53
2021-02-10 / V1.0
Contactors C195 Series – Installation and Maintenance Instructions
Maintenance
Assembly
X
Place new auxiliary switches (2) (with printed label
facing upwards) so that the locking pin (3) engag-
es in the second hole of the auxiliary switch.
X
Lightly screw on both auxiliary switches (2) with
new self-tapping screws (1).
X
If necessary, align the auxiliary switches (2) slightly.
-
The auxiliary switches must switch reliably!
X
Tighten the new self-tapping screws (1) with a
torque of 0.65-0.8 Nm.
X
Connect the control wires to the new auxiliary
switches (2), see section
“7.2 Electrical connec-
tion”/
“7.2.5 Connecting the auxiliary switches” on
page 23
.
X
Check the correct connection of the control wires-
to the auxiliary switches.
X
Use a continuity tester to check the correct assign-
ment and correct function of the auxiliary switch-
es.
X
Finally, subject the contactor to a complete check
as described in section
“7.4 Checks” on page 31
.
Auxiliary switches for latching contactor
types
The latching versions (type C195 A/ ...BD
and C195 S/ ...BD) have a hard-wired
auxiliary switch (4) which is required for
switching over the circuit board for the
latching drive. This auxiliary switch (4) is
not intended for replacement by the cus-
tomer!
One further S870 auxiliary switch (2) is available for cus-
tomer use. This auxiliary switch (2) can be replaced if
necessary.
X
The procedure for replacing the single auxiliary
switch (2) is the same as described in section
“8.4.2
Replacing the auxiliary switches – type C195 A/, B/,
S/, T/” on page 52
, but only the customer usable
auxiliary switch (2) is replaced instead of 2 auxil-
iary switches.
2
4
0.65-0.8 Nm
Fig. 71: C195 A/ ...BD, latching version: replace the single
auxiliary switch S870 (2)
2
4
0.65-0.8 Nm
Fig. 72: C195 S/ ...BD, latching version: replace the single
auxiliary switch S870 (2)
