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2021-02-10 / V1.0
Contactors C195 Series – Installation and Maintenance Instructions
Installation
Main contact connection with busbars
As an alternative to connection using wires, the main
power circuit can also be connected with busbars.
Examples for the connection with busbars are shown in
Fig. 33
to
Fig. 37
.
ATTENTION
Make sure that according to the insulation class
there is sufficient clearance between the main con-
nections and the pole plates.
X
Route the busbars (7) to the main contacts (1).
X
Depending on the installation situation, use addi-
tional connecting bars (6) or compensating angled
connecting bars (8) if necessary.
X
Connect the busbars (7) to the connecting bars
(6) or angled connecting bars (8) using approriate
screws, nuts and washers.
-
Schaltbau recommends using Schnorr washers
(or similar).
X
Connect the connecting bars (6) or angled con-
necting bars (8) to the main terminals (1) using the
terminal screws (4) and washers (5).
-
Schaltbau recommends using Schnorr washers
(or similar).
X
Depending on the contactor type, tighten the ter-
minal screws (4) with the prescribed torque accor-
ding to the table below.
Type
Terminal
screws
Torque
C195 X/
M8
8-10 Nm
C195 A/
9.5-12 Nm
C195 B/
9.5-12 Nm
C195 S/
9.5-12 Nm
C195 T/
9.5-12 Nm
C195 W/
9.5-12 Nm (NO contacts)
4.8-6 Nm (NC contacts)
4
5
6
1
7
8-10 Nm
1
4
8-10 Nm
5
6
7
Fig. 33: C195 X/: Connecting the main contacts: Example of a
connection with busbars (7) and connecting bars (6)
1
7
9.5-12
Nm
1
4
5
7
8
8
Fig. 34: C195 A/, C195 B/: Connecting the main contacts:
Example of a connection with busbars (7) and angled
connecting bars (8)
