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Installation and commissioning
3.2 Procedure for installation and commissioning
Replacing components
EXPLOSION HAZARD
SUBSTITUTION OF COMPONENTS MAY IMPAIR SUITABILITY FOR CLASS I, DIVISION
2 OR ZONE 2.
General notices on use in hazardous areas according to ATEX
Requirements for the cabinet/enclosure
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.
To comply with EU Directive 94/9 (ATEX95), this enclosure must meet the requirements of
at least IP54 in compliance with EN 60529.
Suitable cables for temperatures in excess of 70 °C
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.
Protection against transient voltage surges
Provisions shall be made to prevent the rated voltage from being exceeded by transient
voltage surges of more than 40%. This criterion is fulfilled, if supplies are derived from
SELV (Safety Extra-Low Voltage) only.
3.2
Procedure for installation and commissioning
Installation and commissioning
Note
The module must be installed so that its upper and lower ventilation slits are not covered,
allowing adequate ventilation.
During operation, keep the hinged front panel closed.
16
WARNING
WARNING
WARNING
WARNING
CP 343-1 ERPC
Manual, 03/2010, C79000-G8976-C239-02
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