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4
Electrical Connections
4.1
Electrical Connections - general
The electrical connections to the centrifugal pump must be carried out by specialised com-
pany in the electrical engineering branch approved by the local energy provider, taking into
account the technical connection requirements.
The connections must be carried out by a qualified electrician.
For this refer to the TAB of the EVS, the VBG 4 (§3) and DIN VDE 1000-10/
1995-5, for example.
The relevant DIN VDE regulations 0100 and in the case of explosion protec-
tion 0165 must be observed.
Information:
i
Compare the available power supply voltage with the details on the motor's
factory plate and select the appropriate switching.
We recommend the use of a motor protection facility. Explosion protected mo-
tors, increased safety (Ex)–e and temperature class T3, must always be con-
nected in accordance with DIN VDE 0170/0171 via a motor protection switch.
Connect the motor in accordance with the circuit diagram in the terminal box
(see chapter 4.3 and 4.4).
Warning! Mortal danger due to electric shock!
There is a danger of electric shock if the installation is carried out improperly!
Please observe:
•
The mains power connection must be a fixed connection.
•
Under no circumstances must there be any conducting connection between the metal
parts of the motor and the water.
An earth leakage circuit breaker (nominal fault current ≤ 30 mA) must be fitted to the
•
mains power connection.
•
The mains power supply cable must be equipped with an all-pole separator with a
contact opening of 3 mm.
•
At the marked connection terminal (at the foot of the motor or next to the terminal box)
an equalising potential with a cross-section of 10 mm² must be fitted.
•
The pump must never be operated unless the terminal box cover is closed!
60
Schmalenberger GmbH + Co. KG
D-72072 Tübingen / Germany
OPERATOR'S MANUAL
Pumpe Typ WK / WKN
Version: 27220 - A
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