21
2021-02-10 / V1.0
Contactors C195 Series – Installation and Maintenance Instructions
Installation
7.2 Electrical connection
7.2.1 Electrical data and other technical
specifications
For the power consumption of the magnetic drive sys-
tem and electrical data of the auxiliary switches as well
as other technical specifications, refer to the respective
data sheets and to our
B195
catalogue
. The
catalogue
is available under:
https://www.schaltbau.com/en/media-library/
7.2.2 Preparatory measures
X
The minimum conductor cross-sections for the
main terminal connection and the earth/ground
connection must be observed. Schaltbau recom-
mends busbars for connecting the main contacts.
X
If connecting cables are used, they must be select-
ed taking into consideration the insulation class
and ambient conditions..
X
The connecting cables of the main power circuit
must be fitted with appropriate ring terminals (for
M8 terminal screws).
X
To secure the main terminal screws so that they
do not come loose, appropriate screw locking ele-
ments must be provided. Schaltbau recommends
using Schnorr washers (or similar).
X
The terminal screws must be tightened with the
specified torque.
X
Undersized conductor cross-sections for the earth
connection may produce a safety hazard.
X
The connections for the coil drive and auxiliary
switches are made with flat plugs. Consequently,
the control wires must be equipped with corre-
sponding flat receptacles (6.3 x 0.8 mm).
X
The maximum permissible conductor cross-section
of the auxiliary switch control wires is 1 mm
2
/ AWG
18 stranded wire.
