Elmo Rietschle S-VSI 300(44) - Manual (Page 21)

21
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Installation
5.6 Connecting the motor
DANGER
Improper electrical connections may cause
severe injury or death!
The electrical installation may only be done by
a qualified, licensed electrician observing local
codes and regulations. The customer must
provide a main disconnect switch.
a) The motor’s electrical data is given on the data
plate (Fig. 3/N) or on the motor data plate (Fig. 2/
P
1
). The motor specifications must comply with
the existing power supply (current type, voltage,
frequency).
b) Connect the motor via a motor overload
protection switch. We recommend using
motor protection switches with delayed switch
off, depending on possible excess current.
Temporary excess current may occur when the
pump is started cold.
NOTICE
Power supply
The conditions at the installation location must
match the information on the motor data plate.
Without de-rating the following is permissible:
• ± 5% Voltage deviation
• ± 2% Frequency deviation