Diaphragm Vacuum Pumps N86.16
Installation and connection
Translation of original Operating and Installation Instructions, english, KNF121260-121531 04/20
15
7.2. Electrical connection
DANGER
Extreme danger from electrical shock
Only have the pump connected by an authorized
specialist.
Only have the pump connected when the power
supply is disconnected.
When connecting the device to a power source, the relevant
standards, directives, regulations, and technical standards
must be observed.
In the electrical installation, arrangements (complying with
EN 60335-1) must be made for disconnecting the pump motor
from the electrical supply.
The motors of the pump must be protected according to
EN 60204-1 (protection against excess current, or overload-
ing).
For max. operating current of the pump see pump’s type plate.
It is recommended that an additional “Emergency Stop” switch
is installed.
The pump must be installed so that contact with live parts is
impossible.
Fasten the connection cables so that:
the cables do not contact moving or hot parts.
the cables will not chafe or be damaged on sharp edges or
corners.
no pulling or pushing forces are exerted on the cable’s
connection points (strain relief).
The pumps are fitted as standard with a thermal switch
to protect against overloading.
Project-specific pumps that are
not
fitted with a thermal switch
must be protected by the user against the risk of overheating.
Connecting pump
1. Compare the supply data with the data on the motor plate. For
maximum operating current of the pump see pump’s type
plate.
The voltage must not vary by more than + 10% and – 10%
from that shown on the type plate.
2. Connect the earth (ground) wire to the motor.
3. Connect the mains cables.
Attach connection cables
Thermal switch
