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The NSI INDUSTRIES 256 is a steel compression-type conduit connector designed to secure rigid metal conduit (RMC) or intermediate metal conduit (IMC) to an enclosure knockout. At 2.5 inches, it fits larger conduit runs common in commercial and industrial electrical installations. The compression fitting design creates a secure, rain-tight mechanical connection without threading, making termination faster in the field. Licensed electricians and electrical contractors install this fitting during rough-in and finishing phases of conduit system work.
This connector is suited for use in commercial, industrial, and residential electrical systems where 2.5-inch steel conduit must be terminated at panel enclosures, junction boxes, or other metallic enclosures. Its steel construction makes it appropriate for exposed conduit runs, equipment rooms, and utility spaces where mechanical durability is required. It is commonly used in new construction and retrofit conduit installations.
Designed as an OEM-style replacement and standard-fit compression connector for 2.5-inch rigid metal conduit and intermediate metal conduit terminations at metallic enclosure knockouts.
Installation should be performed by a licensed electrician in accordance with applicable NEC requirements for conduit fittings and enclosure terminations. De-energize all circuits at the panel before beginning conduit termination work. Use the appropriate conduit wrenches and connector torque to achieve a secure, rain-tight fit. Ensure the knockout size matches the 2.5-inch trade size of this connector before installation.
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