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12.1 Potential equalization device
M4x6
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 potentially 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 accordance with the connection diagram.
For the electrical connection (M12 plug), we recommend the M12 connectors for EX areas from IFM, series ENC**A.
The M12 plugs may only be assembled, connected and commissioned by trained personnel. The trained personnel must have
expertise in types of ignition protection, and regulations and provisions for operating media in EX areas.
7. Securely lay the connection cables or ensure sufficient tension relief.
8. Refer to the technical data and cable gland documentation for details of the wire cross sections.
9. Protect the product and the cables from damage.
10. Only clean the product with an anti-static or damp cloth.
11. Only operate the product when it is fully assembled.
12. Only connect the product to intrinsically safe electric circuits that are approved with an EC type examination certificate and
which do not exceed the maximum values of the respective sensors for Ui, Ii, Pi, Ci and Li.
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12 Electrical connection
GEMÜ 4241
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