20 Rockwell Automation Publication 750-IN001O-EN-P - October 2014
Chapter 2 Prepare for Installation
All Drive Frames
• Drives that are 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 that exceeds 3.5 mA AC and/or 10 mA DC. The
minimum size of the protective earthing (grounding) conductor that is
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 can reduce the ability of RCDs
(residual current-operated protective devices) or RCMs (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.
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