Electrical Connection - Wilo -VeroLine-IPH-O Einbau- Und Betriebsanleitung

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7.2

Electrical connection

Safety
Preparation/notes
26
DANGER! Risk of fatal injury!
An improper electrical connection can result in a fatal electrical
shock.
• Have the electrical connection established by an electrician
approved by the local electricity supplier only and in accordance
with local regulations.
• Observe the installation and operating instructions for the acces-
sories!
WARNING! Risk of mains overload!
An inadequate mains design can lead to system failures and even to
cable fires due to mains overload.
• When designing the mains, with regard to the cable cross-sections
and fuses, give special consideration to the fact that short-term
simultaneous operation of all pumps is possible in multi-pump
operation.
• The electrical connection must be established via a fixed power cable,
which is provided with a plug device or an all-pole switch with a con-
tact opening width of at least 3 mm (in accordance with VDE 0730
Part 1 in Germany).
• The connection line is to be installed in such a way that it cannot
under any circumstances come into contact with the pipe and/or the
pump and motor housing.
• In order to ensure drip protection and strain relief on the threaded
cable connection, cables are to be used which have a sufficient outer
diameter and are to be screwed sufficiently tightly. To get rid of any
drips that accumulate, the cables are to be bent into a drain loop near
the threaded cable connection.
• Non-assigned threaded cable connections must remain sealed with
the plugs provided by the manufacturer.
• When pumps are used in systems with water temperatures above
90 °C, a suitably heat-resistant power cable must be used.
• Check the current type and voltage of the mains connection.
• Observe the rating plate information for the pump. The current type
and voltage of the mains connection must correspond to the details
on the rating plate.
• Fuse protection on mains side: depending on the motor's rated cur-
rent and the activation type.
• Earth the pump/installation in accordance with the regulations.
WILO SE 11/2017