Siemens 3AH Instructions, Installation, Operation, Maintenance - Page 32
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Appendix
Table A-2
Type 3AH Circuit Breaker Ratings
Control Voltages, ANSI C37.06
Nominal
Close
48 VDC
36-56
125 VDC
100-140
250 VDC
220-280
104-127
120 VAC
240 VAC
208-254
1. Current at nominal voltage.
Table A-3
Interrupting Capacity of Breaker Auxiliary Switch Contacts
Type of Circuit
to Interrupt
Non-Inductive
Inductive
1. 2 Contacts in series.
Table A-4
Circuit Breaker Weights
Breaker Type
Maximum Voltage
kV rms sym.
4.76
4.76
4.76
8.25
15.0
15.0
15.0
15.0
15.0
27.0
38.0
1. For shipping, add 100 lbs (45 kg).
Close Coil
Range
Trip
Amperes
28-56
2.1
70-140
1.0
140-280
0.5
104-127
0.9
208-254
0.4
2. Capacitor trip.
Continuous Current
Amperes
20
20
Interrupting Capability
kA rms sym. (MVA)
31.5 (250)
40 (350)
50
40 (500)
20 (500)
25
31.5 (750)
40 (1000)
50
25
31.5 (1500)
Trip Coil
(1)
(1)
Amperes
2.0
5.4
2.1
—
(2)
—
(2)
120 VAC
240 VAC
Interrupting Capacity in Amperes
10
5
10
5
Weights, approx. Lbs (approx. kg)
Continuous Current, Amperes
1200 A
242 (110)
264 (120)
246 (112)
268 (122)
330 (150)
363 (165)
246 (112)
268 (122)
165 (75)
257 (117)
165 (75)
257 (117)
242 (110)
264 (120)
246 (112)
268 (122)
330 (150)
363 (165)
264 (120)
286 (130)
363 (165)
385 (175)
Spring Charging Motor
Charging
Amperes
Run (Avg.)
(1)
Seconds
8
4
2
6
3
Control Circuit Voltage
48 VDC
125 VDC
5
20
(1)
(1)
5
20
(1)
3000 A
2000 A
286 (130)
396 (180)
286 (130)
286 (130)
396 (180)
10
10
10
10
10
250 VDC
3
3
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