17
2021-07-15 / V1.0
Contactors C320K/C320S – Installation and Maintenance Manual
Installation
Connecting the S870 auxiliary switches
The control wires for the auxiliary switches must be fit-
ted with flat receptacles (6.3 x 0.8 mm).
ATTENTION
X
The maximum permissible conductor cross-
section of the auxiliary contact control wires is
1.5 mm
2
/ AWG 16 stranded wire.
X
Bending of the connections on the auxiliary
switches is not permitted!
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 auxiliary
switches (2).
X
Plug the pre-assembled control wires with the re-
ceptacles (1) to the connections (2) of the auxiliary
switches.
X
Check that the control wires of the auxiliary
switches are correctly installed.
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.
6.3 x 0.8 mm
1
2
1
1
2
6.3 x 0.8 mm
Fig. 9:
C320K: Connecting the S870 auxiliary switches
6.3 x 0.8 mm
1
2
1
1
2
6.3 x 0.8 mm
Fig. 10: C320S: Connecting the S870 auxiliary switches
