Rockwell Automation 21G PowerFlex 750-Series AC Drives - Manual (Page 15)

Rockwell Automation Publication 750-IN001N-EN-P - April 2014 15
PowerFlex 750-Series AC Drives
All Drive Frames:
• Drives provided in the IP54, NEMA/UL Type 12 enclosure are compliant
with the CE LV Directive when installed in pollution degree 1…4
environments. All other enclosure types must be installed in a pollution
degree 1 or 2 environment to be compliant with the CE LV Directive.
Characteristics of the different pollution degree ratings are provided in the
PowerFlex 750-Series AC Drives Technical Data, publication
750-TD001 .
• PowerFlex 750-Series drives produce leakage current in the protective
earthing conductor which exceeds 3.5 mA AC and/or 10 mA DC. The
minimum size of the protective earthing (grounding) conductor used in
the application must comply with local safety regulations for high
protective earthing conductor current equipment.
ATTENTION: PowerFlex 750-Series drives produce DC current in the protective
earthing conductor which may reduce the ability of RCD’s (residual current-
operated protective devices) or RCM’s (residual current-operated monitoring
devices) of type A or AC to provide protection for other equipment in the
installation. Where an RCD or RCM is used for protection in case of direct or
indirect contact, only an RCD or RCM of Type B is allowed on the supply side of
this product.