20
2019-08-07 / V1.0
Installation
Contactors C193/C294 – Installation and Maintenance Instructions
Main contact connection with busbars
As an alternative to the connection with wires, the main
current circuit can also be connected with busbars.
Examples for the connection with busbars are shown in
Fig. 14
to
Fig. 16
.
X
Lay the busbars (7) to the main contacts (1).
X
Depending on the installation situation, use ad-
ditional connecting bars (6) or angled connecting
bars (8) if necessary.
X
Connect the busbars (7) to the connecting bars
(6) or angled connecting bars (8) using approriate
screws and washers.
-
Schaltbau recommends Schnorr-Washers (or
similar) to secure the screws.
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 Schnorr-Washers (or
similar) to secure the screws.
X
Tighten the terminal screws (4) with the required
torque of 3 Nm max.
4
5
max. 3.0 Nm
6
1
7
Fig. 14: C193 series: Connect the main contacts (Example
for the connection with busbars (7) and connecting
bars(6))
4
5
max. 3.0 Nm
8
1
7
Fig. 15: C193 series: Connect the main contacts (Example for
the connection with busbars (7) and angled connect-
ing bars (8))
max. 3.0 Nm
max. 3.0 Nm
1
7
6
7
6
5
4
5
4
1
Fig. 16: C294 series: Connect the main contacts (Example
for the connection with busbars (7) and connecting
bars(6))
