
Connecting up
6.1 Lightning protection, power supply and grounding
SCALANCE W786-x
36
Operating Instructions, 11/2014, A5E03678337-07
WARNING
EXPLOSION HAZARD
SUBSTITUTION OF COMPONENTS MAY IMPAIR SUITABILITY FOR CLASS I, DIVISION
2 OR ZONE 2.
WARNING
EXPLOSION HAZARD
DO NOT OPEN WHEN ENERGIZED.
General notes on use according to ATEX and IECEx
WARNING
Take measures to prevent transient voltage surges of more than 40% of the rated voltage.
This is the case if you only operate devices with SELV (safety extra-low voltage).
General notes on use in hazardous areas according to UL-HazLoc
WARNING
EXPLOSION HAZARD
DO NOT DISCONNECT WHILE CIRCUIT IS LIVE UNLESS AREA IS KNOWN TO BE
NON-HAZARDOUS.
This equipment is suitable for use in Class I, Division 2, Groups A, B, C and D or non-
hazardous locations only.
This equipment is suitable for use in Class I, Zone 2, Group IIC or non-hazardous locations
only.
WARNING - Cat. Nos. EAPN-Wx-yy-zx (US installation only):
- PLTC cable type and manufacturer shall be specified: Listed (QPTZ), Type 5240U1
(Waterdog PLTC-ER) manufactured by Belden.
- The PLTC cable for the power supply must be installed in a manner to avoid tensile stress
at the termination fittings in accordance with Article 501.10 (B)(1)(4) of the NEC.
- The PLTC cable for the power supply must be installed in accordance with Article 725.154
(D)(1) through (D)(4) of the NEC.