MULTIPLE OF RATING PLUG AMPERES
3000
3000
2000
2000
1000
900
800
700
600
1000
900
800
700
600
500
500
400
400
300
300
200
200
100
90
80
70
C9
60
C8
50
40
100
90
80
70
F7
60
50
40
C7
F6
30
30
C6
20
20
C5
10
9
8
7
6
F5
10
9
8
7
C4
6
F4
C3
5
TIME IN SECONDS
TIME IN SECONDS
F8
5
4
4
C2
3
3
F3
2
C1
F2
1
.9
.8
.7
.6
1
.9
.8
.7
.6
F1
.5
.5
.4
.4
.3
.3
.2
.2
.1
.09
.08
.07
.1
.09
.08
.07
.06
.06
.05
.05
.04
.04
.03
.03
Transition to Short Time,
or Instantaneous
Determines End of Curve
.02
.01
.5 .6 .7 .8 .9 1
Transition to Short Time,
or Instantaneous
Determines End of Curve
.01
2
3
4
5
6 7 8 9 10
20
30
40
.5 .6 .7 .8 .9 1
2
GE Energy
Industrial Solutions
Available Ratings (Amperes)
Current
Sensor Rating
Type Model Frame
(S)
Plug
60, 80, 100,
MCCB SG
600
150
125, 150
150,
200, 225,
400
250, 300, 350, 400
225, 250, 300, 350,
600
400, 450, 500, 600
Voltage Rating: 600Vac, 50 to 60 Hz
Notes:
1. Do not use on other than 50 and 60Hz systems
3
4
5
6 7 8 9 10
20
30
40
FUSE (I2t)
Thermal
1.11
.02
Molded Case Circuit Breaker
Type SG with
microEntelliGuard™ Trip Unit
Time Current Curves
Long Time Settings
Curves apply at 50 to 60 Hertz
and from -20°C to 55°C breaker
ambient temperature
DES-210C (1 of 2)
Programmer Adjustments
Long-time Function:
Current Settings (C): 0.50 to 1.00 in increments of
0.05 multiples of rating plug amps (X)
Delay Bands: MVT 1-3, C1-C9, F1-F7
DES-210C
DES-210C
2
MULTIPLE OF RATING PLUG AMPERES
3000
2000
1000
900
800
700
600
500
400
300
200
100
90
80
70
TIME IN SECONDS
60
50
MVT4
40
30
MVT3
20
MVT2
10
9
8
7
6
MVT1
5
4
3
DES-210C
2
1
.9
.8
.7
.6
.5
.4
.3
.2
.1
.09
.08
.07
.06
Transition to Short Time,
or Instantaneous
Determines End of Curve
.05
.04
.03
.02
.01
.5 .6 .7 .8 .9 1
2
3
4
5
6 7 8 9 10
20
30
40
MVT (I2t)
GE Energy
Industrial Solutions
Available Ratings (Amperes)
Current
Sensor Rating
Type Model Frame
(S)
Plug
60, 80, 100,
MCCB SG
600
150
125, 150
150,
200, 225,
400
250, 300, 350, 400
225, 250, 300, 350,
600
400, 450, 500, 600
Voltage Rating: 600Vac, 50 to 60 Hz
Notes:
1. Do not use on other than 50 and 60Hz systems
1.11
Molded Case Circuit Breaker
Type SG with
microEntelliGuard™ Trip Unit
Time Current Curves
Long Time Settings
Curves apply at 50 to 60 Hertz
and from -20°C to 55°C breaker
ambient temperature
DES-210C (2 of 2)
Programmer Adjustments
Long-time Function:
Current Settings (C): 0.50 to 1.00 in increments of
0.05 multiples of rating plug amps (X)
Delay Bands: MVT 1-3, C1-C9, F1-F7
MULTIPLES OF LONG TIME CURRENT SETTING PICKUP
.8 .9 1
2
3
4
5
6 7 8 9 10
20
30
40
50 60 70 80 90
.8 .9 1
2
3
4
5
6 7 8 9 10
20
30
40
50 60 70 80 90
5000
7
4000
6
3000
5
2000
4
1000
900
800
700
3
600
2
500
400
300
3
1
.9
.8
.7
200
2
TIME IN SECONDS
.5
1.5X
.4
9X
.3
100
90
80
70
60
.2
50
40
1
Transition to Instantaneous,
or Application
Determines End of Curve
.1
.09
.08
.07
TIME IN SECONDS
.6
30
20
.06
.05
.04
10
9
8
7
.03
6
.02
5
Short Time Slopes
4
4
3
3
2
1
.9
.8
.7
3
1.5
4
.5
Maximum
6
3.5
.4
7
4.5
.3
10
9
6.5
7.5
.3
.2
7
6
8.5
.1
.09
.08
.07
.4
8
Transition to Instantaneous,
or Application
Determines End of Curve
.1
.09
.08
.07
.06
5
4
.06
3
.05
1
.04
.05
2
.04
.03
.03
Minimum
.8 .9 1
2
3
4
5
6 7 8 9 10
20
30
40
50 60 70 80 90
.8 .9 1
2
Short Time Pickup
GE Energy
Industrial Solutions
Available Ratings (Amperes)
Current
Sensor Rating
Type Model Frame
(S)
Plug
60, 80, 100,
MCCB SG
600
150
125, 150
150, 200, 225,
400
250, 300, 350, 400
225, 250, 300, 350,
600
400, 450, 500, 600
Voltage Rating: 600Vac, 50 to 60 Hz
Notes:
1. Do not use on other than 50 and 60Hz systems
12.10
1
.5
12
11
9
8
5.5
.2
.02
.9
.8
.7
.6
5
2.5
.6
2
Transition to Instantaneous,
or Application
Determines End of Curve
3
4
5
6 7 8 9 10
20
30
Short Time Delay
Molded Case Circuit Breaker
Type SG with
microEntelliGuard™ Trip Unit
Time Current Curves
Short Time Settings
Curves apply at 50 to 60 Hertz
and from -20°C to 55°C breaker
ambient temperature
DES-211B
Programmer Adjustments
Short-time Function:
Pickup Settings: 1.5 to 9.0 in increments of 0.5
multiples of current setting (C)
Delay Bands: 1 to 12, slopes: 0 (I2t out), 1,2,3
40
50 60 70 80 90
.02
DES-211B
DES-211B
2
MULTIPLE OF CURRENT SENSOR AMPERES
1000
900
800
700
.3
.4
.5
.6 .7 .8 .9 1
2
3
4
5
6
7 8 9 10
20
30
600
500
400
300
100
90
80
70
1
2
3
4
5
6 7 8 9 10
20
30
40
100
200
50 60 70 8090
3.0
40
30
2.0
20
10X
1.0
.9
.8
.7
9X
10
9
8
7
.6
8X
6
.5
.4
7X
5
4
.3
6X
3
5X
.2
4X
2
3X
.1
.09
.08
.07
DES-212A
2X
1
.9
.8
.7
Standard Range
Adjustable 2-10X
Trip Plug Rating
.6
.5
.06
Override
Fixed at 10X
Reduced Energy Let-Through: RELT
Pickup=1.5-10X Trip Rating Plug
.05
.04
.03
.4
.3
.02
.2
.01
Application of Circuit Breaker
rating (lcu) Determines
End of Curve
.1
.09
.08
.07
SPECTRA G CURRENT LIMITING PERFORMANCE AT HIGH S/C VALUES
0.1
.06
.05
0.023 seconds at 27,273 Amperes
.04
0.025 seconds at 27,273 Amperes
.03
0.019 seconds at 200,000 Amperes
.02
0.01
10000
1000
100000
Current in Amps
.01
.3
Applies at < 480 Vac. >480 Vac Curve Extends to Application at 0.025 Seconds
.4
.5
.6 .7 .8 .9 1
2
3
4
5
6 7 8 9 10
GE Consumer & Industrial Electrical Distribution
Available Ratings (Amperes)
Current
Sensor Rating
Type Model Frame
(S)
Plug
60, 80, 100,
MCCB SG
600
150
125, 150
150, 200, 225,
400
250, 300, 350, 400
225, 250, 300, 350,
600
400, 450, 500, 600
Voltage Rating: 600Vac, 50 to 60 Hz
Notes:
1. Do not use on other than 50 and 60Hz systems
01.11
20
30
Molded Case Circuit Breaker
Type SG with
microEntelliGuard™ Trip Unit
Time Current Curves
Instantaneous, Override (HSIOC)
Reduced Energy Let-through
Instantaneous (RELT)
Curves apply at 50 to 60 Hertz
and from -20°C to 55°C breaker
ambient temperature
DES-212A
Programmer Adjustments
Instantaneous Function:
Pickup Settings: 2.0 to 10.0 in increments of 0.5
multiples of current sensor amps (X)
RELT Function:
Pickup Settings: 1.5 to 10.0 in increments of 0.5
multiples of current sensor amps (X)
DES-212A
TIME IN SECONDS
4.0
50
TIME IN SECONDS
5.0
60
MULTIPLE OF RATING PLUG AMPERES
3000
3000
2000
2000
1000
900
800
700
600
1000
900
800
700
600
500
500
400
400
300
300
200
200
100
90
80
70
C9
60
C8
50
40
100
90
80
70
F7
60
50
40
C7
F6
30
30
C6
20
20
C5
10
9
8
7
6
F5
10
9
8
7
C4
6
F4
C3
5
TIME IN SECONDS
TIME IN SECONDS
C10
5
4
4
C2
3
3
F3
2
C1
F2
1
.9
.8
.7
.6
1
.9
.8
.7
.6
F1
.5
.5
.4
.4
.3
.3
.2
.2
.1
.09
.08
.07
.1
.09
.08
.07
.06
.06
.05
.05
.04
.04
.03
.03
Transition to Short Time,
or Instantaneous
Determines End of Curve
.02
Transition to Short Time,
or Instantaneous
Determines End of Curve
.01
.01
.5 .6 .7 .8 .9 1
2
3
4
5
6 7 8 9 10
20
30
40
.5 .6 .7 .8 .9 1
2
3
GE Energy
Industrial Solutions
Molded Case Circuit Breaker
Available Ratings (Amperes)
Type
Model
MCCB
SK
Current
Sensor
Frame
(S)
1200
800
1200
Rating
Plug
300, 350, 400, 450,
500, 600, 700, 750,
800
450, 500, 600,
700, 750, 800, 900,
1000, 1100, 1200
4
5
6 7 8 9 10
20
30
40
FUSE (I2t)
Thermal
Type SK with
microEntelliGuard™ Trip Unit
Time Current Curves
Long Time Settings
Curves apply at 50 to 60 Hertz
and from -20°C to 55°C breaker
ambient temperature
Voltage Rating: 600Vac, 50 to 60 Hz systems
Notes:
1. Do not use on other than 50 and 60Hz systems
2. 450A and 1000A rating plugs available on 100% rated
1000A max. SK breakers
10.10
.02
DES-215B (1 of 2)
Programmer Adjustments
Long-time Function:
Current Settings (C): 0.50 to 1.00 in increments of
0.05 multiples of rating plug amps (X)
Delay Bands: MVT 1-4, C1-C10, F1-F7
DES-215B
DES-215B
2
MULTIPLE OF RATING PLUG AMPERES
3000
2000
1000
900
800
700
600
500
400
300
200
100
90
80
70
TIME IN SECONDS
60
50
MVT4
40
30
MVT3
20
MVT2
10
9
8
7
6
MVT1
5
4
3
DES-215B
2
1
.9
.8
.7
.6
.5
.4
.3
.2
.1
.09
.08
.07
.06
Transition to Short Time,
or Instantaneous
Determines End of Curve
.05
.04
.03
.02
.01
.5 .6 .7 .8 .9 1
2
3
4
5
6 7 8 9 10
20
30
40
MVT (I2t)
GE Energy
Industrial Solutions
Molded Case Circuit Breaker
Available Ratings (Amperes)
Type
Model
MCCB
SK
Current
Sensor
Frame
(S)
1200
800
1200
Rating
Plug
300, 350, 400, 450,
500, 600, 700, 750,
800
450, 500, 600,
700, 750, 800, 900,
1000, 1100, 1200
Type SK with
microEntelliGuard™ Trip Unit
Time Current Curves
Long Time Settings
Curves apply at 50 to 60 Hertz
and from -20°C to 55°C breaker
ambient temperature
Voltage Rating: 600Vac, 50 to 60 Hz systems
Notes:
1. Do not use on other than 50 and 60Hz systems
2. 450A and 1000A rating plugs available on 100% rated
1000A max. SK breakers
10.10
DES-215B (2 of 2)
Programmer Adjustments
Long-time Function:
Current Settings (C): 0.50 to 1.00 in increments of
0.05 multiples of rating plug amps (X)
Delay Bands: MVT 1-4, C1-C10, F1-F7
MULTIPLES OF LONG TIME CURRENT SETTING PICKUP
.8 .9 1
2
3
4
5
6 7 8 9 10
20
30
40
50 60 70 80 90
.8 .9 1
2
3
4
5
6 7 8 9 10
20
30
40
50 60 70 80 90
5000
7
4000
6
3000
5
2000
4
1000
900
800
700
3
600
2
500
400
300
3
1
.9
.8
.7
200
2
TIME IN SECONDS
.5
1.5X
.4
9X
.3
100
90
80
70
60
.2
50
40
1
Transition to Instantaneous,
or Application
Determines End of Curve
.1
.09
.08
.07
TIME IN SECONDS
.6
30
20
.06
.05
.04
10
9
8
7
.03
6
.02
5
Short Time Slopes
4
4
3
3
2
1
.9
.8
.7
3
1.5
4
.5
Maximum
6
3.5
.4
7
4.5
.3
10
9
6.5
7.5
.3
.2
7
6
8.5
.1
.09
.08
.07
.4
8
Transition to Instantaneous,
or Application
Determines End of Curve
.1
.09
.08
.07
.06
5
4
.06
3
.05
1
.04
.05
2
.04
.03
.03
Minimum
.8 .9 1
2
3
4
5
6 7 8 9 10
20
30
40
50 60 70 80 90
.8 .9 1
2
Short Time Pickup
GE Energy
Industrial Solutions
Available Ratings (Amperes)
Current
Sensor Rating
Type Model Frame
(S)
Plug
300, 350, 400, 450,
MCCB SK
1200
800
500, 600, 700, 750,
800
450, 500, 600,
1200
700, 750, 800, 900,
1000, 1100, 1200
11.10
3
4
5
6 7 8 9 10
20
30
Short Time Delay
Molded Case Circuit Breaker
Type SK with
microEntelliGuard™ Trip Unit
Time Current Curves
Short Time Settings
Curves apply at 50 to 60 Hertz
and from -20°C to 55°C breaker
ambient temperature
Voltage Rating: 600Vac, 50 to 60 Hz systems
Notes:
1. Do not use on other than 50 and 60Hz systems
2. 450A and 1000A rating plugs available on 100% rated
1000A max. SK breakers
1
.5
12
11
9
8
5.5
.2
.02
.9
.8
.7
.6
5
2.5
.6
2
Transition to Instantaneous,
or Application
Determines End of Curve
DES-216B
Programmer Adjustments
Short-time Function:
Pickup Settings: 1.5 to 9.0 in increments of 0.5
multiples of current setting (C)
Delay Bands: 1 to 12, slopes: 0 (I2t out), 1,2,3
40
50 60 70 80 90
.02
DES-216B
DES-216B
2
MULTIPLE OF CURRENT SENSOR AMPERES
1000
900
800
700
.3
.4
.5
.6 .7 .8 .9 1
2
3
4
5
6 7 8 9 10
20
30
600
500
400
300
200
100
90
80
70
10X
TIME IN SECONDS
60
50
9X
40
8X
30
7X
20
6X
5X
10
9
8
7
4X
2X
1
2
3
4
5
6 7 8 9 10
20
30
40
50 60 70 8090
TIME IN SECONDS
5
4
3
Standard Range
Adjustable 2-10X
Trip Plug Rating
1
.9
.8
.7
.9
.8
.7
.6
Override
Fixed at 10X
.6
.5
.5
.4
.4
.3
.3
Reduced Energy Let-Through: RELT
Pickup=1.5-10X Trip Rating Plug
.2
.1
.09
.08
.07
.2
.1
.09
.08
.07
.06
Application of Circuit Breaker
rating (lcu) Determines
End of Curve
.06
.05
.05
.04
.04
.03
.03
.02
.02
.01
.3
.4
.5
.6 .7 .8 .9 1
2
3
4
5
6 7 8 9 10
GE Energy
Industrial Solutions
Available Ratings (Amperes)
Current
Sensor Rating
Type Model Frame
(S)
Plug
300, 350, 400, 450,
MCCB SK
1200
800
500, 600, 700, 750,
800
450, 500, 600,
1200
700, 750, 800, 900,
1000, 1100, 1200
Voltage Rating: 600Vac, 50 to 60 Hz systems
Notes:
1. Do not use on other than 50 and 60Hz systems
2. 450A and 1000A rating plugs available on 100%
rated 1000A max. SK breakers
01.11
20
30
1
2
3
4
Molded Case Circuit Breaker
Type SK with
microEntelliGuard™ Trip Unit
Time Current Curves
Instantaneous & Reduced
Energy Let-through
Instantaneous (RELT) Settings
Curves apply at 50 to 60 Hertz
and from -20°C to 55°C breaker
ambient temperature
5
6 7 8 9 10
20
30
40
50 60 70 8090
DES-217A
Programmer Adjustments
Instantaneous Function:
Pickup Settings: 2.0 to 10.0 in increments of 0.5
multiples of current sensor amps (X)
RELT Function:
Pickup Settings: 1.5 to 10.0 in increments of 0.5
multiples of current sensor amps (X)
100
DES-217A
2
.01
1
DES-217A
6
100
3X
MULTIPLE OF LONG-TIME PICKUP
1000
900
800
700
600
Nominal Clearing and Commit Times for X Multipliers of Nominal Pickup.
500
X=
Curve
1.5
1.5
6
6
7.2
7.2
10
10
400
Commit
Clear
Commit
Clear
Commit
Clear
Commit
Clear
400
300
Min CB
4.25
8.04
0.20
0.33
0.14
0.24
0.072
0.137
300
C-2
12.7
24.1
0.60
0.94
0.42
0.66
0.21
0.35
C-3
25.5
48.1
1.21
1.84
0.83
1.28
0.43
0.67
C-4
34.0
64.1
1.61
2.45
1.11
1.70
0.57
0.89
C-5
51.0
96.2
2.41
3.66
1.67
2.53
0.86
1.32
C-6
67.9
128
3.21
4.87
2.22
3.37
1.15
1.75
C-7
84.9
160
4.02
6.08
2.78
4.20
1.43
2.18
C-8
101.9
192
4.82
7.29
3.33
5.03
1.72
2.61
200
100
90
80
70
200
C-9
118.9
224
5.62
8.49
3.89
5.87
2.01
3.03
60
C-10
135.9
256
6.43
9.70
4.44
6.70
2.29
3.46
100
90
80
70
60
50
C-11
152.9
289
7.23
10.9
5.00
7.54
2.58
3.89
50
40
C-12
169.8
321
8.04
12.1
5.56
8.37
2.87
4.32
40
C-13
203.8
385
9.64
14.5
6.67
10.0
3.44
5.18
C-14
237.8
449
11.2
17.0
7.78
11.7
4.01
6.04
C-15
271.7
513
12.9
19.4
8.89
13.4
4.59
6.90
C-16
305.7
577
14.5
21.8
10.0
15.0
5.16
7.76
C-17
339.7
641
16.1
24.2
11.1
16.7
5.73
8.61
C-18
373.6
705
17.7
26.6
12.2
18.4
6.30
9.47
Max CB
407.6
769
19.3
29.1
13.3
20.0
6.88
10.3
30
20
Maximum CB
10
9
8
7
30
20
10
9
8
7
Algorithm will not commit below 1.5 cycles, clearing time will not be less than 0.088 seconds.
Actual Long-Time Pickup is 112% of Nominal Pickup.
6
6
5
5
4
4
C-13
3
3
2
C-6
1
.9
.8
.7
C-3
.9
.8
.7
.6
Transition to Short-Time Pickup,
Short- Time Delay Band or Instantaneous
Determines End of Curve
.6
.5
.4
1
.5
.4
Minimum CB
.3
.3
.2
.2
.1
.09
.08
.07
.06
.1
.09
.08
.07
.06
.05
.05
.04
.04
.03
.03
.02
.02
.01
.01
800-5000A AKR & WavePro
800-4000A PowerBreak &
PowerBreak II
All Voltages: 600 Vac and below
EntelliGuard TU Trip Unit for PowerBreak,
PowerBreak II, AKR and WavePro
Circuit Breakers
UL489 and UL1066 Stored Energy
Mechanism Circuit Breakers
Long-Time CB Characteristics
Curves apply at 60 Hertz
and from -20°C to 55°C circuit breaker ambient temperature.
09.08
Pickup Range
0.5X-1.0X Trip Rating Plug
10000
9000
8000
7000
Frames
Frames
DES-095
6000
Low-Voltage Circuit Breakers
5000
MULTIPLE OF LONG-TIME PICKUP
4000
50 60 70 8090
3000
40
2000
30
1000
900
800
700
20
600
6 7 8 9 10
500
5
400
4
300
3
200
2
100
.5 .6 .7 .8 .9 1
DES-095
2
DES-095
TIME IN SECONDS
500
TIME IN SECONDS
10000
9000
8000
7000
6000
5000
600
50 60 70 80 90
4000
40
3000
30
2000
20
1000
900
800
700
6 7 8 9 10
600
5
500
4
400
3
300
2
200
.5 .6 .7 .8 .9 1
100
1000
900
800
700
MULTIPLE OF LONG-TIME PICKUP
2
3
4
5
6 7 8 9 10
20
30
40
50 60 70 80 90
1
2
3
4
5
6 7 8 9 10
20
30
40
100
1
100
50 60 70 80 90
600
Additional clearing time required for very low pickup
settings under self power
500
.2
.3
.4
.5 .6 .7 .8 .9 1
2
3
4
5
1000
900
800
700
600
6
500
7
400
400
16mS additional at minimum possible
ST pick up (Minimum Trip Rating Plug X
Minimum Long Time pickup X Minimum
Short Time pickup. (28% sensor)
300
200
300
200
Time band additional time may be
calculated via the following formula;
Additional t = 21.25 –18x%Sensor
1000
Up to 119% sensor
100
90
80
70
100
90
80
70
60
TIME IN SECONDS
60
.1
.09
.08
.07
50
40
50
40
.06
30
20
30
0mS additional at 119% sensor
.05
20
.04
TIME IN SECONDS
1000
900
800
700
.03
10
9
8
7
.02
10
9
8
7
6
6
4
.4
.5 .6 .7 .8 .9 1
2
3
4
5
6
5
7
4
3
3
2
2
Max.
1
.9
.8
.7
DES-097
.3
.9
.8
.7
.6
Int.
.6
.5
11
.4
Min.
1
.5
10
.4
.3
.3
9
.2
8
.2
7
6
.1
.09
.08
.07
5
.1
.09
.08
.07
.06
4
3
10X STPU Maximum
Slope Calculation
.06
.05
2
.04
.05
1
.04
.03
.03
.02
Transition to Instantaneous,
Override or Application
Determines End of Curve
.02
Transition to Instantaneous,
Override or Application
Determines End of Curve
.01
.01
3
4
5
6 7 8 9 10
20
30
40
50 60 70 8090
1
2
3
4
5
6 7 8 9 10
20
30
MULTIPLE OF LONG-TIME PICKUP
Low-Voltage Circuit Breakers
Frames
800-5000A
Frames
800-4000A
AKR & WavePro
PowerBreak &
PowerBreak II
All Voltages: 600 Vac and below
EntelliGuard TU Trip Unit
for PowerBreak, PowerBreak II,
AKR & Wavepro Circuit Breakers
UL489 and UL1066 Stored Energy
Mechanism Circuit Breakers
Short-Time Pickup and Delay Bands
Curves apply at 60 Hertz
and from -20°C to 55°C circuit breaker ambient temperature.
09.08
DES-097
Pickup Range
1.5X - 9X up to 4000A Frames
1.5X - 7X 5000A AKR and WavePro
40
50 60 70 8090
100
2
100
1
DES-097
.01
.2
5
MULTIPLE OF TRIP RATING PLUG
10000
9000
8000
7000
6000
5000
50 60 70 80 90
4000
40
3000
30
2000
20
1000
900
800
700
6 7 8 9 10
600
5
500
4
400
3
300
2
200
.5 .6 .7 .8 .9 1
100
1000
900
800
700
Additional clearing time required for very low
instantaneous pickup settings under self power
15X Trip Rating Plug
.1
600
.2
.3
.4
.5 .6 .7 .8 .9 1
2
3
4
5
6
7
1000
900
800
700
600
500
500
400
400
1.5X Trip Rating Plug
300
300
10X Trip Rating Plug
100
90
80
70
50
Adjustable in 0.5X steps
40
Time band additional time may be
calculated via the following formula;
Additional t = 21.25 –18x%Sensor
1000
Up to 119% sensor
.1
.09
.08
.07
60
TIME IN SECONDS
200
10mS additional at
minimum possible
RELT pick up
(Minimum Pickup
X trip rating plug.
(56% sensor)
30
100
90
80
70
60
50
.06
40
.05
30
.04
20
20
0mS additional at 119% sensor
.03
TIME IN SECONDS
200
.02
10
9
8
7
.01
.1
6
5
10
9
8
7
.2
.3
.4
.5 .6 .7 .8 .9 1
2
3
4
5
6
6
7
5
4
4
3
Maximum Adjustable Instantaneous Pickup,
Based on Nominal Frame Size PowerBreak UL 489 CB
2
Frame =
PowerBreak with Short Time ON
PowerBreak with Short Time OFF
800
15
10
1600
15
10
2000
15
10
2500
13
10
3000
13
10
2
4000
9
9
DES-099
1
.9
.8
.7
1
.6
.9
.8
.7
.6
.5
.5
.4
.4
.3
.3
.2
.2
.1
.09
.08
.07
.1
.09
.08
.07
.06
.06
Application
Determines
End of Curve
.05
.04
.05
.04
.03
.03
.02
.02
.01
.01
800-4000A
PowerBreak
All Voltages: 600 Vac and below
EntelliGuard TU Trip Unit
for PowerBreak Circuit Breaker
UL 489 Stored Energy
Mechanism Circuit Breakers
Instantaneous trip
Curves apply at 60 Hertz
and from -20°C to 55°C circuit breaker ambient temperature.
09.08
Minimum Pickup 1.5X
Maximum per frame
10000
9000
8000
7000
Frames
DES-099
6000
Low-Voltage Circuit Breakers
5000
MULTIPLE OF TRIP RATING PLUG
4000
50 60 70 8090
3000
40
2000
30
1000
900
800
700
20
600
6 7 8 9 10
500
5
400
4
300
3
200
2
100
.5 .6 .7 .8 .9 1
DES-099
3