Thomas Betts FD3-TB 1 Gang Electrical Device Box

Product Description

The THOMAS BETTS FD3-TB is a single-gang electrical device box designed for use in standard residential and commercial electrical installations. Constructed from iron with a zinc-plated finish, this rectangular device box measures 2-3/4 inches in overall width and houses one knockout at a 1-inch trade size. It is rated non-weather-resistant and is intended for interior or protected-location applications. Licensed electricians and qualified electrical contractors install this box during rough-in or device replacement work where a durable, code-compliant enclosure is required.

This device box is suited for single-gang wiring device installations in walls or ceilings where an iron enclosure is specified. Its zinc-plated iron body provides structural rigidity appropriate for commercial and industrial environments where plastic boxes are not acceptable. The single 1-inch knockout accommodates standard conduit trade sizes used in EMT or rigid conduit runs common in commercial electrical systems.

Key Features

• Iron construction with zinc-plated finish for durability in demanding environments
• Single-gang configuration accommodates one wiring device
• One 1-inch trade-size knockout for conduit entry
• Rectangular profile for straightforward rough-in installation
• CSA Certified and listed under UL File E2969
• Non-weather-resistant rating — suited for interior or dry protected locations

Compatibility

Designed as an OEM-style replacement or new-installation device box compatible with standard single-gang wiring devices and covers used in residential and commercial electrical 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 and verify zero voltage with a meter before beginning any work in or around the box. This box is rated non-weather-resistant and must not be used in wet or outdoor locations without appropriate weatherproof covers and fittings. Secure conduit connections at the knockout using listed fittings sized for 1-inch trade conduit.