MULTIPLES OF CURRENT SETTINGS, C
2
3
4
5
600
6 7 8 9 10
20
30
40
100
.5 .6 .7 .8 .9 1
1000
900
800
700
MULTIPLES OF INSTANTANEOUS PICKUP
50 60 70 80 90
Long-time
Delay Bands
(See Note 2)
500
Long400 time
Current
Settings
300
1000
900
800
700
1000
900
800
700
600
600
500
500
400
400
300
300
.7 .8 .9 1
0.1
2
3
4
5
6 7 8 9 10
SPECTRA G CURRENT LIMITING PERFORMANCE AT HIGH S/C VALUES
30
1000
900
800
700
0.023 seconds at 27,273 Amperes
600
20
500
0.025 seconds at 27,273 Amperes
400
300
0.019 seconds at 200,000 Amperes
200
200
200
0.01
10000
1000
Current in Amps
200
100000
Applies at < 480 Vac. >480 Vac Curve Extends to Application at 0.025 Seconds
Maximum Total
Clearing Time
4
100
90
80
70
3
TIME IN SECONDS
60
50
100
90
80
70
100
90
80
70
100
90
80
70
60
60
60
50
50
50
40
40
40
30
30
30
20
20
20
10
9
8
7
10
9
8
7
10
9
8
7
6
6
6
5
5
5
4
4
4
3
3
3
2
2
2
1
.9
.8
.7
.9
.8
.7
1
.9
.8
.7
.6
.6
.6
.5
.5
.5
.4
.4
Minimum Total
Clearing Time
40
2
30
20
1
1.5
2.5
Shorttime
Settings
2.0
6
5
3.5
12 t In
4
3.0
3
2
6.0 7.5 9.0
4.5
4.0
12 t Out
5.5
7.0
1
.9
.8
.7
8.5
6.5
8.0
Short-Time
Delay bands
.6
.5
4
.4
3
.3
.4
Instantaneous
.3
.3
.3
.2
.2
.2
.1
.09
.08
.07
.1
.09
.08
.07
.1
.09
.08
.07
.1
.09
.08
.07
.06
.06
.06
.05
.05
.05
.04
.04
.04
2
.2
Application
Determines
End of Curve
1
.03
.03
.03
.02
.02
.02
Applies for
Instantaneous
Pickup Settings
above 3.0 (X)
.06
Total
Clearing Time
(See Note 3)
.05
.04
Application
Determines
End of Curve
.03
.02
NOTE 2
APPLIES
.01
.01
2
3
4
5
6 7 8 9 10
20
30
40
50 60 70 8090
100
.5 .6 .7 .8 .9 1
.01
.7 .8 .9 1
MULTIPLES OF CURRENT SETTINGS, C
GE Consumer & Industrial Electrical Distribution
Molded Case Circuit Breakers
Available Ratings (Amperes)
Type
MCCB
Breaker
Current
Model Frame Sensor (S)
SG
600
SK
1200
150
400
600
800
1200
Rating Plug
(X)
60, 80, 100, 125, 150
150, 200, 225, 250, 300, 350, 400
300, 400, 450, 500, 600
300, 400, 500, 600, 700, 800
600, 700, 800, 1000, 1200
Voltage Rating: 600 Vac, 50 through 60Hertz
Notes:
1. Operation above 60 Hertz requires thermal
and interrupting derating of the circuit breaker.
2. Long-time delay band 4 not available on SG frame
3. For current limiting SG breakers in the current limiting range,
please refer to inset.
Types SG and SK
with MicroVersaTrip PlusTM
or MicroVersaTrip PMTM
Long-time Current Setting and Delay,
Short-time Pickup Setting and Delay,
and Instantaneous Pickup Setting
Time-Current Curves
Curves apply at 50 to 60 Hertz
and from -20°C to 55°C breaker ambient
.01
2
3
4
5
6 7 8 9 10
MULTIPLES OF INSTANTANEOUS PICKUP
GES-9867B
Programmer Adjustments
Long-time Function:
Current Settings (C): 0.50 to 1.0
in increments of 0.05
multiples of rating plug amps (X).
Delay Bands: 1, 2, 3 and 4. (See Note 2)
Short-time Function
Pickup Settings: 1.5 to 9.0 in increments of 0.5
multiples of current setting (C).
Delay Bands: 1, 2, 3 and 4. I2t In, I2tOut
Instantaneous Function
Pickup Settings: 1.5 to 10.0 in increments of 0.5
multiples of rating plug amps (X).
S: Current Sensor in Amps
X: Rating Plug in Amps
*C: Current Setting in Amps
* Appears as LTIME pickup on trip unit setup screen
05.10
20
30
TIME IN SECONDS
GES-9867B
5.0
GES-9867B
10
9
8
7