Time Current Curves TD012029EN Effective February 2016 Contents Series G NG-Frame Digitrip 310+ Electronic Trip Unit types NGS, NGH, NGC, NGU Page Catalog Number Selection 3 Long Delay Response and Short Delay with Flat Response and Override (LSI, LSIG, ALSI, ALSIG) TC01210010E 4 Long Delay Response and Short Delay with I 2 T Response Curve and Override (LS, LSG) TC01210011E 5 Ground Fault Delay Response Curve (LSG, LSIG, ALSIG) TC01210012E 6 Maintentance Mode / Instantaneous Setting (ALSI, ALSIG) TC01210016E 7 Digitrip OPTIM 550 Trip Unit type NHH High Instantaneous Long Delay I 2 T and Short Delay Flat TC01207016E 8 Long Delay I 4 T and Short Delay Flat TC01207017E 9 Instantaneous and Override TC01207018E 10 Digitrip 310 Electronic Trip Units Eaton/Cutler-Hammer NG_ _ _ _T_ _W Electronic LD and SD with I 2 T Response TC01209003E 11 Eaton/Cutler-Hammer NG_ _ _ _T_ _W Electronic LD and SD with Flat Response TC01209004E 12 Eaton/Cutler-Hammer NG_ _ _ _T_ _W Electronic LD and SD with Flat Response (1600A) TC01209006E 13 Series C ND-Frame Catalog Number Selection 14 NES Digitrip RMS 310 Electronic Trip Unit types ND, CND, HND, CHND, NDC, CNDC I 2 T Ramp Short Time Delay SC-5375-92A 15 Adjustable Short Time Delay SC-5376-92A 16 Ground Fault Protection SC-5377-92A 17 Digitrip OPTIM 550 & 1050 Electronic Trip unit types ND, HND, NDC Long Delay I 2 T, Short Delay I 2 T SC-6331-96 18 Long Delay I 2 T, Short Delay Flat SC-6332-96 19 Long Delay I 4 T, Short Delay Flat SC-6333-96 20 Instantaneous and Override SC-6334-96 21 Ground Fault Protection SC-6335-96 22 Note: The following curves meet the requirements of UL, CSA, IEC, CCC and CE 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 NG/ND-Frames 320-1600A, 240-690V
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Time Current Curves TD012029EN Effective February 2016
ContentsSeries G NG-FrameDigitrip 310+ Electronic Trip Unit types NGS, NGH, NGC, NGU Page
Note:The following curves meet the requirements of UL, CSA, IEC, CCC and CE .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 .
NG/ND-Frames 320-1600A, 240-690V
Proof 4 — March 20, 2016 11:29 PM
2
Time Current Curves AD012020ENEffective October 2013
Series G L-Frame
eaton www.eaton.com
otee:N Unless noted below, all curves remain unchanged from their prior revision .
Revision Curve Number Page Date
2
Time Current Curves TD012029ENEffective February 2016
NG/ND-Frames
EATON www.eaton.com
Changed KAIC from 50 to 65 on page 3
ZSI times added to short delay curves.
Combined NG and ND frames into one document.
4 & 5 2/2016
Proof 4 — March 20, 2016 11:29 PM
3
Time Current Curves TD012029ENEffective February 2016
NG/ND-Frames
EATON www.eaton.com
STATUS
TEST / ALARM
6646
C05
E
GF
HA
B
DC
IR∑.8 1.0
.2.3
.6.4
Ig (xIn)GND
120
300Inst.
tg (ms)GND
6
87
23
54
9
Isd (xIR)SHORT
9
tR (s)LONG
LSG
STATUS
TEST / ALARM
6646
C05
H11
E
GF
HA
B
DC
IR∑6
87
23
54
9
Isd (xIR)SHORT
9
tR (s)LONG
LS
STATUS
TEST / ALARM tg (ms)
tsd(ms)
120
K N Q
300
L O R
* Inst.
J M P
Inst.120300
Settings
6646
C05
E
GF
HA
B
DC
IR∑.8 1.0
.2.3
.6.4
Ig (xIn)GND
N
PO
QJ
K
ML
R
sd */ t tg (ms)SHORT / GND
6
87
23
54
9
Isd (xIR)SHORT
9
tR (s)LONG
LSIG
STATUS
TEST / ALARM
6646
C05
E
GF
HA
B
DC
IR∑120
300Inst.
tsd (ms)SHORT
6
87
23
54
9
Isd (xIR)SHORT
9
tR (s)LONG
LSI
STATUS
TEST / ALARM tg (ms)
tsd(ms)
120
K N Q
300
L O R
* 50
J M P
50120300
Settings
6646
C05
E
GF
HA
B
DC
IR∑.8 1.0
.2.3
.6.4
Ig (xIn)GND
N
PO
QJ
K
ML
R
sd */ t tg (ms)SHORT / GND
6
87
23
54
9
Isd (xIR)SHORT
9
tR (s)LONG
ALSIG (With Maintenance Mode)
8
2.5
76
Ii (xIn)INST
4
Maintenance Mode
Push to TripRemote MM
6646
C06
STATUS
TEST / ALARM
6646
C05
E
GF
HA
B
DC
IR∑120
30050
tsd (ms)SHORT
6
87
23
54
9
Isd (xIR)SHORT
9
tR (s)LONG
ALSI (With Maintenance Mode)
8
2.5
76
Ii (xIn)INST
4
Maintenance Mode
Push to TripRemote MM
6646
C06
NG H 3 080 39 ZG E C
Frame
NG
Amperes
080 = 800120125160
= 120= 1250= 1600
Rating
Blank = 80% ratedC = 100% rated
Feature
Terminations
M = Metric tapped line/load conductors
E = Imperial tapped line/load conductors
Trip Unit
33323535B223636B2238
39
39B22
= 310+ Electronic LS= 310+ Electronic LSI= 310+ Electronic LSG= 310+ Electronic LS(A), GFA, no trip= 310+ Electronic LSIG= 310+ Electronic LSI(A), GFA, no trip= 310+ Electronic ALSI with Maintenance Mode= 310+ Electronic ALSIG with Maintenance Mode= 310+ Electronic ALSI(A) with Maintenance Mode and GFA, no trip
Notes1 800A only.2 Neutral inn left pole on GN; right pole on NG.3 Breakers do not ship with lugs.4 IEC OnlyTrip units are factory installable only.
2
2
2
3
4
4
1
Table 1. Series G N–Frame (320-1600A)
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 .
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 +85°C cause an over-temperature protection trip.
2. Application frequency is 50/60 Hz.
3. There is a memory effect that can act to shorten the Long Delay. If the breaker trips on a Long Delay overload and is quickly reset, the memory capacitor will still have charge and a subsequent overload will cause the breaker to trip in a shorter time than normal. The amount of time delay 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 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 Pickup has nine settings/positions, 2–8; the last two switch positions are the same: 9X.
8. For high fault current levels, an additional fixed instantaneous hardware override is provided to trip the breaker at 14400A. Instantaneous tolerance is +/- 20%. For the 1600A frame only, if Ir is set to the maximum (position H) and SDPU is set to the maximum (position 9), then the SDPU setting and the Instantaneous Override are set to the same value. The Instantaneous Override has precedence over SDPU. Therefore, the breaker will trip on Instantaneous Override.
Long Delay Response and Short Delay with I2T Response Curve and Override
Catalog Types: NGS, NGH, NGC, NGU, GNS, GNH, GNC, and GNU circuit breakers, three- and four-pole
Trip Unit Type: 33 (LS), 35 (LSG)
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 +85°C cause an over-temperature protection trip.
2. Application frequency is 50/60 Hz.
3. There is a memory effect that can act to shorten the Long Delay. If the breaker trips on a Long Delay overload and is quickly reset, the memory capacitor will still have charge and a subsequent overload will cause the breaker to trip in a shorter time than normal. The amount of time delay 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 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 Pickup has nine settings/positions, 2–8; the last two switch positions are the same: 9X.
8. Short Delay I2 T band has a tolerance of +15%.
9. Breakpoint back to FLAT response occurs @ 8x Ir for upper line of the I2 T curve.
10. For high fault current levels, an additional fixed instantaneous hardware override is provided to trip the breaker at 14400A. Instantaneous tolerance is +/- 20%. For the 1600A frame only, if Ir is set to the maximum (position H) and SDPU is set to the maximum (position 9), then the SDPU setting and the Instantaneous Override are set to the same value. The Instantaneous Override has precedence over SDPU. Therefore, the breaker will trip on Instantaneous Override.
Figure 2. Digitrip 310+ Long Delay Response and Short Delay with Flat Response and Override Curve (LSI, LSIG, ALSI, ALSIG) - Curve Number TC01210010E, March 2012
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 +85°C cause an over-temperature protection trip .
2 . Application frequency is 50/60 Hz .
3 . There is a memory effect that can act to shorten the Long Delay . If the breaker trips on a Long Delay overload and is quickly reset, the memory capacitor will still have charge and a subsequent overload will cause the breaker to trip in a shorter time than normal . The amount of time delay 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 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 Pickup has nine settings/positions, 2–8; the last two switch positions are the same: 9X .
8 . For high fault current levels, an additional fixed instantaneous hardware override is provided to trip the breaker at 14400A . Instantaneous tolerance is +/- 20% . For the 1600A frame only, if Ir is set to the maximum (position H) and SDPU is set to the maximum (position 9), then the SDPU setting and the Instantaneous Override are set to the same value . The Instantaneous Override has precedence over SDPU . Therefore, the breaker will trip on Instantaneous Override .
9 . Maximum clearing time when using zone selective interlocking is 62ms .
Long Delay Response and Short Delay with I2T Response Curve and Override
Catalog Types: NGS, NGH, NGC, NGU, GNS, GNH, GNC, and GNU circuit breakers, three- and four-pole
Trip Unit Type: 33 (LS), 35 (LSG)
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 +85°C cause an over-temperature protection trip.
2. Application frequency is 50/60 Hz.
3. There is a memory effect that can act to shorten the Long Delay. If the breaker trips on a Long Delay overload and is quickly reset, the memory capacitor will still have charge and a subsequent overload will cause the breaker to trip in a shorter time than normal. The amount of time delay 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 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 Pickup has nine settings/positions, 2–8; the last two switch positions are the same: 9X.
8. Short Delay I2 T band has a tolerance of +15%.
9. Breakpoint back to FLAT response occurs @ 8x Ir for upper line of the I2 T curve.
10. For high fault current levels, an additional fixed instantaneous hardware override is provided to trip the breaker at 14400A. Instantaneous tolerance is +/- 20%. For the 1600A frame only, if Ir is set to the maximum (position H) and SDPU is set to the maximum (position 9), then the SDPU setting and the Instantaneous Override are set to the same value. The Instantaneous Override has precedence over SDPU. Therefore, the breaker will trip on Instantaneous Override.
Long Delay Response and Short Delay with I2T Response Curve and Override
Catalog Types: NGS, NGH, NGC, NGU, GNS, GNH, GNC, and GNU circuit breakers, three- and four-pole
Trip Unit Type: 33 (LS), 35 (LSG)
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 +85°C cause an over-temperature protection trip .
2 . Application frequency is 50/60 Hz .
3 . There is a memory effect that can act to shorten the Long Delay . If the breaker trips on a Long Delay overload and is quickly reset, the memory capacitor will still have charge and a subsequent overload will cause the breaker to trip in a shorter time than normal . The amount of time delay 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 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 Pickup has nine settings/positions, 2–8; the last two switch positions are the same: 9X .
8 . Short Delay I2 T band has a tolerance of +15% .
9 . Breakpoint back to FLAT response occurs @ 8x Ir for upper line of the I2 T curve .
10 . For high fault current levels, an additional fixed instantaneous hardware override is provided to trip the breaker at 14400A . Instantaneous tolerance is +/- 20% . For the 1600A frame only, if Ir is set to the maximum (position H) and SDPU is set to the maximum (position 9), then the SDPU setting and the Instantaneous Override are set to the same value . The Instantaneous Override has precedence over SDPU . Therefore, the breaker will trip on Instantaneous Override .
11 . Maximum clearing time when using zone selective interlocking is 62ms .
Catalog Types: NGS, NGH, NGC, NGU, GNS, GNH, GNC, and GNU circuit breakers,
three- and four-pole
Trip Unit Type: 35 (LSG), 36 (LSIG), 39 (ALSIG)
STATUS
TEST / ALARM
6646
C05
E
GF
HA
B
DC
IR∑.8 1.0
.2.3
.6.4
Ig (xIn)GND
120
300Inst.
tg (ms)GND
6
87
23
54
9
Isd (xIR)SHORT
9
tR (s)LONG
LSG
STATUS
TEST / ALARM tg (ms)
tsd(ms)
120
K N Q
300
L O R
* Inst.
J M P
Inst.120300
Settings
6646
C05
E
GF
HA
B
DC
IR∑.8 1.0
.2.3
.6.4
Ig (xIn)GND
N
PO
QJ
K
ML
R
sd */ t tg (ms)SHORT / GND
6
87
23
54
9
Isd (xIR)SHORT
9
tR (s)LONG
LSIG
STATUS
TEST / ALARM tg (ms)
tsd(ms)
120
K N Q
300
L O R
* 50
J M P
50120300
Settings
6646
C05
E
GF
HA
B
DC
IR∑.8 1.0
.2.3
.6.4
Ig (xIn)GND
N
PO
QJ
K
ML
R
sd */ t tg (ms)SHORT / GND
6
87
23
54
9
Isd (xIR)SHORT
9
tR (s)LONG
ALSIG (With Maintenance Mode)
8
2.5
76
Ii (xIn)INST
4
Maintenance Mode
Push to TripRemote MM
6646
C06
tg (ms)
tsd(ms)
120 K N Q
300 L O R
* Inst. J M P
Inst.120300
Settings
Ground Fault Delay Response 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 about +85°C cause an overtemperature protection trip .
2 . Application frequency is 50/60 Hz .
3 . Trip units are suitable for functional field testing with test kit style # 70C1056G52 .
4 . For LD response and SD with flat responses curve, see TC01210010E .
5 . For LD responses and SD with I2 T response curve, see TC01210011E .
6 . For testing information, please contact Eaton .
Note: Refer to table below for variations .
SD/ GF Delay Settings Table
Figure 4. Ground Fault Delay Reponse Curve (LSG, LSIG, ALSIG) Curve Number TC01210012E, March 2012
Proof 4 — March 20, 2016 11:29 PM
7
Time Current Curves TD012029ENEffective February 2016
NG/ND-Frames
EATON www.eaton.com
0.01
2
0.02
0.03
0.04
0.05
0.060.070.080.09
0.1
0.2
0.3
0.4
0.5
0.60.70.80.9
1
3
4
5
6789
10
0.01
2 3
0.02
0.03
0.04
0.05
0.060.070.080.090.1
0.2
0.3
0.4
0.5
0.60.70.80.9
Maintenance Mode Trip Instantaneous Mode Trip
2
3
4
5
678910
1
ApplicationDetermines
End of Curve
Current in Multiples of Ratings (I )n
ApplicationDetermines
End of Curve
Tim
e in
Sec
onds
Time in S
econds
0.5
0.6
0.7
0.8
0.9
1
4 5 6 7 8 9 10 20 30 40 50 1 10 100
2.5 4.0
7.0
10.0
12.0
6.08.0
800A 18x1200A/1250A 12x1600A 9x
Last Instantaneous
Value
Figure 5. Maintenance Mode/Instantaneous Setting (ALSI, ALSIG) Curve Number TC01210016E ,TC01210017E, and TC 01210018E, March 2012
Digitrip 310+ Circuit Breaker Time/Current Curves
Maintenance Mode/Instantaneous Setting
Series G N-Frame Trip Unit Nameplates
Trip Unit Type: 38 (ALSI), 39 (ALSIG)
STATUS
TEST / ALARM
6646
C05
E
GF
HA
B
DC
IR∑120
30050
tsd (ms)SHORT
6
87
23
54
9
Isd (xIR)SHORT
9
tR (s)LONG
ALSI (With Maintenance Mode)
8
2.5
76
Ii (xIn)INST
4
Maintenance Mode
Push to TripRemote MM
6646
C06
STATUS
TEST / ALARM tg (ms)
tsd(ms)
120
K N Q
300
L O R
* 50
J M P
50120300
Settings
6646
C05
E
GF
HA
B
DC
IR∑.8 1.0
.2.3
.6.4
Ig (xIn)GND
N
PO
QJ
K
ML
R
sd */ t tg (ms)SHORT / GND
6
87
23
54
9
Isd (xIR)SHORT
9
tR (s)LONG
ALSIG (With Maintenance Mode)
8
2.5
76
Ii (xIn)INST
4
Maintenance Mode
Push to TripRemote MM
6646
C06
Notes:
1 . The maintenance mode feature must be ENABLED for these curves to apply . The LED indicator is blue 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 . Available pickup settings ( x In) (tolerance is ±15%) 2 .5, 4, 6, 7, 8, 10 .
5 . The Maintenance Mode consists of the two lowest settings of the INST switch: 2 .5x and 4 .0x . 6 . The Remote Maintenance Mode is enabled by applying 24 VDC to the two wire cable that exists the left side of the breaker . The wires are color coded as follows: Yellow = +24 V and Black = common ground . A blue colored LED, on the left side of the breaker is the Maintenance Mode section of the trip unit, will light . The lighted blue LED indicates that the lowest setting of the Maintenance Mode is enabled . This setting corresponds to 2 .5x of In . Turning the adjustable switch on the trip unit has no affect on either the Maintenance Mode or the INST Mode settings while the blue LED is lit . In addition to the blue colored LED, a relay contact (C, NO) is available . The wires for this contact exit the left hand side of the breaker and are color coded as follows: Blue = C, and Red = NO .
7 . Contact Eaton for additional information .
Left Side of Breaker
YellowBlack
Blue
Red
24 Vdc
Relay Wiring
NOC
800A 18x1200A/1250A 12x1600A 9x
Last Instantaneous
Value
Proof 4 — March 20, 2016 11:29 PM
8
Time Current Curves TD012029ENEffective February 2016
NG/ND-Frames
EATON www.eaton.com
AB DE-ION� circuit breakers
10,000
0.5
0.6
0.7
0.8
0.9
1 3 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100
200
Current in Multiples of Ampere Rating In
Current in Multiples of Ampere Rating In
300
400
500
600
700
800
900
1,00
0
2,00
0
3,00
0
4,00
0
5,00
06,
000
7,00
08,
000
9,00
010
,000
42
0.5
0.6
0.7
0.8
0.9 1 3 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100
200
300
400
500
600
700
800
900
1,00
0
2,00
0
3,00
0
4,00
0
5,00
06,
000
7,00
08,
000
9,00
010
,00042
1 Ho
ur1
Min
ute
Tim
e in
Sec
onds
2 Ho
urs
1 Hour1 M
inuteTim
e in Seconds2 Hours
5,000
3,000
2,000
1,000
500
300
200
100
50
30
20
10
5
3
2
1
.5
.3
.2
.1
.05
.03
.02
.01
10,000
5,000
3,000
2,000
1,000
500
300
200
100
50
30
20
10
5
3
2
1
.5
.3
.2
.1
.05
.03
.02
.01
Maximum Total
Clearing Time
Minimum Total
Clearing Time
Available Long Delay
Time Settings Shown
@ 6 x In 2 to 24 Seconds +0/–30%
in 0.1 Second Increments
Available Short Delay
Pickup Settings 1.5 to 8 x In
±5% in 0.1 Increments
Available Flat Short Delay
Time Settings 0.1 to 0.5 Seconds
in 0.01 Second Increments
Application
Determines
End of Curve
24
7
4
2
.3
.1
Circuit breaker time/current curves (phase current)Series G� NHH circuit breakers equipped with Digitrip� OPTIM 550 trip units response: LONG DELAY I T, SHORT DELAY FLAT2
1. For field testing primary injection methods, follow NEMA� AB4 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 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 Interrupting ���rating table above.
5. The Long Delay and Short Delay Pickup tolerances are � 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 extinction of the arcing current.
.5
Interrupting Rating
UL/CSa rms Sym. ka, 50/60 Hz kaBreaker type 240V 480V 600V
NHH 100 65 35
IeC 60947-2 rms Sym. ka, 50/60 Hz kaBreaker type 240V, (Ue) 415V, (Ue) 690V, (Ue)
Icu Ics Icu Ics Icu IcsNHH 100 100 70 50 25 13
1.15
+/–5%.
AB DE-ION circuit breakers
10,000
0.5
0.6
0.7
0.8
0.9
1 3 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100
200
Current in Multiples of Ampere Rating In
Current in Multiples of Ampere Rating In
300
400
500
600
700
800
900
1,00
0
2,00
0
3,00
0
4,00
0
5,00
06,
000
7,00
08,
000
9,00
010
,000
42
0.5
0.6
0.7
0.8
0.9 1 3 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100
200
300
400
500
600
700
800
900
1,00
0
2,00
0
3,00
0
4,00
0
5,00
06,
000
7,00
08,
000
9,00
010
,00042
1 Ho
ur1
Min
ute
Tim
e in
Sec
onds
2 Ho
urs
1 Hour1 M
inuteTim
e in Seconds2 Hours
5,000
3,000
2,000
1,000
500
300
200
100
50
30
20
10
5
3
2
1
.5
.3
.2
.1
.05
.03
.02
.01
10,000
5,000
3,000
2,000
1,000
500
300
200
100
50
30
20
10
5
3
2
1
.5
.3
.2
.1
.05
.03
.02
.01
MaximumTotal
Clearing Time
Minimum Total
Clearing Time
Available Short Delay
Pickup Settings 1.5 to 8 x In
±5% in 0.1 Increments
Available Long Delay
Time Settings Shown
@ 6 x In 1 to 5 Seconds +0/–30%
in 0.1 Second Increments
Available Flat Short Delay
Time Settings 0.1 to 0.5 Seconds
in 0.01 Second Increments
Application
Determines
End of Curve
.1
.5
1
5
Circuit breaker time/current curves (phase current)Series G NHH circuit breakers equipped with Digitrip OPTIM 550 trip units response: LONG DELAY I T, SHORT DELAY FLAT4
1. For field testing primary injection methods, follow NEMA AB4 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 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.
Interrupting Rating
UL/CSa rms Sym. ka, 50/60 Hz kaBreaker type 240V 480V 600V
NHH 100 65 35
IeC 60947-2 rms Sym. ka, 50/60 Hz kaBreaker type 240V, (Ue) 415V, (Ue) 690V, (Ue)
Icu Ics Icu Ics Icu IcsNHH 100 100 70 50 25 13
1.15
4. The end of the curve is determined by the interrupting rating of the circuit breaker. See Interrupting ���rating table above.
5. The Long Delay and Short Delay Pickup tolerances are �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 extinction of the arcing current.
+/–5%.
Figure 6. Digitrip OPTIM 550 NHH Long Delay I2T, Short Delay Flat NHH—Curve Number TC01207016E, September 2009
UIMP = 8 kV Utilization Category A
Proof 4 — March 20, 2016 11:29 PM
9
Time Current Curves TD012029ENEffective February 2016
NG/ND-Frames
EATON www.eaton.com
AB DE-ION circuit breakers
10,000
0.5
0.6
0.7
0.8
0.9
1 3 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100
200
Current in Multiples of Ampere Rating In
Current in Multiples of Ampere Rating In
300
400
500
600
700
800
900
1,00
0
2,00
0
3,00
0
4,00
0
5,00
06,
000
7,00
08,
000
9,00
010
,000
42
0.5
0.6
0.7
0.8
0.9 1 3 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100
200
300
400
500
600
700
800
900
1,00
0
2,00
0
3,00
0
4,00
0
5,00
06,
000
7,00
08,
000
9,00
010
,00042
1 Ho
ur1
Min
ute
Tim
e in
Sec
onds
2 Ho
urs
1 Hour1 M
inuteTim
e in Seconds2 Hours
5,000
3,000
2,000
1,000
500
300
200
100
50
30
20
10
5
3
2
1
.5
.3
.2
.1
.05
.03
.02
.01
10,000
5,000
3,000
2,000
1,000
500
300
200
100
50
30
20
10
5
3
2
1
.5
.3
.2
.1
.05
.03
.02
.01
MaximumTotal
Clearing Time
Minimum Total
Clearing Time
Available Short Delay
Pickup Settings 1.5 to 8 x In
±5% in 0.1 Increments
Available Long Delay
Time Settings Shown
@ 6 x In 1 to 5 Seconds +0/–30%
in 0.1 Second Increments
Available Flat Short Delay
Time Settings 0.1 to 0.5 Seconds
in 0.01 Second Increments
Application
Determines
End of Curve
.1
.5
1
5
Circuit breaker time/current curves (phase current)Series G NHH circuit breakers equipped with Digitrip OPTIM 550 trip units response: LONG DELAY I T, SHORT DELAY FLAT4
1. For field testing primary injection methods, follow NEMA AB4 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 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.
Interrupting Rating
UL/CSa rms Sym. ka, 50/60 Hz kaBreaker type 240V 480V 600V
NHH 100 65 35
IeC 60947-2 rms Sym. ka, 50/60 Hz kaBreaker type 240V, (Ue) 415V, (Ue) 690V, (Ue)
Icu Ics Icu Ics Icu IcsNHH 100 100 70 50 25 13
1.15
4. The end of the curve is determined by the interrupting rating of the circuit breaker. See Interrupting ���rating table above.
5. The Long Delay and Short Delay Pickup tolerances are �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 extinction of the arcing current.
+/–5%.
Figure 7. Digitrip OPTIM 550 NHH Long Delay I4T, Short Delay Flat NHH—Curve Number TC01207017E, September 2009
UIMP = 8 kV Utilization Category A
Proof 4 — March 20, 2016 11:29 PM
10
Time Current Curves TD012029ENEffective February 2016
NG/ND-Frames
EATON www.eaton.com
AB DE-ION circuit breakers
10,000
Current in Amperes
Current in Amperes Amperes
1,00
0
1,50
0
2,50
03,
000
3,50
04,
000
4,50
05,
000
10,0
00
15,0
00
20,0
00
25,0
00
30,0
0035
,000
40,0
0045
,000
50,0
00
1,00
0
2,00
0
3,00
0
4,00
0
5,00
06,
000
7,00
08,
000
9,00
010
,000
20,0
00
30,0
00
40,0
00
50,0
0060
,000
70,0
0080
,000
2,00
0
500
1,00
0
1,50
0
2,50
03,
000
3,50
04,
000
4,50
05,
000
10,0
000
15,0
000
20,0
000
25,0
000
30,0
000
35,0
000
40,0
000
45,0
000
50,0
000
2,00
0
500
1 Ho
ur1
Min
ute
Tim
e in
Sec
onds
2 Ho
urs
5,000
3,000
2,000
1,000
500
300
200
100
50
30
20
10
5
3
2
1
.5
.3
.2
.1
.05
.03
.02
.01
10,000
1 Hour1 M
inuteTim
e in Seconds2 Hours
5,000
3,000
2,000
1,000
500
300
200
100
50
30
20
10
5
3
2
1
.5
.3
.2
.1
.05
.03
.02
.01
Available Instantaneous
Pickup Settings
1000 to 4000 in 50 Amp
Increments
Available Flat Response
Short Delay Time Settings
0.1 to 0.5 Seconds
in 0.01 Second Increments
Application
Determines
End of Curve
Fixed
Instantaneous
Overrides
.5
Amperes
1,00
0
2,00
0
3,00
0
4,00
0
5,00
06,
000
7,00
08,
000
9,00
01,
0000
20,0
00
30,0
00
40,0
00
50,0
0060
,000
70,0
0080
,000
Circuit breaker time/current curves (phase current)Series G NHH circuit breakers equipped with Digitrip OPTIM 550 trip units response: INSTANTANEOUS AND OVERRIDE
220/240V (Ue) 380/415V (Ue) 660/690V (Ue)Breaker Type
Interrupting Rating
Proof 4 — March 20, 2016 11:29 PM
14
Time Current Curves TD012029ENEffective February 2016
NG/ND-Frames
EATON www.eaton.com
Proof 4 — March 20, 2016 11:29 PM
ND 3 120 T3 2 W
Circuit Breaker/Frame Type
NDHNDNDCNDUCNDCHNDCNDC
Number of Poles
234
= Two-pole= Three-pole= Four-pole
Trip Type
23567
= LSI= LS= LSG= LSIG= LSIA
Circuit Breaker/FrameAmpere Rating
800120
= 800 amperes= 1200 amperes
Trip Model
T3T5T7T10
= Model 310= Model 550= Model 750= Modle 1050
Suffix
EEHKWXY
= 100% R.P. protected (four-pole)= 50% R.P. protected (four-pole)= High magnetic molded case switch= Without terminals= Load only terminals= Line only terminals
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 .
Time Current Curves TD012029ENEffective February 2016
NG/ND-Frames
EATON www.eaton.com
Proof 4 — March 20, 2016 11:29 PM
6X
8X
4X
7X
2X
Long Delay �Minimum TotalClearing Time
Long Delay �Maximum TotalClearing Time
Standard FixedRating Plug
Short DelayPick UpSettings(Tolerance± 10%)
5X
3X
CURREN T IN MULTIPLES OF R ATING PLU G AMPERES (In)
Equipped With Type NES Digitrip RMS 310 Trip Units
The NES Digitrip RMS 310 Trip Units are AC only devices that employ microprocessor based technology that provides true RMS current sensing means for proper correlation with thermal characteristics of conductors and equipment . They are used with Circuit Breaker Types: ND, CND, HND, CHND, NDC, and CNDC .
Figure 12. I2T Ramp Short Time Delay (Phase Protection) - Curve Number SC-5375-92A, October 2006
Types ND, CND, HND, CHND, NDC, CNDC, NDU, NGU Equipped With Type NES Digitrip RMS 310 TripUnits With I2t Ramp Short Time Delay (Phase Protection)
Typical Trip Unit NameplateI2t Ramp Short Time Delay
Digitrip RMS 310Trip Unit
40°C Ambient
Short DelayPickup
5
73
2 8
4 6 TEST
Remov eEngaged
Pushto
Trip
Digitrip RMS 310 Rating PlugCat.–
/n–
“Y”x In
4
4
4
4
Notes:
Curve accuracy applies from -20°C to +55°C ambient . For possible 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 publication AB-4 .
1 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 pick up 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 delay 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 .
2 For high fault current levels a fixed instantaneous override is provided at 14000A (Tolerance ±15%) .
3 The end of the curve is determined by the interrupting rating of the circuit breaker . See above tabulation .
4 Not UL/CSA Listed .
5 Long Delay Pickup is 115% of In, +/- 5% .
15
16
Time Current Curves TD012029ENEffective February 2016
NG/ND-Frames
EATON www.eaton.com
Proof 4 — March 20, 2016 11:29 PM
.1
.01
.001
.05
.03
.02
.005
.003
.002
6X
8X
4X
7X
3X
2X
Standard FixedRating Plug
200 MS
100MS
300 MS
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
SE
CO
ND
S
CURREN T IN MULTIPLES OF R ATING PLU G AMPERES (In)
.5
.5 201054321.8.6
1.8.6
100,
000
10,0
00
50,0
00
40,0
00
30,0
00
20,0
00
200,
000
CURRENT IN AMPS
CURRENT IN MULTIPLES OF R ATING PLU G AMPERES (In)
60,0
0070
,000
80,0
0090
,000
.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
Fixed InstantaneousOveride �
InterruptingRatingDeterminesEnd of Curve �
.7 .9
I
1.15
Figure 13. Adjustable Short Time Delay (Phase Protection) - Curve Number SC-5376-92A, October 2006
Types ND, CND, HND, CHND, NDC, CNDC, NDU, NGU Equipped With Type NES Digitrip RMS 310 TripUnits With Adjustable Short Time Delay (Phase Protection)
Equipped With Type NES Digitrip RMS 310 Trip Units
The NES Digitrip RMS 310 Trip Units are AC only devices that employ microprocessor based technology that provides true RMS current sensing means for proper correlation with thermal characteristics of conductors and equipment . They are used with Circuit Breaker Types: ND, CND, HND, CHND, NDC, and CNDC .
Typical Trip Unit NameplateAdjustable Short Time Delay
4
4
4
4
Notes:
Curve accuracy applies from -20°C to +55°C ambient . For possible 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 publication AB-4 .
1 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 pick up 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 delay 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 .
2 For high fault current levels a fixed instantaneous override is provided at 14000A (Tolerance ±15%) .
3 The end of the curve is determined by the interrupting rating of the circuit breaker . See above tabulation .
4 Not UL/CSA Listed .
5 Long Delay Pickup is 115% of In, +/- 5% .
17
Time Current Curves TD012029ENEffective February 2016
EATON www.eaton.com
Proof 4 — March 20, 2016 11:29 PM
5000
4000
3000
2000
Digitrip RMS 310Trip Unit
40°C Ambient
TEST
Remov eEngaged
Pushto
Trip
Cat.–/n–
Ground FaultPickup Time
4
62
1
3 5500
150
1
300
IG=200A Millisec
“Y”
Digitrip RMS 310 Rating PlugShort DelayPickup
5
73
2 8
4 6
x In x IG
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
100
.50
1000
800
600
900
700
500
400
300
200
5000
4000
3000
2000
1000
800
600
900
700
500
400
300
200
CURRENT IN AMPERES
.60
.70
.80
.90
100
.50
.60
.70
.80
.90
CURRENT IN AMPERES
400
A.
200
A.
800
A.
600
A.
1000
A.
Typical Trip Unit Nameplate
Ground Fault Pick Up Settings(Tolerance ±10% Except±20% on 200 A. Setting)
.15 SEC
.3 SEC
.5 SEC
I
1200
A.
Figure 14. Ground Fault Protection - Curve Number SC-5377-92A, October 2009
Types ND, CND, HND, CHND, NDC, CNDC, NDU, Equipped With Type NES Digitrip RMS 310 TripUnits With Ground Fault Protection
Equipped With Type NES Digitrip RMS 310 Trip Units
The NES Digitrip RMS 310 Trip Units are AC only devices that employ microprocessor based technology that provides true RMS current sensing means for proper correlation with thermal characteristics of conductors and equipment . They are used with Circuit Breaker Types ND, CND, HND, CHND, NDC, and CNDC .
Notes:
Curve accuracy applies from –20°C to +55°C ambient .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 publication AB-4 .
NG/ND-Frames
18
Time Current Curves TD012029ENEffective February 2016
NG/ND-Frames
EATON www.eaton.com
Proof 4 — March 20, 2016 11:29 PM
.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
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
300100.8
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 8 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 )r0.4 to 1 x I = In rin 0.01 increments
r
r
24
7
4
2
100
1.15
Figure 15. Long Delay I2T, Short Delay I2T - Curver Number SC-6331-96, October 2006
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 .
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 .
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 .
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 .
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 The ground fault 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 .
800 160-8001200 240-1200
Maximum Ampere Rating
Available Rating PlugsGround FaultPickup Range0.2 to 1.0 x IsAmperes