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Time Current Curves TD012038EN Effective April 2014
ContentsDescription Page
Catalog Number Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Digitrip RMS 510/610/810 Electronic Trip Unit types RD, CRD, RDC, CRDC
Typical Instantaneous Time-Phase Current Characteristic Curve Based on In . . . . . . . . . . . SC-5626-93 . . . . . . . . .4Typical Long Delay/Short Delay Time-Phase Current Characteristic Curve Based on In . . . SC-5627-93 . . . . . . . . .5Typical Ground Fault/Protection Time/Current Characteristic Curve Based on In . . . . . . . . . SC-5628-93 . . . . . . . . .6
Digitrip OPTIM Electronic Trip Unit with 1600/2000A frameLong Delay I2T, Short Delay I2T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-6336-96 . . . . . . . . .7Long Delay I2T, Short Delay Flat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-6337-96 . . . . . . . . .8Long Delay I4T, Short Delay Flat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-6338-96 . . . . . . . . .9Instantaneous and Override, 1600 Amperes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-6342-96 . . . . . . . .10Instantaneous and Override, 2000 Amperes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-6343-96 . . . . . . . .11Ground Fault or Ground Fault Alarm Only, 1600 Amperes . . . . . . . . . . . . . . . . . . . . . . . . . . SC-6345-96 . . . . . . . .12Ground Fault or Ground Fault Alarm Only, 2000 Amperes . . . . . . . . . . . . . . . . . . . . . . . . . . SC-6346-96 . . . . . . . .13
Digitrip OPTIM Electronic Trip Unit with 2500A frameLong Delay I2T, Short Delay I2T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-6339-96 . . . . . . . .14Long Delay I2T, Short Delay Flat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-6340-96 . . . . . . . .15Long Delay I4T, Short Delay Flat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-6341-96 . . . . . . . .16Instanteneous and Override . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-6344-96 . . . . . . . .17Ground Fault or Ground Fault Alarm Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-6347-96 . . . . . . . .18
Note:Time/Current characteristic curves for Series C R-frame circuit breakers--voltages shown in curve headings aremaximum at which the breaker may be applied . Interrupting capacity of inidvidual breaker is tabulated on each curve .
Note:The following curves are UL489 Listed for use in North America .The following circuit breakers are derived from Eaton, Westinghouse, or Cutler-Hammer history .
Time Current Curves are engineering reference documents for application and coordination purposes only. For field testing molded case circuit breakers, refer to NEMA AB 4 guidelines.
Series C RD-Frame 800-2500A, 240-600V
2
Time Current Curves TD012038ENEffective April 2014
Series CR-Frame
eaton www.eaton.com
otee:N Unless noted below, all curves remain unchanged from their prior revision .
Revision Curve Number Page Date
3
Time Current Curves TD012038ENEffective April 2014
Series CR-Frame
eaton www.eaton.com
RD 3 16 T53 W
Circuit Breaker/Frame Type
RDRDCCRDCRDC
Number of Poles
34
= Three-pole= Four-pole Circuit Breaker/Frame
Ampere Rating
162025
= 1600 amperes= 2000 amperes= 2500 amperes
Trip Type
T53T65T86T96T106T107
= Digitrip RMS 510 LS= Digitrip RMS 610 LSG= Digitrip RMS 810 LSIG= Digitrip RMS 910 LSIG= Digitrip OPTIM 1050 LSIG= Digitrip OPTIM 1050 LSIA
Suffix
WPRK
= Without terminals= 100% protected neutral pole= Ground fault remote (310 only)= Molded case switch
Notes1 For complete list of available trip types, refer to Pages V4-T2-233 to V4-T2-242.
2 No Four0pole for CRD and CRDC.
1
2
2
Table 1. 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 .
4
Time Current Curves TD012038ENEffective April 2014
Series CR-Frame
eaton www.eaton.com
2
10
M2
I M P O R T A N T
ApplicationDeterminesEnd of Curve
AvailableInstantaneousSettings2, 2.5, 3, 4, 5, 6, M1 or M2 x In
4
2.5
3 5
648
M1
3
9M2
7M1M2
3
1
Plug Rating (I n) M1 M2
800-1600 A2000 A2500 A
8 x In8 x In7 x In
10 x In9 x In7 x In
Values for M1 and M2 as marked on Rating Plug
1
2
CURRENT IN MULTIPLES OF PLUG RATING I n
TIM
E IN
SEC
ONDS
1000
500
300
200
100
TIME IN
SECONDS
.1.07.05 .7.5.4.3.2 1 75432 10 7050403020
.1.07.05 .7.5.4.3.2 1 75432 10 7050403020
400
900800700600
50
30
20
10
40
90807060
5
3
2
1
4
9876
.5
.3
.2
.1
.4
.9
.8
.7
.6
.05
.03
.02
.01
.04
.09
.08
.07
.06
1000
500
300
200
100
400
900800700600
50
30
20
10
40
90807060
5
3
2
1
4
9876
.5
.3
.2
.1
.4
.9
.8
.7
.6
.05
.03
.02
.01
.04
.09
.08
.07
.06
CURRENT IN MULTIPLES OF PLUG RATING I n
TRIP UNITS ARE NOT AVAILABLE WITH ONLYINSTANTANEOUS PROTECTION. THIS CURVE MUST BEUSED in conjunction WITH Curve No. SC-5627-93 for LONGDELAY (and if applicable SHORT DELAY) PROTECTION toobtain the complete time-current characteristic.
Series C R-Frame Circuit Breakers with
DIGItRIP RMS 510/610/810 trip Units
typical Instantaneous time-Phase Current Characteristic Curve (I)
Figure 1. Typical Instantaneous Time-Phase Current Characteristic Curve Based on In - Curve Number SC-5626-93, October 1997
Types RD, CRD, RDC, CRDC Equipped With Digitrip RMS 510/610/810 Trip Units. TypicalInstantaneous Time-Phase Current Characteristic Curve Based on In
1600 1600 50/60 RP6R16A1601600 1250 50 RP6R16A1251600 1200 50/60 RP6R16A1201600 1000 50/60 RP6R16A1001600 800 50/60 RP6R16A0802000 2000 50/60 RP6R20A2002000 1600 50/60 RP6R20A1602000 1250 50 RP6R20A1252000 1200 50/60 RP6R20A1202000 1000 50/60 RP6R20A1002500 2500 50/60 RP6R25A2502500 2000 50/60 RP6R25A2002500 1600 50/60 RP6R25A160
Maximum Ampere Rating
Available Rating Plugs Marked 50/60 HzAmpere Rating(In)
FrequencyHz
CatalogNumber
UL/CSA rms Sym. kA, 50/60 Hz
RD, CRD 125 65 50RDC, CRDC 200 100 65
240V 480V 600VBreaker Type
Interrupting Rating
Utilization Category A Ics = 0 .5 IcuUimp = 8kV
IEC 60947-2 rms Sym. kA, 50/60 Hz
RD, CRD 125 65 50RDC, CRDC 200 100 65
220-240V 380-415V 500VBreaker Type
notes:
1 For 2000A Rating Plug .
2 For 2500A Rating Plug .
3 For 800-1600A Rating Plugs .
4 The end of the curve is determined by the interrupting rating of the circuit breaker . See above tabulation .
5 The Rating Plug is for 50 and 60 Hz applications .
6 Not UL/CSA listed .
7 For Types RD and RDC only .
8 Curves apply from –20°C to +55°C ambient . Temperatures above 95°C cause automatic trip . For possible ampere derating for ambient above 40°C, refer to Eaton .
tolerances
INST Range = 90% to 110% of setting
5
6
6
777
8
5
Time Current Curves TD012038ENEffective April 2014
Series CR-Frame
eaton www.eaton.com
8
S2
AvailableLong DelayTimeSettingsShown@ 6 x Ir2, 4, 7, 10, 12,15, 20, 24
.1
SDM
2
AvailableLong Delay (Ir)Settings.5, .6, .7, .8, .85, .9, .95 or 1 x In = Ir
MinimumTotalClearingTime
MaximumTotalClearingTime
24
7
2
4
AvailableShort DelaySettings2, 2.5, 3, 4, 5, 6,S1(7) or S2(8) x Ir
.5 2
.4 2
2.2
.3 2
2
2.5
3 5
64
7S1
ApplicationDeterminesEnd of Curve
.3
1
TIM
E IN
SEC
ONDS
1000
500
300
200
100
TIME IN
SECONDS
400
900800700600
50
30
20
10
40
90807060
5
3
2
1
4
9876
.5
.3
.2
.1
.4
.9
.8
.7
.6
.05
.03
.02
.01
.04
.09
.08
.07
.06
1000
500
300
200
100
400
900800700600
50
30
20
10
40
90807060
5
3
2
1
4
9876
.5
.3
.2
.1
.4
.9
.8
.7
.6
.05
.03
.02
.01
.04
.09
.08
.07
.06
CURRENT IN MULTIPLES OF LONG DELAY SETTINGS I r.1.07.05 .7.5.4.3.2 1 85432 10 3020
.1.07.05 .7.5.4.3 812. 543 04012 3020
CURRENT IN MULTIPLES OF LONG DELAY SETTINGS I rCURRENT IN kA
6
6IMPORTANT
7543 02012
.3
22.5 4
6
AvailableI2t ShapeShort Delay TimeSettingsIndicated by *
.5
.3
.2
.1
.4
.01705040302010
3.1
.4
.5
.2
Available FlatResponseShort DelayTime Settings.1, .2, .3, .4, or .5
FixedInstantaneousOverride
4
.1*
SDM
2
2.3*
.5* 2
Types RD, CRD, RDC, CRDC Equipped With Digitrip RMS 510/610/810 Trip Units. TypicalLong Delay/Short Delay Time-Phase Current Characteristic Curve Based on Ir
Series C R-Frame Circuit Breakers with
DIGItRIP RMS 510/610/810 trip Units
typical Long Delay and Short Delay
time-Phase Current Characteristic Curve (LS)
1600 1600 50/60 RP6R16A1601600 1250 50 RP6R16A1251600 1200 50/60 RP6R16A1201600 1000 50/60 RP6R16A1001600 800 50/60 RP6R16A0802000 2000 50/60 RP6R20A2002000 1600 50/60 RP6R20A1602000 1250 50 RP6R20A1252000 1200 50/60 RP6R20A1202000 1000 50/60 RP6R20A1002500 2500 50/60 RP6R25A2502500 2000 50/60 RP6R25A2002500 1600 50/60 RP6R25A160
Maximum Ampere Rating
Available Rating Plugs Marked 50/60 HzAmpere Rating(In)
FrequencyHz
CatalogNumber
UL/CSA rms Sym. kA, 50/60 Hz
RD, CRD 125 65 50RDC, CRDC 200 100 65
240V 480V 600VBreaker Type
Interrupting Rating
Utilization Category A Ics = 0 .5 IcuUimp = 8kV
IEC 60947-2 rms Sym. kA, 50/60 Hz
RD, CRD 125 65 50RDC, CRDC 200 100 65
220-240V 380-415V 500VBreaker Type
tolerances
LDS Range = 150% to 130% of Setting .LDT Range = 67% to 100% of Setting, at 6 x Ir .SDS Range = 90% to 110% of Setting .
notes:
1 Long Time Memory function automatically shortens long time delay as overload conditions recur .2 With zone interlocking on short delay utilized and no restraining signal, the minimum time band SDM applies – regardless of setting .3 The end of the curve is determined by the interrupting rating of the circuit breaker . See above tabulation .4 For high fault current levels a fixed instantaneous override is provided at 17,500A (Tolerance ± 15%) .5 The Rating Plug is for 50 and 60 Hz applications .6 Not UL/CSA listed .7 For Types RD and RDC only .8 Curves apply from –20°C to +55°C ambient . Temperatures above 95°C cause automatic trip . For possible ampere derating for ambient above 40°C, refer to Eaton .
5
6
6
777
8
Figure 2. Typical Long Delay/Short Delay Time-Phase Current Characteristic Curve Based on In - Curve Number SC-5627-93, October 1997
6
Time Current Curves TD012038ENEffective April 2014
Series CR-Frame
eaton www.eaton.com
A K
A
B
D
I2t Shape for GroundTime Delay Settings Indicated by *
AvailableGround FaultTime DelaySettingsFlat Response
.4
GDM
1
AvailableGround FaultSettings (Typical)for Exact Valuesand Tolerances ofLetter Codes,See Chart
.2 1
.1 1
.3 1
.5 1
.1* 1
.3* 1
.5* 1
GDM
AvailableGround FaultTime DelaySettingsI2t Response
CURRENT IN MULTIPLES OF PLUG RATING I n
TIM
E IN
SEC
ONDS
1000
500
300
200
100
TIME IN
SECONDS
400
900800700600
50
30
20
10
40
90807060
5
3
2
1
4
9876
.5
.3
.2
.1
.4
.9
.8
.7
.6
.05
.03
.02
.01
.04
.09
.08
.07
.06
1000
500
300
200
100
400
900800700600
50
30
20
10
40
90807060
5
3
2
1
4
9876
.5
.3
.2
.1
.4
.9
.8
.7
.6
.05
.03
.02
.01
.04
.09
.08
.07
.06
CURRENT IN MULTIPLES OF PLUG RATING I n.1.07.05 .7.5.4.3.2 1 75432 1 .7.5.4.3.2 1 75432 10
.1.07.05 .7.5.4.3.2 1 75432 1 .7.5.4.3.2 1 75432 10
800
1000
1200
1250
1600
2000
2500
200
250
300
312
400
500
625
Code A� B� C� D� E F H K
Ground Fault Settings (Amperes) ���
I n p
lug
rat
ing
s av
aila
ble 240
300
360
375
480
600
750
280
350
420
438
560
700
875
320
400
480
500
640
800
1000
400
500
600
625
800
1000
1200
480
600
720
750
960
1200
1200
600
750
900
938
1200
1200
1200
800
1000
1200
1200
1200
1200
1200
Figure 3. Typical Ground Fault/Protection Time/Current Characteristic Curve Based on In - Curve Number SC-5628-93, October 1997
Types RD, CRD, RDC, CRDC Equipped With Digitrip RMS 510/610/810 Trip Units. TypicalGround Fault/Protection Time/Current Characteristic Curve Based on In
Series C R-Frame Circuit Breakers with
DIGItRIP RMS 510/610/810 trip Units
typical time-Ground Current Characteristic Curve (G)
notes:
1 With zone interlocking on ground fault utilized and no restraining signal, the minimum time band GDM applies – regardless of setting .
2 Except as noted tolerances on current levels are ± 10% of values shown in chart .
3 The rating plug is for 50 Hz and 60 Hz, applications .
4 All tabulated values are based on the use of a residual sensing scheme with the same rated current sensor in all phase and neutral conductors .
5 For Testing Purposes Only: When using an external single phase current source to check low level ground fault current settings, it is advisable to use the Auxiliary Power Module (APM) . See TEST PROCEDURES in Instruction Leaflet .
7
Time Current Curves TD012038ENEffective April 2014
Series CR-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
N
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 Ir±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 )r0.5 to 1 x I = In rin 0.01 increments
ApplicationDeterminesEnd of Curve
.5
.3
.1
r
r
24
7
4
2
Figure 4. Long Delay I2T, Short Delay I2T - Curve Number SC-6336-96, October 1997
R-Frame Circuit Breakers Equipped with 1600/2000A Digitrip OPTIM Trip Units; Long Delay I2t, Short Delay I2t
Circuit Breaker time/Current Curves (Phase Current)
Series C R - Frame Circuit Breakers
equipped With 1600/2000a Digitrip optim trip Units
Response: LonG DeLaY I2t, SHoRt DeLaY I2t
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 Pickup 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 Pickup 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 .
1600 1600 ORPL16A160 640 -1600 960 - 128001600 1250 ORPL16A125 500 -1250 750 - 100001600 1200 ORPL16A120 480 -1200 720 - 96001600 1000 ORPL16A100 400 -1000 600 - 80001600 800 ORPL16A080 320 - 800 480 - 64002000 2000 ORPL20A200 800 -2000 1200 - 160002000 1600 ORPL20A160 640 -1600 960 - 128002000 1250 ORPL20A125 500 -1250 750 - 100002000 1200 ORPL20A120 480 -1200 720 - 96002000 1000 ORPL20A100 400 -1000 600 - 8000
Maximum Ampere Rating
Available Rating Plugs
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
RD, CRD 125 65 50RDC, CRDC 200 100 65
240V 480V 600VBreaker Type
Interrupting Rating
IEC 60947-2 rms Sym. kA, 50/60 Hz
Icu Ics Icu Ics Icu IcsRD, CRD 135 100 70 50 25 13RDC, CRDC 200 100 100 50 35 18
240V 415V 690VBreaker Type
U IMP = 8kV Utilization Category A
8
Time Current Curves TD012038ENEffective April 2014
Series CR-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
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
AvailableLong Delay (I )rSettings0.5 to 1 x I = In rin 0.01 increments
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
ApplicationDeterminesEnd of Curve
.1
.5
.3
r
r
24
7
4
2
Figure 5. Long Delay I2T, Short Delay Flat - Curve Number SC-6337-96, October 1997
R-Frame Circuit Breakers Equipped with 1600/2000A Digitrip OPTIM Trip Units; Long Delay I2t, Short Delay Flat
Circuit Breaker time/Current Curves (Phase Current)
Series C R - Frame Circuit Breakers
equipped With 1600/2000a Digitrip optim trip Units
Response: LonG DeLaY I2t, SHoRt DeLaY FLat
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 Pickup 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 Pickup 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 .
1600 1600 ORPL16A160 640 -1600 960 - 128001600 1250 ORPL16A125 500 -1250 750 - 100001600 1200 ORPL16A120 480 -1200 720 - 96001600 1000 ORPL16A100 400 -1000 600 - 80001600 800 ORPL16A080 320 - 800 480 - 64002000 2000 ORPL20A200 800 -2000 1200 - 160002000 1600 ORPL20A160 640 -1600 960 - 128002000 1250 ORPL20A125 500 -1250 750 - 100002000 1200 ORPL20A120 480 -1200 720 - 96002000 1000 ORPL20A100 400 -1000 600 - 8000
Maximum Ampere Rating
Available Rating Plugs
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
RD, CRD 125 65 50RDC, CRDC 200 100 65
240V 480V 600VBreaker Type
Interrupting Rating
IEC 60947-2 rms Sym. kA, 50/60 Hz
Icu Ics Icu Ics Icu IcsRD, CRD 135 100 70 50 25 13RDC, CRDC 200 100 100 50 35 18
240V 415V 690VBreaker Type
U IMP = 8kV Utilization Category A
9
Time Current Curves TD012038ENEffective April 2014
Series CR-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
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 )r0.5 to 1 x I = In rin 0.01 increments
5
ApplicationDeterminesEnd of Curve
5
1
.5
.1
r
r
Figure 6. Long Delay I4T, Short Delay Flat - Curve Number SC-6338-96, October 1997
R-Frame Circuit Breakers Equipped with 1600/2000A Digitrip OPTIM Trip Units; Long Delay I4t, Short Delay Flat
Circuit Breaker time/Current Curves (Phase Current)
Series C R - Frame Circuit Breakers
equipped With 1600/2000a Digitrip optim trip Units
Response: LonG DeLaY I2t, SHoRt DeLaY FLat
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 Pickup 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 Pickup 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 .
1600 1600 ORPL16A160 640 -1600 960 - 128001600 1250 ORPL16A125 500 -1250 750 - 100001600 1200 ORPL16A120 480 -1200 720 - 96001600 1000 ORPL16A100 400 -1000 600 - 80001600 800 ORPL16A080 320 - 800 480 - 64002000 2000 ORPL20A200 800 -2000 1200 - 160002000 1600 ORPL20A160 640 -1600 960 - 128002000 1250 ORPL20A125 500 -1250 750 - 100002000 1200 ORPL20A120 480 -1200 720 - 96002000 1000 ORPL20A100 400 -1000 600 - 8000
Maximum Ampere Rating
Available Rating Plugs
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
RD, CRD 125 65 50RDC, CRDC 200 100 65
240V 480V 600VBreaker Type
Interrupting Rating
IEC 60947-2 rms Sym. kA, 50/60 Hz
Icu Ics Icu Ics Icu IcsRD, CRD 135 100 70 50 25 13RDC, CRDC 200 100 100 50 35 18
240V 415V 690VBreaker Type
U IMP = 8kV Utilization Category A
10
Time Current Curves TD012038ENEffective April 2014
Series CR-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
CURRENT IN MULTIPLES OF PLUG RATING I
CURRENT IN MULTIPLES OF PLUG RATING I AMPERES
2000
3000
30,0
00
4000
40,0
00
5000
50,0
00
6000
60,0
00
7000
70,0
00
8000
80,0
00
9000
10,0
00
20,0
00
1000
Available InstantaneousPickup Settings2 to 10 x In ± 10%In 0.1 Increments
Available Flat ResponseShort Delay Time Settings0.1 to 0.5 seconds in0.01 second increments
FixedInstantaneousOverride
ApplicationDeterminesEnd of Curve
.3
.1
.5
n
n
102
Figure 7. Instantaneous and Override, 1600 Amperes - Curve Number SC-6342-96, October 1997
R-Frame Circuit Breakers Equipped with 1600A Digitrip OPTIM Trip Units; Instantaneous and Override
Circuit Breaker time/Current Curves (Phase Current)
Series C R - Frame Circuit Breakers
equipped With 1600a Digitrip optim trip Units
Response: InStantaneoUS anD oVeRRIDe
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 . The instantaneous settings have conventional 100%, +/- 10% as 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 .
1600 1600 ORPL16A160 3200 -16000 14875 -201251600 1250 ORPL16A125 2500 -12500 14875 -201251600 1200 ORPL16A120 2400 -12000 14875 -201251600 1000 ORPL16A100 2000 -10000 14875 -201251600 800 ORPL16A080 1600 - 8000 14875 -20125
Maximum Ampere Rating
Available Rating Plugs
Ampere Rating(In)
Rating Plug Catalog Number
InstantaneousPickup Range2 to 10 x InAmperes
OverrideAmperes
UL/CSA rms Sym. kA, 50/60 Hz
RD, CRD 125 65 50RDC, CRDC 200 100 65
240V 480V 600VBreaker Type
Interrupting Rating
IEC 60947-2 rms Sym. kA, 50/60 Hz
Icu Ics Icu Ics Icu IcsRD, CRD 135 100 70 50 25 13RDC, CRDC 200 100 100 50 35 18
240V 415V 690VBreaker Type
U IMP = 8kV Utilization Category A
11
Time Current Curves TD012038ENEffective April 2014
Series CR-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
CURRENT IN MULTIPLES OF PLUG RATING I
CURRENT IN MULTIPLES OF PLUG RATING I AMPERES
2000
3000
30,0
00
4000
40,0
00
5000
50,0
00
6000
60,0
00
7000
70,0
00
8000
80,0
00
9000
10,0
00
20,0
00
1000
Available InstantaneousPickup Settings2 to 8 x In ± 10%In 0.1 Increments
Available Flat ResponseShort Delay Time Settings0.1 to 0.5 secondsin 0.01 second increments
FixedInstantaneousOverride
ApplicationDeterminesEnd of Curve
.3
.1
.5
n
n
2 8
Figure 8. Instantaneous and Override, 2000 Amperes - Curve Number SC-6343-96, October 1997
R-Frame Circuit Breakers Equipped with 2000A Digitrip OPTIM Trip Units; Instantaneous and Override
Circuit Breaker time/Current Curves (Phase Current)
Series C R - Frame Circuit Breakers
equipped With 2000a Digitrip optim trip Units
Response: InStantaneoUS anD oVeRRIDe
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 . The instantaneous settings have conventional 100%, +/- 10% as 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 .
2000 2000 ORPL20A200 4000 -16000 14875 -201252000 1600 ORPL20A160 3200 -12800 14875 -201252000 1250 ORPL20A125 2500 -10000 14875 -201252000 1200 ORPL20A120 2400 - 9600 14875 -201252000 1000 ORPL20A100 2000 - 8000 14875 -20125
Maximum Ampere Rating
Available Rating Plugs
Ampere Rating(In)
Rating Plug Catalog Number
InstantaneousPickup Range2 to 8 x InAmperes
OverrideAmperes
UL/CSA rms Sym. kA, 50/60 Hz
RD, CRD 125 65 50RDC, CRDC 200 100 65
240V 480V 600VBreaker Type
Interrupting Rating
IEC 60947-2 rms Sym. kA, 50/60 Hz
Icu Ics Icu Ics Icu IcsRD, CRD 135 100 70 50 25 13RDC, CRDC 200 100 100 50 35 18
240V 415V 690VBreaker Type
U IMP = 8kV Utilization Category A
12
Time Current Curves TD012038ENEffective April 2014
Series CR-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 RATING PLUG I
CURRENT IN MULTIPLES OF RATING PLUG 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
I t Slope forGround FaultTime Settings
2
Availaible I t ResponseGround Fault Time Settings0.1 to 0.5 secondsin 0.01 second increments
2
Available Ground FaultPickup Settings ±10%in 0.1 increments
Available Flat ResponseGround Fault Time Settings0.1 to 0.5 secondsin 0.01 second increments
Flat Shape forGround FaultTime Settings
.5
.3
.1
n
n
1.0
.5
.5
.3
.1
.2
Figure 9. Ground Fault or Ground Fault Alarm Only, 1600 Amperes - Curve Number SC-6345-96, October 1997
R-Frame Circuit Breakers Equipped with 1600A Digitrip OPTIM Trip Units; Ground Fault or Ground Fault Alarm Only
Circuit Breaker time/Current Curves (Ground Current)
Series C R - Frame Circuit Breakers
equipped With 1600a Digitrip optim trip Units
Response: GRoUnD FaULt tRIP oR GRoUnD FaULt aLaRM onLY
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 . Ground fault level is electronically limited to a maximum of 1200 Amperes .
6 . The ground fault settings have conventional 100%, +/- 10% 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 .
1600 1600 ORPL16A160 400 -12001600 1250 ORPL16A125 312.5 -12001600 1200 ORPL16A120 300 -12001600 1000 ORPL16A100 250 -10001600 800 ORPL16A080 200 - 800
Maximum Ampere Rating
Available Rating Plugs
Ampere Rating(In)
Rating Plug Catalog Number
Ground FaultPickup RangeAmperes
UL/CSA rms Sym. kA, 50/60 Hz
RD, CRD 125 65 50RDC, CRDC 200 100 65
240V 480V 600VBreaker Type
Interrupting Rating
IEC 60947-2 rms Sym. kA, 50/60 Hz
Icu Ics Icu Ics Icu IcsRD, CRD 135 100 70 50 25 13RDC, CRDC 200 100 100 50 35 18
240V 415V 690VBreaker Type
U IMP = 8kV Utilization Category A
13
Time Current Curves TD012038ENEffective April 2014
Series CR-Frame
eaton www.eaton.com
10,000
5,000
3,000
2,000
1,000
500
300
200
100
50
30
20
1 M
INU
TE
1 H
OU
R2
HO
UR
S
CURRENT IN MULTIPLES OF RATING PLUG I
CURRENT IN MULTIPLES OF RATING PLUG I
.1 .2 .3 .4 .5 .6 .7 .8 .9 1 2 3 4 5 6 7 8 9 10
.01
10
5
3
2
.5
.3
.2
.1
.05
.03
.02
SD
NO
CE
SNI
EMI
T
1
.01
.5
.3
.2
.1
.05
.03
.02
1
.1 .2 .3 .4 .5 .6 .7 .8 .9 1 2 3 4 5 6 7 8 9 10 .2 .3 .4 .5 .6 .7 .8 .9 1 2 3 4 5 6 7 8 9 10
I t Slope forGround FaultTime Settings
2
Availaible I t ResponseGround Fault Time Settings0.1 to 0.5 secondsin 0.01 second increments
2
Available Ground FaultPickup Settings ±10%in 0.1 increments
Available Flat ResponseGround Fault Time Settings0.1 to 0.5 secondsin 0.01 second increments
Flat Shape forGround FaultTime Settings
.5
.3
.1
n
n
1.0
.5
.5
.3
.1
.2
Figure 10. Ground Fault or Ground Fault Alarm Only, 2000 Amperes - Curve Number SC-6346-96, October 1997
R-Frame Circuit Breakers Equipped with 2000A Digitrip OPTIM Trip Units; Ground Fault or Ground Fault Alarm Only
Circuit Breaker time/Current Curves (Ground Current)
Series C R - Frame Circuit Breakers
equipped With 2000a Digitrip optim trip Units
Response: GRoUnD FaULt tRIP oR GRoUnD FaULt aLaRM onLY
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 . Ground fault level is electronically limited to a maximum of 1200 Amperes .
6 . The ground fault settings have conventional 100%, +/- 10% 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 .
2000 2000 ORPL20A200 500 -12002000 1600 ORPL20A160 400 -12002000 1250 ORPL20A125 312.5 -12002000 1200 ORPL20A120 300 -12002000 1000 ORPL20A100 250 -1000
Maximum Ampere Rating
Available Rating Plugs
Ampere Rating(In)
Rating Plug Catalog Number
Ground FaultPickup RangeAmperes
UL/CSA rms Sym. kA, 50/60 Hz
RD, CRD 125 65 50RDC, CRDC 200 100 65
240V 480V 600VBreaker Type
Interrupting Rating
IEC 60947-2 rms Sym. kA, 50/60 Hz
Icu Ics Icu Ics Icu IcsRD, CRD 135 100 70 50 25 13RDC, CRDC 200 100 100 50 35 18
240V 415V 690VBreaker Type
U IMP = 8kV Utilization Category A
14
Time Current Curves TD012038ENEffective April 2014
Series CR-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
MinimumTotalClearingTime
MaximumTotalClearingTime
AvailableLong DelayTime SettingsShown @ 6 x I r
2-24 seconds +0 ⁄-30%in 0.1 secondincrements
ApplicationDeterminesEnd of Curve
AvailableShort DelayPickup Settings1.5 to 6.4 x Ir±5% in 0.1increments
.5
.3
.1
Available I t SlopeShort Delay Time Settings0.1 to 0.5 seconds in0.01 second increments
2
Available Long DelayPickup Settings (I )r0.5 to 1 x I = In rin 0.01 increments
r
r
24
7
4
2
Figure 11. Long Delay I2T, Short Delay I2T - Curve Number SC-6339-96, October 1997
R-Frame Circuit Breakers Equipped with 2500A Digitrip OPTIM Trip Units; Long Delay I2t, Short Delay I2t
Circuit Breaker time/Current Curves (Phase Current)
Series C R - Frame Circuit Breakers
equipped With 2500a Digitrip optim trip Units
Response: LonG DeLaY I2t, SHoRt DeLaY I2t
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 .
2500 2500 ORPL25A250 1000 -2500 1500 - 160002500 2000 ORPL25A200 800 -2000 1200 - 128002500 1600 ORPL25A160 640 -1600 960 - 10240
Maximum Ampere Rating
Available Rating Plugs
Ampere Rating(In)
Rating Plug Catalog Number
UL/CSA rms Sym. kA, 50/60 Hz
RD 125 65 50RDC 200 100 65
240V 480V 600VBreaker Type
Interrupting Rating
IEC 60947-2 rms Sym. kA, 50/60 Hz
Icu Ics Icu Ics Icu IcsRD 135 100 70 50 25 13RDC 200 100 100 50 35 18
240V 415V 690VBreaker Type
U IMP = 8kV Utilization Category A
Long DelayPickup Range0.4 to 1 x InAmperes
Short DelayPickup Range1.5 to 6.4 x IrAmperes
15
Time Current Curves TD012038ENEffective April 2014
Series CR-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
Available Rating Plugs
250020001600
ORPL25A250ORPL25A200ORPL25A160
1000 -2500800 -2000640 -1600
AmpereRating
(I )n
Rating PlugCatalogNumber
Short DelayPickup Range1.5 to 6.4 x I
Amperesr
MaximumAmpereRating
2500 1500 - 160001200 - 12800960 - 10240
MinimumTotalClearingTime
MaximumTotalClearingTime
ApplicationDeterminesEnd of Curve
.1
.5
.3
AvailableLong DelayTime SettingsShown @ 6 x I r2-24 seconds +0 ⁄-30%in 0.1 secondincrements
Available FlatShort Delay Time Settings0.1 to 0.5 secondsin 0.01 second increments
AvailableShort DelayPickup Settings1.5 to 6.4 x Ir±5% in 0.1increments
Available Long DelayPickup Settings (I )r0.5 to 1 x I = In rin 0.01 increments
Notes1) For field testing primary injection methods, follow NEMA AB4-1991 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 five 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 ground fault time / current curves see SC-6345-96 (1600A), SC-6346-96 (2000A), andSC-6347-96 (2500A)
6) This curve is shown as a multiple of the Long Delay Pick-up Setting, (I ). This I setting isprogrammed in primary value amperes via a Breaker Interface Module, or OPTIMizer,or a Remote PC (IMPACC System).
7) The Long Delay Pick-up Point (indicated by a flashing LED on the product) nominally occurs
8) For additional curve tolerances contact Cutler-Hammer.9) Total clearing times shown include the response times of the trip unit, the breaker opening, and the extinction of the arcing current.
at 116% of the I current, with a +/- 5% tolerance. The short delay settings have conventional100%, +/- 5% as the pickup points.
r r
r
Long DelayPickup Range
0.4 to 1 x IAmperes
n
Interrupting Rating @ 50/60 Hz RMS Sym. Amperes (kA)
Breaker
Type
RDRDC
UL / CSA
Volts
kA
240
125200
480
65100
600
5065
IEC 947-2
Volts
RDRDC
096042
U = 8kVIMP
415
kA
Rating
Utilization Category A
ICU ICS
135200
100100
ICU ICS
70100
5050
ICU ICS
2535
1318
Circuit Breaker Time/Current Curves (Phase Current)Series C R - Frame Circuit BreakersEquipped With 2500A Digitrip Optim Trip UnitsResponse: LONG DELAY I 2t, SHORT DELAY FLAT
r
r
24
7
4
2
Figure 12. Long Delay I2T, Short Delay Flat - Curve Number SC-6340-96, October 1997
R-Frame Circuit Breakers Equipped with 2500A Digitrip OPTIM Trip Units; Long Delay I2t, Short Delay Flat
Circuit Breaker time/Current Curves (Phase Current)
Series C R - Frame Circuit Breakers
equipped With 2500a Digitrip optim trip Units
Response: LonG DeLaY I2t, SHoRt DeLaY FLat
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 .
2500 2500 ORPL25A250 1000 -2500 1500 - 160002500 2000 ORPL25A200 800 -2000 1200 - 128002500 1600 ORPL25A160 640 -1600 960 - 10240
Maximum Ampere Rating
Available Rating Plugs
Ampere Rating(In)
Rating Plug Catalog Number
UL/CSA rms Sym. kA, 50/60 Hz
RD 125 65 50RDC 200 100 65
240V 480V 600VBreaker Type
Interrupting Rating
IEC 60947-2 rms Sym. kA, 50/60 Hz
Icu Ics Icu Ics Icu IcsRD 135 100 70 50 25 13RDC 200 100 100 50 35 18
240V 415V 690VBreaker Type
U IMP = 8kV Utilization Category A
Long DelayPickup Range0.4 to 1 x InAmperes
Short DelayPickup Range1.5 to 6.4 x IrAmperes
16
Time Current Curves TD012038ENEffective April 2014
Series CR-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
Available Rating Plugs
250020001600
ORPL25A250ORPL25A200ORPL25A160
1000 -2500800 -2000640 -1600
AmpereRating
(I )n
Rating PlugCatalogNumber
Short DelayPickup Range1.5 to 6.4 x I
Amperesr
MaximumAmpereRating
2500 1500 - 160001200 - 12800960 - 10240
ApplicationDeterminesEnd of Curve
MinimumTotalClearingTime
MaximumTotalClearingTime
AvailableLong DelayTime SettingsShown @ 6 x I r1-5 seconds +10 ⁄-40%in 0.1 secondincrements
Available FlatShort Delay Time Settings0.1 to 0.5 secondsin 0.01 second increments
AvailableShort DelayPickup Settings1.5 to 6.4 x Ir±5% in 0.1increments
Available Long DelayPickup Settings (I )r0.5 to 1 x I = In rin 0.01 increments
Notes1) For field testing primary injection methods, follow NEMA AB4-1991 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 five 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 ground fault time / current curves see SC-6345-96 (1600A), SC-6346-96 (2000A), andSC-6347-96 (2500A)
6) This curve is shown as a multiple of the Long Delay Pick-up Setting, (I ). This I setting isprogrammed in primary value amperes via a Breaker Interface Module, or OPTIMizer,or a Remote PC (IMPACC System).
7) The Long Delay Pick-up Point (indicated by a flashing LED on the product) nominally occursat 116% of the I current, with a +/- 5% tolerance. The short delay settings have conventional100%, +/- 5% as the pickup points.
r r
r
Long DelayPickup Range
0.4 to 1 x IAmperes
n
Interrupting Rating @ 50/60 Hz RMS Sym. Amperes (kA)
Breaker
Type
RDRDC
UL / CSA
Volts
kA
240
125200
480
65100
600
5065
IEC 947-2
Volts
RDRDC
096042
U = 8kVIMP
415
kA
Rating
Utilization Category A
ICU ICS
135200
100100
ICU ICS
70100
5050
ICU ICS
2535
1318
.5
.1
8) For additional curve tolerances contact Cutler-Hammer.9) Total clearing times shown include the response times of the trip unit, the breaker opening, and the extinction of the arcing current.
Circuit Breaker Time/Current Curves (Phase Current)Series C R - Frame Circuit BreakersEquipped With 2500A Digitrip Optim Trip UnitsResponse: LONG DELAY I 4t, SHORT DELAY FLAT
r
r
Figure 13. Long Delay I4T, Short Delay Flat - Curve Number SC-6341-96, October 1997
R-Frame Circuit Breakers Equipped with 2500A Digitrip OPTIM Trip Units; Long Delay I4t, Short Delay Flat
Circuit Breaker time/Current Curves (Phase Current)
Series C R - Frame Circuit Breakers
equipped With 2500a Digitrip optim trip Units
Response: LonG DeLaY I4t, SHoRt DeLaY FLat
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 .
2500 2500 ORPL25A250 1000 -2500 1500 - 160002500 2000 ORPL25A200 800 -2000 1200 - 128002500 1600 ORPL25A160 640 -1600 960 - 10240
Maximum Ampere Rating
Available Rating Plugs
Ampere Rating(In)
Rating Plug Catalog Number
UL/CSA rms Sym. kA, 50/60 Hz
RD 125 65 50RDC 200 100 65
240V 480V 600VBreaker Type
Interrupting Rating
IEC 60947-2 rms Sym. kA, 50/60 Hz
Icu Ics Icu Ics Icu IcsRD 135 100 70 50 25 13RDC 200 100 100 50 35 18
240V 415V 690VBreaker Type
U IMP = 8kV Utilization Category A
Long DelayPickup Range0.4 to 1 x InAmperes
Short DelayPickup Range1.5 to 6.4 x IrAmperes
17
Time Current Curves TD012038ENEffective April 2014
Series CR-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
CURRENT IN MULTIPLES OF PLUG RATING I
CURRENT IN MULTIPLES OF PLUG RATING I AMPERES
2000
3000
30,0
00
4000
40,0
00
5000
50,0
00
6000
60,0
00
7000
70,0
00
8000
80,0
00
9000
10,0
00
20,0
00
1000
Available Rating Plug
250020001600
ORPL25A250ORPL25A200ORPL25A160
AmpereRating
(I )n
Rating PlugCatalogNumber
14875 -2012514875 -2012514875 -20125
OverrideAmperes
5000 -160004000 -128003200 -10240
InstantaneousPickup Range2 to 6.4 x In
Amperes
MaximumAmpereRating
2500
6.4
Available InstantaneousPickup Settings2 to 6.4 x In ± 10%In 0.1 Increments
ApplicationDeterminesEnd of Curve
Available Flat ResponseShort Delay Time Settings0.1 to 0.5 secondsin 0.01 second increments
FixedInstantaneousOverride
Notes1) For field testing primary injection methods, follow NEMA AB4-1991 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 five 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 ground fault time / current curves see SC-6345-96 (1600A), SC-6346-96 (2000A), andSC-6347-96 (2500A)
6) The instantaneous 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.
Interrupting Rating @ 50/60 Hz RMS Sym. Amperes (kA)
Breaker
Type
RDRDC
UL / CSA
Volts
kA
240
125200
480
65100
600
5065
IEC 947-2
Volts
RDRDC
096042
U = 8kVIMP
415
kA
Rating
Utilization Category A
ICU ICS
135200
100100
ICU ICS
70100
5050
ICU ICS
2535
1318
.3
.1
.5
Circuit Breaker Time/Current Curves (Phase Current)Series C R - Frame Circuit BreakersEquipped With 2500A Digitrip Optim Trip UnitsResponse: INSTANTANEOUS AND OVERRIDE
n
n
2
Figure 14. Instanteneous and Override - Curve NumberSC-6344-96, October 1997
R-Frame Circuit Breakers Equipped with 2500A Digitrip OPTIM Trip Units; Instantaneous and Override
Circuit Breaker time/Current Curves (Phase Current)
Series C R - Frame Circuit Breakers
equipped With 2500a Digitrip optim trip Units
Response: InStantaneoUS anD oVeRRIDe
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 . The instantaneous settings have conventional 100%, +/- 10% as 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 .
2500 2500 ORPL25A250 5000 -16000 14875 -201252500 2000 ORPL25A200 4000 -12800 14875 -201252500 1600 ORPL25A160 3200 -10240 14875 -20125
Maximum Ampere Rating
Available Rating Plugs
Ampere Rating(In)
Rating Plug Catalog Number
UL/CSA rms Sym. kA, 50/60 Hz
RD 125 65 50RDC 200 100 65
240V 480V 600VBreaker Type
Interrupting Rating
IEC 60947-2 rms Sym. kA, 50/60 Hz
Icu Ics Icu Ics Icu IcsRD 135 100 70 50 25 13RDC 200 100 100 50 35 18
240V 415V 690VBreaker Type
U IMP = 8kV Utilization Category A
InstantaneousPickup Range2 to 6.4 x InAmperes
OverrideAmperes
18
Time Current Curves TD012038ENEffective April 2014
Series CR-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 RATING PLUG I
CURRENT IN MULTIPLES OF RATING PLUG 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 Rating Plugs
I t Slope forGround FaultTime Settings
2
Availaible I t ResponseGround Fault Time Settings0.1 to 0.5 secondsin 0.01 second increments
2
.5
.1
Available Flat ResponseGround Fault Time Settings0.1 to 0.5 secondsin 0.01 second increments
Flat Shape forGround FaultTime Settings
Notes1) For field testing primary injection methods, follow NEMA AB4-1991 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 five 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) Ground fault level is electronically limited to a maximum of 1200 Amperes.6) For phase current curves, see SC-6336-96, SC-6337-96, SC-6338-96, SC-6339-96,
SC-6340-96, SC-6341-96, SC-6342-96, SC-6343-96, and SC-6344-96.7) The ground fault settings have conventional 100%, +/- 10% as 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, and the extinction of the arcing current.
250020001600
ORPL25A250ORPL25A200ORPL25A160
AmpereRating
(I )n
Rating PlugCatalogNumber
625 -1200500 -1200400 -1200
Ground FaultPickup Range
Amperes
MaximumAmpereRating
2500
Interrupting Rating @ 50/60 Hz RMS Sym. Amperes (kA)
Breaker
Type
RDRDC
UL / CSA
Volts
kA
240
125200
480
65100
600
5065
IEC 947-2
Volts
RDRDC
096042
U = 8kVIMP
415
kA
Rating
Utilization Category A
ICU ICS
135200
100100
ICU ICS
70100
5050
ICU ICS
2535
1318
Available Ground FaultPickup Settings ±10%in 0.01 increments
Circuit Breaker Time/Current Curves (Ground Current)Series C R - Frame Circuit BreakersEquipped With 2500A Digitrip Optim Trip UnitsResponse: GROUND FAULT TRIP OR GROUND FAULT ALARM ONLY
.5
.1
n
n
1.0
.2
Figure 15. Ground Fault or Ground Fault Alarm Only - Curve Number SC-6347-96, October 1997
R-Frame Circuit Breakers Equipped with 2500A Digitrip OPTIM Trip Units; Ground Fault or Ground Fault Alarm Only
Circuit Breaker time/Current Curves (Phase Current)
Series C R - Frame Circuit Breakers
equipped With 2500a Digitrip optim trip Units
Response: GRoUnD FaULt tRIP oR GRoUnD FaULt aLaRM onLY
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 . Ground fault level is electronically limited to a maximum of 1200 Amperes .
6 . The ground fault settings have conventional 100%, +/- 10% 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 .
2500 2500 ORPL25A250 625 -12002500 2000 ORPL25A200 500 -12002500 1600 ORPL25A160 400 -1200
Maximum Ampere Rating
Available Rating Plugs
Ampere Rating(In)
Rating Plug Catalog Number
UL/CSA rms Sym. kA, 50/60 Hz
RD 125 65 50RDC 200 100 65
240V 480V 600VBreaker Type
Interrupting Rating
IEC 60947-2 rms Sym. kA, 50/60 Hz
Icu Ics Icu Ics Icu IcsRD 135 100 70 50 25 13RDC 200 100 100 50 35 18
240V 415V 690VBreaker Type
U IMP = 8kV Utilization Category A
Ground FaultPickup RangeAmperes
19
Time Current Curves TD012038ENEffective April 2014
Series CR-Frame
eaton www.eaton.com
Eaton1000 Eaton BoulevardCleveland, OH 44122United StatesEaton .com
© 2014 EatonAll Rights ReservedPrinted in USAPublication No . TD012038EN / KDCApril 2014
Eaton is a registered trademark .
All other trademarks are property of their respective owners .
Series CR-Frame
Time Current Curves TD012038ENEffective April 2014