NORD Drivesystems BU0135 - Manual (Page 24)

SK 105E…175E Motor Starter Manual
24 Pre-series version BU 0135 GB-2713
2.4 Electrical Connection
WARNING THE DEVICES MUST BE EARTHED.
Safe operation of the devices requires that is installed and commissioned by qualified personnel
in compliance with the instructions provided in this Manual.
In particular, the general and regional installation and safety regulations for work on high voltage
systems (e.g. VDE) must be complied with as must the regulations concerning correct use of tools
and the use of personal protection equipment.
Dangerous voltages can be present at the mains input and the motor connection terminals even
when the motor starter is not in operation. Always use insulated screwdrivers on these terminal
fields.
Ensure that the input voltage source is not live before setting up or changing connections to the
unit.
Ensure that the motor starter and motor are specified for the correct supply voltage.
The housing cover must be removed from the SK 1x5E in order to make the electrical connections. Proceed
as follows:
1. Switch off the mains supply and if necessary check and observe the waiting period.
2. Loosen the 4 Allen screws (4mm).
3. Carefully lift the housing cover vertically from off the housing box.
4. The electrical connections and the option slots are now freely accessible.
5. Replace the cover
6. Evenly tighten the Allen screws in a cross-wise direction.