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What does the ``RA`` suffix on the end of the catalog number PQ3606GRA indicate?

Determining what the "RA" suffix indicates on the end of busplug catalog numbers.

Product Line:
I-Line Busway and accessories.

Selection of busway plugs.

Clarification of catalog number.

The ``RA`` suffix on a PQ3606GRA indicates that this busway plug-in unit has factory installed Class R fuse rejection clips, that all current carrying components are copper and it will ship with copper compression lugs.  
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