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Siemens 3AK Operating Instructions Manual Page 49

Vacuum circuit-breaker module.
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2013-09-09
Isoflex Topas L 32
a
Crankpin for sensing device actuation
c
Curve contour
d
Close-latch
e
Deflection of auxiliary switch
g
Opening spring guide
h
Deflection of auxiliary switch
k
OPEN-latch
l
Curve for OPEN-latch
m
End stop
s
Contact area of instantaneous release
Fig. 54
Bearings and sliding surfaces of the operating mechanism
Shell Tellus Oil 32
b
Bearing for deflection lever
f
Auxiliary switch
j
Circuit-breaker shaft bearing
p
Opening spring bearing
r
Spring eyelet on closing spring
Maintenance
49

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