Electrical Connection - Pfeiffer Vacuum HiPace PM 071 282-X Operating Instructions Manual

4

Electrical connection

Voltage-bearing elements
Danger to life from electric shock as a result of improper installation.
 Electrical connection may be carried out only by trained and authorised electricians.
 Ensure the system is adequately earthed.
 Establish an adequate fuse protection on customer side (depending on the model).
 Unscrew and remove the cover of the relay box.
 Pay attention to grounding cables!
1 9
L N PE
AC out
6
1b
Fig. 3: Backing pump relay box, single phase, 7 A
1 Casing
1.1 Casing cover
1a Control lead for electronic drive unit
1b Mains connection output, backing pump
1c Mains connection input
3 Connection terminal
4 Semiconductor relay
 Install the power supply and the backing pump connection, according to their technical
data to the terminals of the relay box.
– L/L1: Conductor
– N: Neutral
– PE: Protective earth
 Secure cables with cable fittings.
 Close the relay box.
DANGER
3 4
+ -
L1 N PE
AC in
6
1c
6
7
9
11
L/L1 Conductor (black)
N
PE
Electrical connection
1.1
11
7
1a
Cable fitting M16
Cable fitting M12
Fuse
Earthing cable
Neutral (blue)
Protective earth (yellow/green)
7