Siemens SENTRON - Connecting the Inputs and Outputs of the Motor Operator

Connection
6.3 Connecting the control circuit
Manual, 08/2017, L1V30368969104A-02
73
6.3.1.2
Connecting the inputs and outputs of the motor operator
The connection of the motor operator of the 3KC4 and 3KC8 transfer switching equipment is
described in the following section. The connectors required for this are included in the scope
of supply.
WARNING
Hazardous voltage!
Ensure there is no live voltage before connecting the motor operator to the control circuit.
NOTICE
Damage to the device
The product is designed for a rated impulse voltage resistance U
imp
of 12 kV for the main
circuit and 4 kV for the motor operator.
If you use the product in an application with possible overvoltages of > 4 kV, you must
additionally employ suitable measures such as surge arresters to limit these overvoltages
to no more than 4 kV.
See the table below for the requirements of the supply lines needed for the connection:
Cu
I
max
1.5 ... 2.5 mm
2
≤ 100 m