Siemens SIMATIC NET SCALANCE M826 Operating Instructions Manual page 44

Connecting up
5.1 Safety when connecting up
Suitable cables at high ambient temperatures in hazardous area
At an ambient temperature of ≥ 60 °C, use heat-resistant cables designed for an ambient
temperature at least 20 °C higher. The cable entries used on the enclosure must comply with
the IP degree of protection required by EN IEC / IEC 60079-0, GB 3836.1.
General notes on use in hazardous areas according to UL-HazLoc
If you use the device under UL-HazLoc conditions, you must also adhere to the following
safety notices in addition to the general safety notices for protection against explosion:
WARNING - EXPLOSION HAZARD -
DO NOT DISCONNECT WHILE CIRCUIT IS LIVE UNLESS AREA IS KNOWN TO BE NON-HAZARDOUS.
Restricted area of application
This equipment is suitable for use in Class I, Division 2, Groups A, B, C and D or non-hazardous
locations only.
Restricted area of application
This equipment is suitable for use in Class I, Zone 2, Group IIC or non-hazardous locations only.
Further notes
Safety notice for connecting with a LAN ID (Local Area Network)
A LAN or LAN segment with all the interconnected devices should be contained completely in
a single low voltage power distribution in a building. The LAN is designed either for
"Environment A" according to IEEE802.3 or "Environment 0" according to IEC TR 62102.
Do not connect any electrical connectors directly to the telephone network (telephone network
voltage) or a WAN (Wide Area Network).
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WARNING
WARNING
WARNING
WARNING
WARNING
Operating Instructions, 10/2022, C79000-G8976-C362-07
SCALANCE M826