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The ROBROY KNPAR-4 is a parallel-type conduit clamp designed to secure 4-inch trade size rigid metal conduit runs in parallel configurations. Constructed from malleable iron with a hot dip galvanized finish, this clamp delivers corrosion resistance suitable for exposed indoor and outdoor electrical installations. Overall dimensions are 6-13/16 inches in length by 4-13/16 inches in width. It meets UL 6 and CSA C22.2 approval requirements and conforms to ANSI C80.1, making it appropriate for code-compliant conduit support work on commercial and industrial projects. Licensed electricians and conduit installers are the primary trade for this fitting.
The KNPAR-4 is used in applications where rigid metal conduit must be supported and kept parallel to a surface or adjacent conduit run. Typical installations include commercial buildings, industrial facilities, and utility infrastructure where 4-inch RMC is routed along walls, ceilings, or structural steel. The hot dip galvanized finish provides added durability in damp or wet-rated locations. Standard packaging is 10 clamps per carton, suited for larger conduit support projects requiring multiple support points at consistent intervals.
Designed as an OEM-style support fitting for 4-inch trade size rigid metal conduit installations per ANSI C80.1 and UL 6 requirements.
Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize all circuits in the work area before beginning conduit support work. Use appropriate fasteners rated for the mounting surface and conduit weight. Do not modify the clamp body, as alterations may void UL listing.
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