VH... / VK...
5
Electrical connection
5.1 General electrical connection information
DANGER! Risk of death due to electric current!
The electrical connection of the VH... / VK... should only be carried out by a fully qualified
electrician.
Always de-energize the system before connecting the wires of the mains cable.
CAUTION! Destruction or damage of reed contact!
The max. contact loads mentioned on the type plate refer to pure ohmic loads and may
not be exceeded under any circumstances.
Pay attention to sect. 1.1.2 Reed contact - Switching of inductive or capacitive loads.
Additional information for flow switch version VH...X
The flow switch version VH...X can be connected as a simple electrical device to a certi-
fied intrinsically safe circuit.
The flow switch version VH...X is equipped with either an elbow plug connector EN
175301-803-A or a permanent connecting cable.
To prevent electrostatic charging the devices have to be connected to the equipotential
bonding via the elbow plug connector or the fixed connecting cable.
5.2 Plug connector EN 175301-803-A
Loosen the central screw M3x35 and disconnect the cable socket from the connec-
tor ( Fig. 7). Pull the central screw out of the cable socket .
Open the core of the cable socket with a screwdriver or similar tool ( Fig. 8).
Loosen the screwed cable gland M16x1,5 ( Fig. 9).
Fig. 7
Technical changes reserved
Fig. 8
Electrical connection
Fig. 9
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