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2021-02-10 / V1.0
Maintenance
Contactors C195 Series – Installation and Maintenance Instructions
8.4.2 Replacing the auxiliary switches –
type C195 A/, B/, S/, T/
Under normal working condition (there have been no
short circuits in the control circuit) the life time of the
auxiliary switches exceeds those of the contactor.
However, in the event of a short circuit in the control
circuit, it is possible that the auxiliary switches may be
damaged and need to be replaced.
Spare parts required
-
Auxiliary switch assembly (2 auxiliary switches with
self-tapping screws),
-
or 1 auxiliary switch with self-tapping screws for lat-
ching versions, see chapter
“9. Spare parts”.
Tools required
-
Phillips screwdriver set
-
Continuity tester
-
Torque spanner
Disassembly
DANGER
Before beginning any work on the con-
tactors, make sure that
X
there is no voltage present,
X
all safety regulations are fully ob-
served.
X
Be sure to observe section
“8.1 Safety” on page 32
.
X
Remove the control wires from the auxiliary
switches.
X
Loosen the self-tapping screws (1) on the auxiliary
switches (2) and remove them.
X
Remove the auxiliary switches (2) from the contac-
tor top.
0.65-0.8 Nm
1
2
3
Fig. 69: C195 A/, C195 B/: Replacing the auxiliary switches
(the figure shows C195 A/, the procedure is identical
for C195 B/)
0.65-0.8 Nm
1
2
3
Fig. 70: C195 S/, C195 T/: Replacing the auxiliary switches
(the figure shows C195 S/, the procedure is identical
for C195 T/)
