Vacuum Pumps N 920 APE-W and N 920 APDC-B
Installation and connection
Translation of original Operating and Installation Instructions, english, KNF 121690-121708 09/19
17
7.2. Electrical connection
N 920 APE-W
1. Compare the supply data with the data on the motor-plate.
2.
Insert the power cable’s plug into a properly installed shock-
proof socket.
N 920 APDC-B
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).
Attach connection cables
