Assembling
4.1 Safety notices for installation
SCALANCE XR-500
Operating Instructions, 05/2017, A5E03275845-11
39
The device may only be operated in an environment with pollution degree 1 or 2 (see IEC
60664-1).
When used in hazardous environments corresponding to Class I, Division 2 or Class I,
Zone 2, the device must be installed in a cabinet or a suitable enclosure.
Safety notices for use according to ATEX and IECEx
If you use the device under ATEX or IECEx conditions you must also keep to the following
safety notices in addition to the general safety notices for protection against explosion:
To comply with EC Directive 2014/34/EU (ATEX 114) or the conditions of IECEx, this
enclosure or cabinet must meet the requirements of at least IP54 in compliance with EN
60529.
Safety notices when using the device as industrial control equipment according to UL 61010-
2-201
If you use the device under UL 61010-2-201 conditions you must also keep to the following
safety notices in addition to the general safety notices for protection against explosion:
The devices are "open equipment" acc. to the standard UL 61010-2-201. To fulfill
requirements for safe operation with regard to mechanical stability, flame retardation,
stability, and protection against contact, the following alternative types of installation are
specified:
• Installation in a suitable cabinet.
• Installation in a suitable enclosure.
• Installation in a suitably equipped, enclosed control room.
If the cable or housing socket exceeds 70 °C or the branching point of the cables exceeds
60 °C, special precautions must be taken. If the equipment is operated in an air ambient in
excess of 40 °C, only use cables with admitted maximum operating temperature of at least
80 ℃.
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