VM1 - INSTRUCTION MANUAL BA 504/05 E
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9. Figures
Figure 9/9: Vacuum circuit breaker, type VM1, on withdrawable part, 12 kV, 630 A,
≤ 31.5 kA, pole side (use in ZS8.4 only)
33
Breaker pole
34
Contact arm with insulating tube
(versions for rated currents to 1250 A and above have
shrink sleeves)
34.1
Contact system
Figure 9/11: Circuit breaker front with controls and annunciations
1
Mechanism enclosure
1.1
Front plate
1.2
Bore for handling, both sides
2
"READY" lamp
3
ON push-button
4
OFF push-button
5
Mechanical operating cycle counter
6
Mechanical position indicator
7
Rating plate
8
Socket for emergency manual operation lever
Figure 9/10: Withdrawable part with built-in auxiliary switch
-BT2
Test position indicator
-BT1
Service position indicator
35.1
Spindle mechanism
35.2
Square spigot
35.5
Pawl
35.6
Scene head on spindle
37
Control wiring plug connector for withdrawable
assembly