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The NSI INDUSTRIES 601-DC2 is a 3/8 inch duplex BX connector designed for securing armored cable (Type AC or BX) to electrical boxes and enclosures. This fitting provides a secure mechanical connection between the armored cable jacket and the box knockout, maintaining ground continuity and cable retention in compliance with standard electrical installation practice. Electricians use this connector on residential and light commercial wiring projects where duplex-style armored cable terminations are required. The 3/8 inch trade size fits standard knockouts on outlet boxes, junction boxes, and panelboards.
This connector is suited for use in residential and light commercial electrical installations wherever 3/8 inch armored cable terminates at a metal box. Common applications include branch circuit wiring in walls and ceilings, retrofit work in existing conduit or BX systems, and new construction wiring where armored cable is the specified raceway type. Licensed electricians and apprentices working under NEC-governed installations will find this a straightforward, code-compatible termination fitting.
Designed as an OEM-style replacement and standard-fit connector for 3/8 inch trade size BX and Type AC armored cable terminations at metal electrical boxes and enclosures.
Installation should be performed by a licensed electrician in accordance with NEC Article 320 governing armored cable. De-energize the circuit and verify with a meter before beginning any termination work. Insert the armored cable into the connector and tighten the clamping screw or snap the connector into the knockout until fully seated before making conductor connections. Do not overtighten fittings on aluminum-jacketed cable to avoid jacket deformation.
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