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2
SAFETY
2.1
Hazardous locations installation instructions
These devices are open-type devices that are to be installed in an enclosure suitable for the
environment and can only be accessed with the use of a tool or key.
This equipment is suitable for use in Class I, Division 2, Groups A, B, C, and D or nonhazardous
locations only. This equipment shall be mounted in an ATEX Zone 2 certified enclosure with a
minimum ingress protection rating of at least IP54 (as defined in EN 60529) and used in an
environment of not more than Pollution Degree 2 (as defined in EN 60664-1) when applied in Zone 2
environments. The enclosure must be accessible only by the use of a tool.
Explosion hazard
•
Do not disconnect equipment unless the power has been removed or the area is known to be non-
hazardous.
•
WARNING
Substitution of any components may impair suitability for class I, division 2.
•
Batteries must only be changed in an area free of ignitable concentration.
All antennas, antenna cables and wiring have not been evaluated as external wiring.
Provision shall be made to prevent the rated voltage from being exceeded by transient disturbances
of more than 140 % of the rated voltage when applies in Zone 2 environments.
Wieland Electric GmbH | BA001293 | 02/2023 (Rev. A)
Safety
7
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