Installation, wiring, commissioning
3.1 Important notes on using the device
SIMATIC CC712
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Operating Instructions, 05/2019, C79000-G8976-C503-01
WARNING
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.
WARNING
If a device is operated in an ambient temperature of more than 60 to 70 °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 60 °C.
3.1.2
Notes on use in hazardous areas according to ATEX / IECEx
WARNING
DIN rail
In the ATEX and IECEx area of application only the Siemens DIN rail 6ES5 710-8MA11
may be used to mount the modules.
WARNING
Requirements for the cabinet/enclosure
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) according to EN 60079-7.
WARNING
Cable
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, only use cables with admitted maximum operating temperature
of at least 80 °C.
WARNING
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).
