Cooper Crouse-hinds CPR21 Conduit Coupling 1/2 Inch Rigid Imc

Product Description

The COOPER CROUSE-HINDS CPR21 is a malleable iron conduit coupling designed for joining rigid metal conduit (RMC) and intermediate metal conduit (IMC) runs at a 1/2 inch trade size. It uses a compression-style connection to form a concrete-tight fit, making it suitable for installations where the conduit path passes through or adjacent to concrete structures. At 0.23 pounds, the fitting is compact and durable. Licensed electricians install this coupling during conduit rough-in work on commercial and industrial job sites where code-compliant, secure conduit connections are required.

This coupling is used in conduit systems requiring concrete-tight fittings, typically in commercial, industrial, and institutional electrical installations. The compression connection type is well suited for applications where a secure mechanical bond is needed without the use of set screws. It is appropriate for both above-grade and embedded conduit routing where the conduit type is RMC or IMC at the 1/2 inch trade size. Non-insulated construction keeps the profile minimal while maintaining the mechanical integrity of the conduit run.

Key Features

• Compression connection provides a concrete-tight fit for demanding installation environments
• Malleable iron construction offers strength and resistance to mechanical stress
• Compatible with 1/2 inch trade size rigid metal conduit and IMC
• Non-insulated design for standard conduit system applications
• Concrete-tight rating supports use in poured or embedded conduit installations

Compatibility

Designed as an OEM-style fitting for use with 1/2 inch trade size rigid metal conduit (RMC) and intermediate metal conduit (IMC) systems.

Installation Notes

Installation should be performed by a licensed electrician in accordance with NEC requirements for conduit fittings and mechanical connections. De-energize the circuit and confirm lockout/tagout procedures are in place before working on any conduit system. Compression fittings require proper seating of the conduit end into the coupling body before tightening the compression nut to ensure a secure, concrete-tight connection. Inspect conduit ends for burrs or damage before assembly to avoid compromising the fitting seal.