9.1.1 Supply voltage
Should the pump be connected to the mains in parallel to inductive
consumers (e.g. solenoid valves, motor), the pump must be electri‐
cally isolated when these consumers are switched off.
n
Supply the pumps with voltage via a contactor relay or relay
using separate contacts for the pump.
n
If this is not possible then connect a varistor (part no. 710912)
or an RC member, 0.22 µF / 220 Ω in parallel.
Product
Part no.
Varistor:
710912
RC Gate, 0.22 µF / 220 Ω:
710802
CAUTION!
Safety relevant installation instructions
– The plug is used as a disconnect device. The
plug (or plug and socket) must be clearly
visible and easily accessible to the user.
– The socket must be installed no further than 3
m from the device.
CAUTION!
Safety relevant installation instructions
– There must be a switch or circuit breaker in the
building installation. This must be suitably
located and easily accessible for the user. It
must be marked as a disconnecting device for
the device.
– The switch or circuit breaker should be located
near the equipment.
– Local regulations must be observed.
– The switch or circuit breaker must meet the
applicable requirements of IEC 60947-1 and
IEC 60947-3 and be suitable for the applica‐
tion. It must act as a disconnecting device for
the device be marked.
– The switch or circuit breaker must disconnect
all live conductors.
9.2 Supply voltage connector - low voltage
WARNING!
Danger of electric shock
– For safety reasons, solely operate the low-
voltage pump with protective low voltage
(SELV in accordance with EN 60335-1).
Parallel connection to inductive con‐
sumers
Interference suppression aids
Cable with plug
Cable with open end
Electrical installation
31
