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
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
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
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
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)
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
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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
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
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
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
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%) .
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
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
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
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
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
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 .
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
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
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
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 .
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 .
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 .
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 .
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 .
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 .
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
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
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
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
Eaton1000 Eaton BoulevardCleveland, OH 44122United StatesEaton .com
© 2014 EatonAll Rights ReservedPrinted in USAPublication No . TD012035EN / KDCApril 2014
Eaton is a registered trademark .
All other trademarks are property of their respective owners .
Series CL-Frame
Time Current Curves TD012035ENEffective December 2015