01 second increments

FixedInstantaneousOverride

Available InstantaneousPickup Settings2 to 8 x In ± 10%In 0.1 Increments

.3

.1

.5

and the extinction of the arcing current.

Circuit Breaker Time/Current Curves (Phase Current)Series C L - Frame Circuit BreakersEquipped With 600A Digitrip Optim Trip UnitsResponse: INSTANTANEOUS AND OVERRIDE

ApplicationDeterminesEnd of Curve

n

n

2 8

2) For high fault current levels, a �xed instantaneous override is provided at 6800 amps, +/- 15%.

3) Calibration response in short delay pickup range is the same for 1, 2, or 3 poles in series.

4) There is a memory effect that can act to shorten the long delay. The memory effect

5) The end of the curve is determined by the interrupting rating of the circuit breaker.

6) For ground fault time / current curves see SC-6330-96.

7) The instantaneous settings have conventional 100%, +/- 10% of the pickup points.

8) For additional curve tolerances contact Cutler-Hammer.

9) Total clearing times shown include the response times of the trip unit, the breaker opening,

6800 +/-15%6800 +/-15%

6800 +/-15%6800 +/-15%

Figure 19. Intantaneous and Override, 600 Amperes - Curve Number SC-6326-96, June 2007

L-Frame Circuit Breakers Equipped with 600A Digitrip OPTIM 550/1050 Trip Units; Instantaneous and Override

Circuit Breaker Time/Current Curves (Phase Current)

Series C L-Frame Circuit Breakers

Equipped With 600A Digitrip Optim Trip Units

Response: INSTANTANEOUS AND OVERRIDE

600 600 ORPL600A600 1200 -4800 6800 +/-15%600 500 ORPL400A350 700 -2800 6800 +/-15%600 400 ORPL400A300 600 -2400 6800 +/-15%600 350 ORPL400A250 500 -2000 6800 +/-15%600 300 ORPL400A225 450 -1800 6800 +/-15%

Maximum Ampere Rating

Available Rating Plugs

Ampere Rating(In)

Rating Plug Catalog Number

Long DelayPickup Range2 to 8 x InAmperes

OverrideAmperes

UL/CSA rms Sym. kA, 50/60 Hz

LD, CLD 65 35 25HLD, CHDC 100 65 35LDC, CLDC 200 100 50

240V 480V 600VBreaker Type

Interrupting Rating

IEC 60947-2 rms Sym. kA, 50/60 Hz

Icu Ics Icu Ics Icu IcsLD, CLD 85 85 45 45 20 10HLD, CHDC 100 100 70 70 25 13LDC, CLDC 200 150 100 75 35 18

240V 415V 690VBreaker Type

UIMP = 8 kV Utilization Category A

Notes

1 For field testing primary injection methods, follow NEMA AB4 guidelines .

2 For high fault current levels, a fixed instantaneous override is provided at 6800 amps, +/- 15% .

3 Calibration response in short delay pickup range is the same for 1, 2, or 3 poles in series .

4 There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .

5 The end of the curve is determined by the interrupting rating of the circuit breaker . See above tabulation .

6 The instantaneous settings have conventional 100%, +/- 10% of the pickup points .

7 For additional curve tolerances contact Eaton .

8 Total clearing times shown include the response times of the trip unit, the breaker opening, and the quenching of the arcing current .

Page 24: Time Current Curves TD012035EN Series C L-Frame...6 Time Current Curves TD012035EN Effective December 2015 Series C L-Frame EATON 0.01 2 10 20 30 40 50 60 70 80 90 100 1000 900 800

24

Time Current Curves TD012035EN Effective December 2015

Series CL-Frame

EATON www.eaton.com

.01

10,000

5,000

3,000

2,000

1,000

500

300

200

100

50

30

20

10

5

3

2

.5

.3

.2

.1

.05

.03

.02

1 M

INU

TE

1 H

OU

R2 H

OU

RS

SD

NO

CE

SNI

EMI

T

1

CURRENT IN MULTIPLES OF FRAME RATING I

CURRENT IN MULTIPLES OF FRAME RATING I

.01

.5

.3

.2

.1

.05

.03

.02

1

.1.1

.2.2

.3.3

.4.4

.5.5

.6.6

.7.7

.8.8

.9.9

11

22

33

44

55

66

77

88

99

1010

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

Available Ground Fault Ranges

Interrupting Rating @ 50/60 Hz RMS Sym. Amperes (kA)

Breaker

Type

LD, CLDHLD, CHDCLDC, CLDC

UL / CSA

Volts

kA

240

65100200

480

3565100

600

253550

IEC 947-2

Volts

LD, CLDHLD, CHDCLDC, CLDC

240 690

U = 8kVIMP

415

kA

Rating ICUICUICU ICS ICSICS

85100200

85100150

4570100

457075

202535

101318

Utilization Category A

MaximumAmpereRating

125

400

600

250

Amperes

Ground FaultPickup Range0.2 to 1.0 x Is

25 - 125

50 - 250

80 - 400

120 - 600

Notes1) For �eld testing primary injection methods, follow NEMA AB4-2003 publications.2) Calibration response in short delay pickup range is the same for 1, 2, or 3 poles in series.3) There is a memory effect that can act to shorten the long delay. The memory effect

comes into play if a current above the long delay pickup value exists for a time and thenis cleared by the tripping of a downstream device or the circuit breaker itself. Asubsequent overload will cause the circuit breaker to trip in shorter time than normal.The amount of time reduction is inverse to the amount of time that has elapsed since theprevious overload. Approximately �ve minutes is required between overloads tocompletely reset the memory.

4) The end of the curve is determined by the interrupting rating of the circuit breaker.See above tabulation.

5) For phase current curves, see SC-6323-96, SC-6324-96, SC-6325-96, SC-6326-96,SC-6327-96, SC-6328-96, and SC-6329-96.

Available Ground FaultPickup Settings0.2 to 1.0 x I ±10%s

in 0.1 increments

1.01.01.0.5.2

Available Flat ResponseGround Fault Time Settings0.1 to 0.5 secondsin 0.01 second increments

5

6) The ground fault settings have conventional 100%, +/- 10% as the pickup points.7) For additional curve tolerances contact Cutler-Hammer.8) Total clearing times shown include the response times of the trip unit, the breaker opening,

and the extinction of the arcing current.

.5

.3

.1

Flat Shape forGround FaultTime Settings

Circuit Breaker Time/Current Curves (Ground Current)Series C L - Frame Circuit BreakersEquipped With Digitrip Optim Trip UnitsResponse: GROUND FAULT TRIP OR GROUND FAULT ALARM ONLY

I t Slope forGround FaultTime Settings

2

Available I t ResponseGround Fault Time Settings0.1 to 0.5 secondsin 0.01 second increments

2

s

s

1.0

.5

.5

.3

.1

.2

Figure 20. Ground Fault of Ground Fault Alarm Only - Curve NumberSC-6330-96, June 2007

L-Frame Circuit Breakers Equipped with Digitrip OPTIM 550/1050 Trip Units; Ground Fault or Ground Fault Alarm Only

Circuit Breaker Time/Current Curves (Ground Current)

Series C L-Frame Circuit Breakers

Equipped With Digitrip Optim Trip Units

Response: GROUND FAULT TRIP OR GROUND FAULT ALARM ONLY

125 25-125250 50-250400 80-400600 120-600

Maximum Ampere Rating

Available Ground Fault RangesGround FaultPickup Range0.2 to 1.0 x IsAmperes

UL/CSA rms Sym. kA, 50/60 Hz

LD, CLD 65 35 25HLD, CHDC 100 65 35LDC, CLDC 200 100 50

240V 480V 600VBreaker Type

Interrupting Rating

IEC 60947-2 rms Sym. kA, 50/60 Hz

Icu Ics Icu Ics Icu IcsLD, CLD 85 85 45 45 20 10HLD, CHDC 100 100 70 70 25 13LDC, CLDC 200 150 100 75 35 18

240V 415V 690VBreaker Type

UIMP = 8 kV Utilization Category ANotes

1 For field testing primary injection methods, follow NEMA AB4 guidelines .

2 Calibration response in short delay pickup range is the same for 1, 2, or 3 poles in series .

3 There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .

4 The end of the curve is determined by the interrupting rating of the circuit breaker . See above tabulation .

5 The ground fault settings have conventional 100%, +/- 10% of the pickup points .

6 For additional curve tolerances contact Eaton .

7 Total clearing times shown include the response times of the trip unit, the breaker opening, and the quenching of the arcing current .

Page 25: Time Current Curves TD012035EN Series C L-Frame...6 Time Current Curves TD012035EN Effective December 2015 Series C L-Frame EATON 0.01 2 10 20 30 40 50 60 70 80 90 100 1000 900 800

25

Time Current Curves TD012035EN Effective December 2015

Series CL-Frame

EATON www.eaton.com

10

5

Maximum

Maximum SinglePole Trip Timesat 25°C 1

Adjustable Magnetic Trip

5X 10X±20% ±10%

TypicalTrip UnitNameplate

Individual PoleAdjustments

ThermalMagneticTrip Unit

C Push to Trip

MagneticMultiples Of In

10

7.5

10 5

7.5

10 5

Amps(In)

Cat.No.40°C

7.5

5

3

2

1

.5

.3

.2

.1

.05

.03

.02

.01

.005

.003

.002

.001

TIME

IN S

EC

ON

DSTI

ME

IN S

EC

ON

DS

10,000

100

50

30

20

10

5

3

2

1

.5

.3

.2

.1

.05

.03

.02

.01

.005

.003

.002

.001

1,000

500

300

200

5,000

3,000

2,000

1 H

OU

R1

MIN

UTE

2 H

OU

RS

100

8060 907050 1000

800

600

900

700

500

400

300

200

10,0

00

8000

6000

9000

7000

5000

4000

3000

2000

10,0

00

8000

6000

9000

7000

5000

4000

3000

2000

100080

0

600

900

700

500

400

300

200

1008060 907050

100,

000

80,0

00

60,0

00

90,0

00

70,0

00

50,0

00

40,0

00

30,0

00

20,0

00

Maximum Interrupting Time

CURRENT IN PERCENT OF BREAKER TRIP UNIT RATING (In)

CURRENT IN PERCENT OF BREAKER TRIP UNIT RATING (In)

Interrupting RatingDetermines End ofCurve

Minimum

Figure 21. LDB, LD, HLD - Curve Number SC-4547-89B, June 2007

Types LDB, LD, HLD Equipped With Type LT Thermal-Magnetic Trip Unit

Circuit Breaker Time/Current Curves

Series C L-Frame Circuit Breakers

Equipped With Type LT Thermal-Magnetic Trip Unit

Catalog Types: LDB, LD, HLD Circuit Breakers, 2, 3 and 4 Poles .

For application and coordination purposes only . Thermal calibration based on 40°C ambient, cold start . Connected with four (4) feet of rated wire (75°C) per terminal . Tested in open air with current in all poles . Instantaneous calibration based on single-pole tests .

Maximum Voltage: 600V, AC (50/60 Hz) 250V, DC

LDB 65 35 25 10LD 65 35 25 10HLD 100 65 35 20

Breaker Rating

RatedAmperes (In)

Instantaneous Trip Amperes(See Figure Below)

300-600 500 to 1000% of trip unit rating (DC values are approximately 40% higher)

Interrupting RatingUL/CSA rms Sym. kA, 50/60 Hz kA, DC

Breaker Type 240V 480V 600V 250V

IEC 60947-2 rms Sym. kA, 50/60 Hz kA, DCBreaker Type 240V, (Ue) 415V, (Ue) 690V (Ue) 250V, (Ue)

Icu Ics Icu Ics Icu Ics Icu IcsLDB 65 17 40 10 40 10 10 3LD 65 17 40 10 40 10 10 3HLD 100 25 65 17 65 17 20 5

Utilization Category AUIMP = 8 kV

Notes: For additional information on the trip unit, see IL 29C606 .

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

Page 26: Time Current Curves TD012035EN Series C L-Frame...6 Time Current Curves TD012035EN Effective December 2015 Series C L-Frame EATON 0.01 2 10 20 30 40 50 60 70 80 90 100 1000 900 800

100

50

30

1,000

500

300

200

5,000

3,000

2,000

1 HO

UR

1 MIN

UTE

2 HO

UR

S

10,000

MaximumMinimum

Maximum SinglePole Trip Timesat 25°C 1

Adjustable Magnetic Trip

5X 10X±20% ±10%

TypicalTrip UnitNameplate

Individual PoleAdjustments

ThermalMagneticTrip Unit

C Push to Trip

MagneticMultiples Of In

10

7.5

10 5

7.5

10 5

Amps(In)

Cat.No.40°C

7.5

5

20

10

5

3

2

1

.5

.3

.2

.1

.05

.03

.02

.01

.005

.003

.002

.001

TIME

IN S

EC

ON

DSTI

ME

IN S

EC

ON

DS

10,000

100

50

30

20

10

5

3

2

1

.5

.3

.2

.1

.05

.03

.02

.01

.005

.003

.002

.001

1,000

500

300

200

5,000

3,000

2,000

1 H

OU

R1

MIN

UTE

2 H

OU

RS

100

8060 907050 1000

800

600

900

700

500

400

300

200

10,0

00

8000

6000

9000

7000

5000

4000

3000

2000

10,0

00

8000

6000

9000

7000

5000

4000

3000

2000

100080

0

600

900

700

500

400

300

200

1008060 907050

100,

000

80,0

00

60,0

00

90,0

00

70,0

00

50,0

00

40,0

00

30,0

00

20,0

00

Maximum Interrupting Time

CURRENT IN PERCENT OF BREAKER TRIP UNIT RATING (In)

CURRENT IN PERCENT OF BREAKER TRIP UNIT RATING (In)

Interrupting RatingDetermines End ofCurve

600V A.C.

480V A.C.

240V A.C.

Figure 22. LDC - Curve Number SC-5760-94, June 2007

Circuit Breaker Time/Current Curves

Series C L-Frame Circuit Breakers

Equipped With Type LT Thermal-Magnetic Trip Unit

Catalog Types: LDC Circuit Breakers, 2, 3 and 4 Poles .

For application and coordination purposes only . Thermal calibration based on 40°C ambient, cold start . Connected with four (4) feet of rated wire (75°C) per terminal . Tested in open air with current in all poles . Instantaneous calibration based on single-pole tests .

Maximum Voltage: 600V, AC (50/60 Hz) 250V, DC

LDC 200 100 50 --

Breaker Rating

RatedAmperes (In)

Instantaneous Trip Amperes(See Figure Below)

300-600 500 to 1000% of trip unit rating (DC values are approximately 40% higher)

Interrupting RatingUL/CSA rms Sym. kA, 50/60 Hz kA, DC

Breaker Type 240V 480V 600V 250V

Utilization Category AUIMP = 8 kV

Notes: For additional information on the trip unit, see IL 29C606 .

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

Type LDC Equipped With Type LT Thermal-Magnetic Trip Unit

Time Current Curves TD012035ENEffective December 2015

Series CL-Frame

26 EATON www.eaton.com

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27

Time Current Curves TD012035EN Effective December 2015

Series CL-Frame

EATON www.eaton.com

Ava

ilabl

e Sh

ort C

ircui

t Cur

rent

, kA

rms

Peak Let-Through I2t, A2 sec

LDC

3600

KD

C34

00

JDC

3250

FDC

3225

1000 kA

500 kA

100 kA

50 kA

10 kA

5 kA

10,0

00,0

00

5,00

0,00

0

1,00

0,00

0

500,

000

100,

000

10,0

00

1 kA

Ava

ilabl

e Sh

ort C

ircui

t Cur

rent

, kA

rms

Peak Let-Through Current, kA

LDC

3600

KD

C34

00

JDC

3250

FDC

3225

50 k

A

5 kA

10 k

A

100

kA

100 kA

500 kA

1000 kA

5 kA

50 kA

10 kA

1 kA

avai

l. Ip

for 1

stsy

mm

. 1/2

cyc

le

1 kA

Figure 23. Peak Let-Through I2t Curve — 240 V - Curve Number AD-29-166A

Figure 24. Peak Let-Through Current Curve — 240 V - Curve Number AD-29-166A

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28

Time Current Curves TD012035EN Effective December 2015

Series CL-Frame

EATON www.eaton.com

Ava

ilabl

e Sh

ort C

ircui

t Cur

rent

, kA

rms

Peak Let-Through I2t, A2 sec

LDC

3600

KD

C34

00

JDC

3250

FDC

3225

1000 kA

500 kA

100 kA

50 kA

10 kA

5 kA

1 kA

10,0

00,0

00

5,00

0,00

0

1,00

0,00

0

500,

000

100,

000

Ava

ilabl

e Sh

ort C

ircui

t Cur

rent

, kA

rms

Peak Let-Through Current, kA

LDC

3600

KD

C34

00

JDC

3250

FDC

3225

1000 kA

500 kA

100 kA

50 kA

10 kA

5 kA

1 kA

avai

l. Ip

for 1

stsy

mm

. 1/2

cyc

le

50 k

A

5 kA

10 k

A

100

kA

1 kA

Figure 25. Peak Let-Through I2t Curve — 480 V - Curve Number AD-29-166B

Figure 26. Peak Let-Through Current — 480 V - Curve Number AD-29-166B

Page 29: Time Current Curves TD012035EN Series C L-Frame...6 Time Current Curves TD012035EN Effective December 2015 Series C L-Frame EATON 0.01 2 10 20 30 40 50 60 70 80 90 100 1000 900 800

29

Time Current Curves TD012035EN Effective December 2015

Series CL-Frame

EATON www.eaton.com

Ava

ilabl

e Sh

ort C

ircui

t Cur

rent

, kA

rms

Peak Let-Through I2t, A2 sec

LDC

3600

KD

C34

00

JDC

3250

FDC

3150

100 kA

50 kA

10 kA

5 kA

1 kA

10,0

00,0

00

5,00

0,00

0

1,00

0,00

0

500,

000

100,

000

Ava

ilabl

e Sh

ort C

ircui

t Cur

rent

, kA

rms

Peak Let-Through Current, kA

LDC

3600

KD

C34

00

JDC

3250

FDC

3150

avai

l. Ip

for 1

stsy

mm

. 1/2

cyc

le

100 kA

50 kA

10 kA

5 kA

1 kA

50 k

A

5 kA

10 k

A

100

kA

1 kA

Figure 27. Peak Let-Through I2t — 600 V - Curve Number AD-29-166C

Figure 28. Peak Let-Through Current — 600 V - Curve Number AD-29-166C

Page 30: Time Current Curves TD012035EN Series C L-Frame...6 Time Current Curves TD012035EN Effective December 2015 Series C L-Frame EATON 0.01 2 10 20 30 40 50 60 70 80 90 100 1000 900 800

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© 2014 EatonAll Rights ReservedPrinted in USAPublication No . TD012035EN / KDCApril 2014

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Series CL-Frame

Time Current Curves TD012035ENEffective December 2015