ABB VD4 Series Instruction Manual - page 39
Instruction manual 534/01 | VD4 Vacuum-circuit-breaker 39
Figure 8/1: Auxiliary switch block, equipment example
40 Magnet holder, complete
41 Mounting plate
41.1 Upper (plug-in) fixing point
41.2 Lower fixing point
42 Auxiliary shaft
42.1 Crank
43 Fastening screw
Figure 8/2: Undervoltage release and operation area, equipment example
-RL1 Blocking magnet
-MC Shunt release ON
-MU Undervoltage release
Figure 8/3: Indirect overcurrent release and operation area,
equipment example
11.1 ON push-rod
12.1 OFF push-rod
14
Operating cycle counter
-MO3 Indirect overcurrent release
Figure 8/4: Charging motor, charging system and spring energy store
33 Drum with spiral spring
34 Chain drive
35 Ratchet wheel
37 Charging motor with gearing
37.1 Fastening screw (gearbox)
35
33
34
37
43
42.1 41.2 42
40
43
41
-MU
-RL1
-MC
12.1
11.1
-MO3
14
41.1