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Connec-
Designation
tion
4
Working connection for process
valve A2
1)
Reduction of the flow at the vent connection 3
▶ Increased overpressure in the upper part of the hous-
ing
Do not operate vent connection 3 with chokes, filters
●
or similar.
Ensure that vent lines are always depressurised.
●
Install vent lines free of tension and kinks.
●
2) only relevant for exhaust air duct and/or increase of protection
class
www.gemu-group.com
Connection
size
G 1/8
CAUTION
12 Electrical connection
Danger of explosion
▶ Risk of injury or death!
●
●
Danger of explosion
▶ Risk of severe injury or death.
●
12.1 Potential equalization device
Connecting the potential equalization device
1. Use a M4x6 screw to attach the potential equalization
device to the product.
ð Potential equalization device for metal housings in po-
tentially explosive areas: Minimum 4 mm².
2. Secure the connection against working itself loose.
12.2 Electrical connection
1. Run the connection cable through the Skintop cable gland.
2. Only strip the connection cable directly before the switch
mounting plate.
3. Lay the individual wires to the terminals.
4. Cut the individual wires to the appropriate length in order
to avoid having unnecessarily long cable loops.
5. Compress the individual wires with wire end ferrules.
6. Connect the individual wires to the terminals in accord-
ance with the connection diagram.
For the electrical connection (M12 plug), we recommend the
M12 connectors for EX areas from IFM, series ENC**A.
17 / 22
12 Electrical connection
DANGER
Do not connect or disconnect when
connected to the power supply.
Do not disconnect the device until the
power has been switched off or the
area has been classified as non-haz-
ardous.
DANGER
Danger from sparking. Never discon-
nect the connection cables when live.
M4x6
GEMÜ 4241
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