This equipment is intended for use in a Pollution Degree 2 industrial environment, in overvoltage
Category II applications (as defined in IEC 60664-1), at altitudes up to 2000 m (6562 ft) without
derating.

This equipment is considered Group 1, Class A industrial equipment according to IEC/CISPR 11.
Without appropriate precautions, there may be difficulties with electromagnetic compatibility in
residential and other environments due to conducted and radiated disturbances.

This equipment is supplied as open-type equipment. It must be mounted within an enclosure that is
suitably designed for those specific environmental conditions that will be present and appropriately
designed to prevent personal injury resulting from accessibility to live parts. The enclosure must have
suitable flame-retardant properties to prevent or minimize the spread of flame, complying with a
flame spread rating of 5VA, V2, V1, V0 (or equivalent) if nonmetallic. The interior of the enclosure
must be accessible only by the use of a tool. Subsequent sections of this publication may contain
additional information regarding specific enclosure type ratings that are required to comply with
certain product safety certifications.

In addition to this publication, see the following:

 Industrial Automation Wiring and Grounding Guidelines, publication

1770-4.1

, for additional

installation requirements

 NEMA Standard 250 and IEC 60529, as applicable, for explanations of the degrees of protection

provided by enclosures

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