Hubbell Appleton UNF200NR-A Rigid Conduit Fittings

The Appleton UNF200NR-A Unilet is a 2-inch, copper-free aluminum non-expansion conduit union for rigid conduit (RMC) and IMC that provides a detachable, threaded connection between two lengths of conduit or between conduit and an enclosure. Designed for hazardous locations, the unit is explosionproof and dust-ignitionproof and uses tapered female threads paired with smooth, rounded bushings to protect insulation and ensure ground continuity in tight spaces. A concentric-ring interlock design helps achieve a smaller overall diameter (outside diameter about 3.72 in; length about 2.31 in) for easier installation where clearance is limited, while maintaining a secure, rigid joint. The UNF200NR-A features female-threaded ends to mate with standard UNF conduit fittings and is intended for use with threaded rigid metallic conduit and IMC. As a non-expansion union, it permits disassembly without rotating the enclosure, facilitating maintenance or modifications to a conduit run, and is commonly cataloged for straight conduit-to-conduit connections in hazardous-location installations; it is listed to UL 886 (1203) in typical Appleton/Emerson references.