Thomas Betts 52171-1/2+3/4-E Square Junction Box 2 Gang

Product Description

The THOMAS BETTS 52171-1/2+3/4-E is a square steel electrical junction box designed for residential and commercial wiring applications. Measuring 4 inches high by 4 inches wide by 2-1/8 inches deep, this 2-gang box provides ample interior volume for wire terminations, splices, and device mounting. It ships with 17 knockouts sized for 1/2-inch and 3/4-inch conduit trade sizes, giving installers flexible conduit entry options. The steel body is rated non-weather-resistant and is intended for dry or protected indoor locations. Licensed electricians are the primary installers for this type of enclosure.

This junction box is suited for branch-circuit wiring in walls, ceilings, or exposed conduit runs in residential, light commercial, and industrial interiors. The 2-gang configuration supports side-by-side device mounting or provides extra cubic-inch capacity for larger wire bundles and splices. The knockout layout accommodates common EMT, rigid metal, or flexible metal conduit fittings in 1/2-inch and 3/4-inch sizes, making it compatible with the most widely used conduit systems in standard electrical installations.

Key Features

• Steel construction provides durability and meets grounding continuity requirements
• 4 x 4 x 2-1/8 inch square body offers generous cubic-inch capacity for splices and terminations
• 17 knockouts in 1/2-inch and 3/4-inch trade sizes for conduit entry flexibility
• 2-gang design supports dual-device mounting or increased wire fill
• Non-weather-resistant rating — intended for dry, protected indoor locations
• UL listed under File E2969

Compatibility

Designed as an OEM-style replacement and standard-fit option for 4-inch square 2-gang electrical box applications using 1/2-inch and 3/4-inch conduit fittings in residential and commercial wiring systems.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize the circuit at the panel and verify with a voltage tester before working inside the box. Knockouts should be removed cleanly with a screwdriver and hammer or knockout punch to avoid deforming the box. Do not use this enclosure in outdoor, wet, or damp locations, as it is rated non-weather-resistant.