Safety Guidelines for Hazardous Locations
The chassis is suitable for use in Class I, Division 2, Groups A, B, C, D, T4 hazardous
locations; Class I, Zone 2, AEx nA IIC T4 and Ex nA IIC T4 hazardous locations; and
nonhazardous locations only. Follow these guidelines if you are installing the chassis in a
potentially explosive environment. Not following these guidelines may result in serious injury
or death.
Caution
Do not disconnect I/O-side wires or connectors unless power has been
switched off or the area is known to be nonhazardous.
Caution
Do not remove modules unless power has been switched off or the area is
known to be nonhazardous.
Caution
Substitution of components may impair suitability for Class I, Division 2.
Caution
For Division 2 and Zone 2 applications, install the system in an enclosure
rated to at least IP54 as defined by IEC/EN 60079-15.
Special Conditions for Hazardous Locations Use in Europe and
Internationally
The chassis has been evaluated as Ex nA IIC T4 Gc equipment under DEMKO 07
ATEX 0626664X and is IECEx UL 14.0089X certified. Each device is marked II 3G and is
suitable for use in Zone 2 hazardous locations, in ambient temperatures of -40 °C ≤ Ta ≤
70 °C.
Caution
You must make sure that transient disturbances do not exceed 140% of
the rated voltage.
Caution
The system shall only be used in an area of not more than Pollution
Degree 2, as defined in IEC/EN 60664-1.
Caution
The system shall be mounted in an ATEX/IECEx-certified enclosure with
a minimum ingress protection rating of at least IP54 as defined in IEC/EN 60079-15.
Caution
The enclosure must have a door or cover accessible only by the use of a
tool.
Electromagnetic Compatibility Guidelines
This product was tested and complies with the regulatory requirements and limits for
electromagnetic compatibility (EMC) stated in the product specifications. These requirements
and limits provide reasonable protection against harmful interference when the product is
operated in the intended operational electromagnetic environment.
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