Notices On Use In Hazardous Areas According To Atex And Iecex - Siemens SCALANCE S612 Commissioning And Hardware Installation Manual

If a device is operated in an ambient temperature of more than 45 ℃, 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
45 ℃.
2.3

Notices on use in hazardous areas according to ATEX and IECEx

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 94/9 (ATEX95) or the conditions of IECEx, this enclosure or
cabinet must meet the requirements of at least IP54 in compliance with EN 60529.
Take measures to prevent transient voltage surges of more than 40% of the rated voltage.
This is the case if you only operate devices with SELV (safety extra-low voltage).
Safety measures at higher temperatures
If the cable or conduit entry point exceeds 70 °C or the branching point of conductors
exceeds 80 °C, special precautions must be taken. If the equipment is operated in an air
ambient in excess of 50 °C up to 70 ℃, only use cables with an admitted maximum
operating temperature of at least 100 ℃.
EXPLOSION HAZARD
Do not press the RESET button if there is a potentially explosive atmosphere.
SCALANCE S
Commissioning and Hardware Installation Manual, 05/2016, C79000-G8976-C266-06
2.3 Notices on use in hazardous areas according to ATEX and IECEx
WARNING
WARNING
WARNING
WARNING
WARNING
Safety notices
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