18
2021-07-15 / V1.0
Installation
Contactors C320K/C320S – Installation and Maintenance Manual
Connecting the coil
A cage clamp terminal block is provided for the coil
control wires. The control wires for the coil connection
must be stripped accordingly (if necessary, fit with ap-
propriate wire end sleeves):
-
conductor cross-section
0.5 ... 1.5 mm
2
with sleeve
0.5 ... 2.5 mm
2
without sleeve
-
stripping length: 8 ... 9 mm
ATTENTION
The value of the overvoltage limitation is part of the
magnetic system and must not be modified and in
particular not be short-circuited (e.g. by an external
diode).
X
Make sure that no such diode is used in your
control circuit.
ATTENTION
X
Mechanically secure the control wires to mi-
nimise feedback effects of forces caused by
the wires (e. g. shock, vibrations) acting on the
terminals.
X
Route the coil control wires (1) to the cage clamp
terminal block (2).
X
Connect the control wires (1). Make sure that the
polarity (+/-) is correct.
-
Wrong polarity will not damage the contactor.
-
Due to wrong polarity the contactor will not
work properly.
X
Check that the coil control wires are correctly in-
stalled.
X
Check the routing of the wiring. Wires must not be
squeezed or bent.
X
If applicable bundle and secure the wires using
cable ties. For this purpose, there are fixing lugs at
the bottom on both sides of the contactor.
1
2
Fig. 11: C320K: Connecting the coil
1
2
Fig. 12: C320S: Connecting the coil
