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2019-05-24 / V1.0
Installation
Contactors C137/C163/C164/C165 – Installation and Maintenance Instructions
X
Put the connecting bars (10) or angled connecting
bars (9) on the contact bolts (1).
X
Put the washers (4) on the contact bolts (1).
-
Schaltbau recommends Schnorr-Washers (or
similar) to secure the nuts.
X
Screw the terminal nuts (5) on the contact bolts (1).
X
Hold the counter nuts (6) using an open-end
wrench.
X
Tighten the terminal nuts (5) with the determined
torque according to the table:
Series
Terminal nuts
Torque
C137
M6
max. 3 Nm
C163
M8
max. 6 Nm
C164
M8
max. 6 Nm
C165
M10
max. 10 Nm
1
10
4
5
9
1
5
4
6
7
Fig. 30: Connect the normally closed contacts (changeover
(SPDT) contactors only): Example for the connection
with busbars (7), connecting bars (10) or angled con-
necting bars (9)
(the figure shows C137, the procedure for C163, C164
and C165 is the same)
Tie bars for contactors in series
connection
To realise series connections with contactors, Schaltbau
offers suitable connecting tie bars. For dimensions and
ordering codes of the tie bars refer to our catalogue
B60
.
The catalogue is available under:
https://www.schaltbau.com/en/media-library/
An example of a series connection with tie bars is shown
in
Fig. 31.
X
Make sure, that all contact bolts are equipped with
washers and counter nuts.
X
Put the long tie bars (11) on the contact bolts of
the normally closed contacts.
X
Put the short tie bars (12) on the contact bolts of
the main contacts.
X
Screw the terminal nuts on the contact bolts.
X
Hold the counter nuts using an open-end wrench.
X
Tighten the terminal nuts with the determined
torque according to the table:
Series
Terminal nuts
Torque
C137
M6
max. 3 Nm
C163
M8
max. 6 Nm
C164
M8
max. 6 Nm
C165
M10
max. 10 Nm
12
11
Fig. 31: Example of a series connection
- tie bars long ( 11) for normally closed contacts
- tie bars short (12) for main contacts