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The THOMAS BETTS E958N is a PVC conduit end cap designed to terminate and seal the open end of 4-inch trade size rigid PVC conduit. The cap uses a solvent-weld glued connection to create a secure, weatherproof closure that protects conduit interiors from debris, moisture, and physical damage. Constructed from polyvinylchloride, the fitting is suitable for non-hazardous locations. Licensed electricians and electrical contractors install this fitting as part of conduit stub-up terminations, spare conduit sealing, and conduit end protection in both indoor and outdoor applications.
This end cap is used in commercial and residential electrical installations where rigid PVC conduit requires a clean, insulated termination point. Common applications include sealing spare conduit runs in concrete slabs, protecting conduit ends in underground duct banks, and capping stub-ups awaiting future wire pulls. The glued connection method ensures a permanent bond consistent with standard PVC conduit installation practice.
Designed as an OEM-style replacement and standard-use fitting for 4-inch trade size rigid PVC conduit systems in non-hazardous locations.
Installation is performed by licensed electricians following NEC guidelines for PVC conduit systems. De-energize all circuits in the conduit before beginning work. Clean and dry both mating surfaces before applying PVC solvent cement to ensure a proper bond. Allow adequate cure time per the solvent cement manufacturer instructions before handling or burying the assembly.
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