KNF N838 E Series - Page 25

Diaphragm pump N838_E
Installation and connection
Translation of Original Operating and Installation Instruction, KNF 347394-347605
09/23
25
à
Protect the pump motors, e.g., in accordance with EN
60204-1 (overcurrent protection, overload protection).
Refer to the type plate for the maximum current con-
sumption of the pump.
à
Install an Emergency Off device such that it is not possi-
ble for there to be an automatic restart or for hazardous
situations to persons and property to occur.
à
Install the pumps in such a way that it is not possible to
touch electrically live parts (electrical connection).
Fastening the
connection ca-
bles
à
Fasten the connection cables so that
à
the cables do not come into contact with movable or
hot parts.
à
the cables cannot be worn or damaged on sharp cor-
ners or edges
à
no tensile and pressure forces are exerted on the con-
nection point of the cables (strain relief)
The motors are protected against overload by a thermal
switch as standard.
Connecting the pump
1. Confirm that the power supply meets the parameters
listed on the pump type plate. Refer to the pump type
plate for the rated current draw.
The supply voltage may deviate by maximum +10% or –
10% from the values on the type plate.
2. Connect the ground conductor to the pump motor.
3. Connect the motor wires.
4. Connect the positive and negative terminals.
Ensure the correct polarity:
Red connection cable: +
Black connection cable: -
EN
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US
EN