49
4 Additional dust protection requirements
(application in zones 21 and 22)
Intended use
A marking of at least IP 65 and II 2D T …° C must be found on the motor's
rating plate.
Installation and Operation
Cable and line lead-ins
Separately approved lead-ins belonging to category 2G with at least IP 65 or
category 2D are to be used. Any openings that are not used are to be closed with
duly approved plugs.
Operation and Repairs
The motors must not be operated with excessive dust deposits, as these may
lead to the exceeding of the admissible surface temperature. Regular cleaning
must be performed.
The radial shaft seal rings are included in the approval. Only original gaskets are
to be used.
To Next Page