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Siemens 3AK Operating Instructions Manual Page 16

Vacuum circuit-breaker module.
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Description
50.2
Gear unit
50.4
Motor M1
50.4.1
Position switch
50.5
Hand crank coupling
53.1
Closing solenoid Y9
54.1
Shunt release Y1
54.2
Shunt release Y2
54.3
Transformer-operated release Y4
54.4
Undervoltage release Y7
54.5
Transformer-operated release (0.1 Ws) Y6
55.
Spring state indicator
58.
Operating cycle counter
59.
Position indicator CLOSED-OPEN
16
Fig. 10
Opened mechanism box
60.
Mechanism box
61.
Dashpot
62.
Closing spring
63.
Circuit-breaker shaft
64.
Opening spring
66.
Closing damper
68.
Auxiliary switch S1
68.1
Operating rod (for auxiliary switch S1)
69.
Contactor relay K1
71.
Heater (condensation water protection)
9229 9923 176 0B
2013-09-09

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