Schaltbau CP1115/12 - Connecting the Earth Terminal

25
2021-04-12 / V1.1
Contactors CP Series – Installation and Maintenance Instructions
Installation
Main contact connection with cables
The connecting cables of the main power circuit must
be tted with appropriate ring terminals (for M12 ter-
minal screws).
NOTICE
X If connecting cables are used for the main pow-
er circuit, they must be selected taking into con-
sideration the insulation class and the ambient
conditions.
X Route the cables (2) to both main contacts (1).
X For devices with insert nuts screw the ring termi-
nals (2) in place using the terminal screws (3) and
suitable screw locking elements.
- Schaltbau recommends using Schnorr washers
(or similar).
X For devices with through boreholes use addition-
al nuts and washers (6) to counter the terminal
screws.
X Tighten the terminal screws (3) to a torque of
24-30Nm.
3
2
1
3
2
1
24 - 30
Nm
24 - 30
Nm
Fig. 23: Example for the connection of the main circuit with
one cable (2) on each side
3
2
1
3
2
1
6
24 - 30
Nm
24 - 30
Nm
6
Fig. 24: Example for the connection of the main circuit with
two cables (2) on each side
8.4.7 Connecting the earth terminal
The earth connecting cable must be tted with an ap-
propriate ring terminal (for M8 terminal screw).
X Route the earth connecting cable (1) to the earth
terminal (3).
X Screw the ring terminal (1) in place using the earth
terminal screw (2) and suitable screw locking ele-
ments.
- Schaltbau recommends using Schnorr washers
(or similar).
X Tighten the earth terminal screw (2) to a torque of
8-10Nm.
8 - 10
Nm
3
1
2
Fig. 25: Connecting the earth terminal