Electrical Connection; Information For Contactor And Motor Contactor Selection; Connection Of The Driving Motor - GEA HG22e/160-4 Assembly Instructions Manual

5| Electrical connection

DANGER
ATTENTION When attaching accessories with an electrical cable, a minimum
INFO

5.1 Information for contactor and motor contactor selection

All protection devices and switching or monitoring units must be fitted in accordance with the local
safety regulations and established specifications (e.g. VDE) as well as with the manufacturer's infor-
mation. Motor protection switches are required! Motor contactors, feed lines, fuses and motor
protection switches must be rated on the basis of the maximum working current (see name plate).
For motor protection use a current-dependent and time-delayed overload protection device for moni-
toring all three phases. Set the overload protection device so that it must be actuated within 2 hours,
if there is 1.2 times the max. working current.

5.2 Connection of the driving motor

The compressor is designed with a motor for star-delta circuits.
Designation on the name plate
∆ / Y
Star-delta start-up is only possible on 230 V voltage supply. Example:
Direct start
L1 L2 L3
INFO
Risk of electric shock! High voltage!
Only carry out work when the electrical system is disconnected
from the power supply!
bending radius of 3 x the cable diameter must be maintained for
laying the cable.
Connect the compressor motor in accordance with the circuit diagram
(see inside of terminal box).
Use suitable cable entry point of the correct protection type (see
name plate) for routing cables into the terminal box. Insert the strain
reliefs and prevent chafe marks on the cables.
Compare the voltage and frequency values with the data for the
mains power supply.
Only connect the motor if these values are the same.
230 V ∆
Star-delta start
L1 L2
L1 L2
The connection examples shown refer to the standard version. In the case
of special voltages, the instructions affixed to the terminal box apply.
Sticker on the terminal box
Direct start only
L3
L3
L3
L1 L2
400 V Y
L1 L2 L3
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