www.gemu-group.com
14 / 24
GEMÜ 0322
11 Electrical connection
11 Electrical connection
DANGER
Risk of electric shock
▶
Risk of injury or death (if operating
voltage is higher than safe extra low
voltage).
▶
Electric shock can cause severe burns
and fatal injury.
●
Work on electrical connections only by
qualified trained personnel.
●
Disconnect the cable from the power
supply before making the electrical
connection.
●
Connect the protective earth con-
ductor.
CAUTION
●
Power supply varies dependent on the design (see
product label).
●
Do not bridge terminals!
Required for electrical connection:
–
Crosshead screwdriver
–
Small flat screw driver
NOTICE
▶
Every valve solenoid must have a fuse appropriate for its
rated current (max. 3 times rated current in accordance
with DIN 41571 or IEC 60127-2-1) or a motor protection
switch with short circuit and thermal instantaneous trip
(setting to rated current) connected upstream as protec-
tion against short circuits. This fuse may be located in
the corresponding power supply unit or must be connec-
ted separately upstream. The fuse rated voltage must be
equal to or greater than the specified nominal voltage of
the solenoid. The breaking capacity of the fuse unit must
be equal to or greater than the maximum short-circuit
current occurring at the site of installation (usually 1500
A).
Plug form A
(DIN EN 175301-803)
6
4
5
1
2
3
Fig. 3: Electrical connection of plug
1. Disconnect the plant from power supply.
2. Unscrew retaining screw
1
.
3. Pull off plug
2
with terminal block
3
from solenoid.
4. Press terminal block
3
carefully out of plug
2
.
5. Unscrew cable entry
6
.
6. Remove pressure ring
4
and gasket
5
.
7. Insert cable through cable entry
6
, pressure ring
4
, gasket
5
and plug
2
.
8. Connect the cable.
9. Insert terminal block
3
again in the plug
2
until it audibly
clicks in position.
10. Screw plug
2
to solenoid with retaining screw
1
(max.
0.3 Nm).
11. Close cable entry
6
.
Fig. 4: Rear of terminal block
Item
Name
1
Supply voltage
2
Supply voltage
3
Not connected
Earth
