Electrical connection
CUM 750 / CUS 70
16
Hauser
Connecting Pumps 3 – 4
Pumps 3 and 4 (with Three and Four channel version) are connected using an extra distributor box
(optionally available).
Connecting X1 terminal block in the distributor box:
Pin No.
Name
Description
1
L
Phase
2
N
Neutral
3
PE
Pump 1 earth
4
PE
Instrument protective
earth
5
1
L1 Pump 1
6
2
L1 Pump 2
7
3
L1 Pump 3
8
4
L1 Pump 4
Connecting N terminal block in the distributor box:
Pin No.
Name
Description
1
N to F1
2
N Pump 1
3
N Pump 2
4
N Pump 3
5
N Pump 4
Connecting PE terminal block in the distributor box:
Pin No.
Name
Description
1
Mains protective earth
2
Pump 1 protective earth
3
Pump 2 protective earth
4
Pump 3 protective earth
5
Pump 4 protective earth
Connecting X2 terminal block in the distributor box:
Pin No.
Name
Description
1
PE
Instrument protective
earth
2
L1
L1 instrument
3
N
N instrument
