For Class I, Division 2:
This equipment is an open-type device and is meant to be installed in an
enclosure suitable for the environment such that the equipment is only
accessible with the use of a tool.
This equipment is suitable for use in Class I, Division 2, Groups A, B, C and D or non-
hazardous locations only.
Warning – Explosion Hazard – Do not disconnect equipment unless power has
been removed or the area is known to be non-hazardous.
Warning – Explosion Hazard – Do not replace batteries unless the area is
known to be free of ignitable concentrations.
For AEx/Ex Zone 2:
The equipment shall only be used in an area of pollution degree 2, as defined in IEC 60664-1.
The equipment shall be installed completely within an enclosure that provides a minimum
ingress protection of IP 54 in accordance with UL 60079-0 and only accessible by the use of a
tool.
Transient protection shall be provided that is set at a level not exceeding 140% of the peak
rated voltage value at the supply terminals to the equipment. This protection is supplied
internal to the equipment. No additional protection is required.
The wire size, torque rating of 12-24 AWG, 0.37-0.44 ft.-lbs. and suitable supply wire
temperature rating of 96ºC minimum shall be provided for the input power terminal block.
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General