Appendix – Siemens vacuum circuit breaker 38-3AH3 38 kV User Manual
Page 62
Control voltages,
ANSI/IEEE C37.06
Close
coil
Trip
coil
Spring charging motor
Nominal
Range
Run
(Average)
1
Inrush
(Peak)
Charging
Close
Trip
A
1
A
1
A
A
Seconds
48 Vdc
36 - 56
28 - 56
11.4
11.4/30
3
8
25
10
125 Vdc
100 - 140
70 - 140
2.1
4.8/7.4
3
4
18
10
250 Vdc
200 - 280
140 - 280
2.1
4.2/9.6
3
2
10
10
120 Vac
104 - 127
----
4
2.0
----
2, 4
6
----
4
10
240 Vac
208 - 254
----
4
2.0
----
2, 4
3
----
4
10
Appendix
Table 8: Circuit breaker control data
Footnotes:
1.
Current at nominal voltage
2.
Capacitor trip
3.
Value preceding slash (/) is the current for
the standard trip coil with standard rating
interrupting time. Value following (/) is
current for optional trip coil with three-cycle
interrupting time.
4.
---- means this selection is not available.
Footnotes:
1.
Two contacts in series
2.
All switch contacts are non-convertible.
Type switch
Continuous
current
Control circuit voltage
Non-inductive
A
120 Vac 240 Vac 48 Vdc 125 Vdc 250 Vdc
Circuit breaker
10
10
5
10/30
1
9.6
4.8
TOC
15
15
10
0.5
0.5
0.2
MOC
20
15
10
10
10
5
Inductive
Circuit breaker
10
6
3
10
6
3
TOC
15
15
10
0.5
0.5
0.2
MOC
20
15
10
10
10
5
Table 9: Interrupting capacity auxiliary switch contacts
2
62