Connecting up
5.6 Lightning protection, power supply, and grounding
SCALANCE W788-xPRO/RR / W74x-1PRO/RR
Operating Instructions, 07/2014, A5E02280448-08
39
SUBSTITUTION OF COMPONENTS MAY IMPAIR SUITABILITY FOR CLASS I, DIVISION
2 OR ZONE 2.
DO NOT OPEN WHEN ENERGIZED.
Special notes for the SCALANCE W786-xPRO/RR
Warning Notices cULus haz.loc.
This equipment is suitable for use in Class I, Division 2, Groups A, B, C, D; Class I, Zone 2,
Group IIC or non-hazardous locations.
WARNING - Cat. Nos. EAP-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.
WARNING -Cat. Nos. EAP-Wx-yy-zx (Canadian installation only):
- TC cable type and manufacturer shall be specified: Listed (QPOR), Type JZ-604 TC
manufactured by Helukabel GmbH.
- The TC cable for the power supply must be installed in areas of industrial establishments
that are inaccessible to the public and in a manner that meets the requirements in Rule 12-
2202(2) of the CEC:
Installed in conduit, other suitable raceway, or direct buried, when not in cable tray. Provided
with mechanical protection where subject to damage either during or after installation.
Installed only where qualified persons service the installation.
When operated in potential hazardous areas:
WARNING - Explosion Hazard – Do not disconnect while circuit is live unless area is known
to be non-hazardous
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