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ProMinent
ProMinent
®
®
5
Installation, electrical
WARNING
•
Explosion-proof pump only: it is essential that you observe the contents of section 9!
5.1
Motor
IMPORTANT
•
Connect electric motor in accordance with VDE regulations as illustrated in the circuit
diagram provided.
•
Check that the mains voltage and frequency agree with the values specified on the
motor ratings plate.
•
Provide corresponding motor protection devices in order to protect the motor from
overload (e.g. motor protection switch with thermal overcurrent release).
Fuses are not motor protection devices!
•
The specified rated motor output applies at a maximum ambient temperature of 40 °C
and installation altitudes below 1000 m above sea level.
The motor output will be reduced if these values are exceeded (refer to VDE 0530).
•
Ensure unobstructed supply of cooling air!
•
Installation in wet rooms or in the open:
Arrange terminal box such that the cable lead-ins point downwards (can be taken into
account when ordering).
Select PG screw glands suitable for the supply line, use reducer if necessary.
Seal cable lead-in well otherwise all other measures will be of little use.
Apply sealing compound to PG screw glands and thread of dummy plugs, firmly tighten and
coat once again with sealing compound.
Thoroughly clean sealing surfaces of terminal box and terminal box cover before re-
installing.
Seals must be bonded on one side.
After a longer operating period, replace brittle seals by new ones.
Different types of motors are used depending on the application and required output.
ProMinent will send you the motor data sheets for the desired motor versions on request.
Motors connected to three-phase AC network
Three-phase squirrel-cage motor
W2
U2
V2
U1
V1
W1
L1
L2
L3
Low voltage
- circuit
fig. 31
Example:
Specified rating
Three-phase network available
Correct motor connection
Direction of rotation reversal:
W2
U2
V2
U1
V1
W1
L1
L2
L3
High voltage
-
circuit
230/400 V
400 V:
Y-circuit
Interchange 2 supply lines
Installation, hydraulic
Page 15
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Troubleshooting
