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2019-08-07 / V1.0
Contactors C193/C294 – Installation and Maintenance Instructions
Installation
7.3 Checks
After the installation is completed, do the following
checks:
X
Check that the contactors are correctly installed
on the base plate and fit tightly.
X
Check that the wires or busbars are correctly in-
stalled and fit tightly at the main contacts.
X
Check that the control wires of the coil terminals
are correctly installed and in correct polarity.
X
Check that the control wires are properly connect-
ed to the auxiliary switch.
Use a continuity tester to check that the wiring is
correct and the auxiliary switch is functioning cor-
rectly.
X
Perform several activation and deactivation op-
erations of the contactor without the main circuit
active.
X
Check the pull-in and drop-off voltage according
to the requirements of Schaltbau. Refer to
cata-
logues B193
and
B294.
X
Check the laying of cables. Cables must not be
squeezed or bent. If applicable bundle and secure
with cable ties.
X
After each installation and after maintenance
works, always perform complete checks according
to these standards:
-
EN/IEC 60077-2
-
EN/IEC 60947-4-1
