SCALANCE X-400
Operating Instructions, 06/2015, C79000-G8976-C186-12
77
Safety notices for installation
Safety notices
When installing the device, keep to the safety notices listed below.
If a device is operated in an ambient temperature of more than 50 °C, the temperature of
the device housing may be higher than 70 °C. The device must therefore be installed so
that it is only accessible to service personnel or users that are aware of the reason for
restricted access and the required safety measures at an ambient temperature higher than
50 °C.
Safety notices on use in hazardous areas
General safety notices relating to protection against explosion
SUBSTITUTION OF COMPONENTS MAY IMPAIR SUITABILITY FOR CLASS I, DIVISION
2 OR ZONE 2.
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.
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