Connection
5.2 Lightning protection, power supply and grounding
SCALANCE W786C
Operating Instructions, 07/2019, A5E03692138-12
43
General notes on use in hazardous areas according to UL-HazLoc
WARNING
EXPLOSION HAZARD
You may only connect or disconnect cables carrying electricity when the power supply is
switched off or when the device is in an area without inflammable gas concentrations.
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.
WARNING -Cat. Nos. EAPN-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.
Содержание SIMATIC NET SCALANCE W786C Series
Страница 12: ...Security recommendations SCALANCE W786C 12 Operating Instructions 07 2019 A5E03692138 12 ...
Страница 68: ...Dimension drawing SCALANCE W786 SCALANCE W786C 68 Operating Instructions 07 2019 A5E03692138 12 ...
Страница 70: ...Approvals SCALANCE W786C 70 Operating Instructions 07 2019 A5E03692138 12 ...
Страница 72: ...Index SCALANCE W786C 72 Operating Instructions 07 2019 A5E03692138 12 ...