5 Installation at Site
31 of 92
ILN / ILNC / ILNR
5211.8/08-EN
5.7 Electrical connection
DANGER
Electrical connection work by unqualified personnel
Risk of fatal injury due to electric shock!
▷
Always have the electrical connections installed by a trained and qualified
electrician.
▷
Observe regulations IEC 60364 and, for explosion-proof models, EN 60079.
WARNING
Incorrect connection to the mains
Damage to the power supply network, short circuit!
▷
Observe the technical specifications of the local energy supply companies.
1. Check the available mains voltage against the data on the motor name plate.
2. Connect the earthing of pump, baseplate or motor to the earthing of the
system.
3. Select an appropriate starting method.
NOTE
Fitting a circuit breaker for the motor and a thermistor motor protection relay is
recommended.
5.7.1 Setting the time relay
CAUTION
Switchover between star and delta on three-phase motors with star-delta starting
takes too long.
Damage to the pump (set)!
▷
Keep switch-over intervals between star and delta as short as possible.
Table 9:
Time relay settings for star-delta starting:
Motor rating
Y time to be set
[kW]
[s]
≤ 30
< 3
> 30
< 5
5.7.2 Connecting the motor
NOTE
In compliance with IEC 60034-8, three-phase motors are always wired for clockwise
rotation (looking at the motor shaft stub).
The pump's direction of rotation is indicated by an arrow on the pump.
1. Match the motor's direction of rotation to that of the pump.
2. Observe the manufacturer's product literature supplied with the motor.
DOL starting
The motor can be wired in star configuration or delta configuration. The voltage and
wiring are stamped on the name plate of the motor.
Summary of Contents for ILN
Page 1: ...In line Pump ILN ILNC ILNR Operating Manual ...
Page 89: ...Index 89 of 92 ILN ILNC ILNR 5211 8 08 EN W Warnings 8 Warranty claims 7 ...
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