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The ORBIT INDUSTRIES RC-350 is a cast steel threaded coupling designed to join two ends of threaded rigid conduit or IMC conduit sections. Built for trade installation in conduit runs where a secure, code-compliant mechanical connection is required, this coupling accepts 3.5-inch trade size conduit threads on both ends. The cast steel construction provides the durability needed for industrial and commercial electrical installations. Licensed electricians and electrical contractors install this fitting as part of rigid metal conduit systems in new construction and retrofit work.
The RC-350 is suited for use in residential, commercial, and industrial electrical conduit systems where rigid metal conduit or IMC is specified. It is commonly installed in exposed conduit runs, embedded installations, and raceway systems requiring a threaded mechanical splice between conduit lengths. The 3.5-inch trade size makes this coupling appropriate for larger branch circuit and feeder conduit runs.
Designed as an OEM-style fitting for use with 3.5-inch trade size rigid metal conduit and IMC conduit systems in standard threaded conduit installations.
Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC). De-energize all circuits in the conduit run before beginning work. Apply an appropriate thread lubricant or anti-seize compound to conduit threads before hand-tightening, then wrench-tighten to a secure fit without over-torquing the coupling body. Inspect threads on both conduit ends for damage before installation.
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