Installation and connection
Diaphragm pump N680 EX
22
Translation of Original Operation and Installation Instruction, english, KNF 325438 02/22
7.2 Electrical connection
DANGER
Danger to life from electric shock
à
Only have the pump connected by an autho-
rized specialist.
à
Only have the pump connected if the power
supply is disconnected.
WARNING
Risk of explosion from electrostatic charge
à
Connect the pump so that the risk of ignition
from electrostatic charge is avoided.
à
Carefully ground the pump.
à
When connecting to a power source, carefully read and observe the
motor operating instructions (including the notice on insulation resis-
tance measurement).
à
When connecting to a power source, observe the applicable regula-
tions, directives, and technical standards.
WARNING
Automatic restart after interruption of the power
supply
If the power supply is interrupted or the thermal
overload fuse of the motor is activated, the pump
will automatically restart.
à
Take appropriate protective measures.
à
Install a device for separating the pump motor from the electrical mains
in the electrical installation.
à
Install an Emergency Off device such that it is not possible for there to
be an automatic restart or for hazardous situations to persons and
property to occur.
Potentially explosive
atmospheres
à
Only place the electrical equipment that is necessary for the operation
of the pump .
à
Take lightning protection measures.
Fastening the connection cables
à
Fasten the connection cables so that
– the cables do not come into contact with movable or hot parts.
– the cables cannot be worn or damaged on sharp corners or edges
– no tensile and pressure forces are exerted on the connection point
of the cables (strain relief)
