Cooper Crouse-hinds TP831 Square Outlet Box 4x4x2-1/8 in Steel

Product Description

The COOPER CROUSE-HINDS TP831 is a square steel electrical outlet box designed for single-gang wiring applications in commercial and residential electrical installations. Measuring 4 inches high by 4 inches wide by 2-1/8 inches deep, it provides a standard 4-inch square footprint that fits common rough-in configurations. The box features 17 knockouts sized at 1/2 inch and 3/4 inch trade sizes, giving installers flexible conduit entry options. Constructed from steel, it delivers the durability and rigidity required for permanent junction and device mounting applications. Licensed electricians are the primary installers of this component.

This outlet box is suited for single-gang device mounting in standard electrical rough-in work. Its 4-inch square format is widely used for receptacles, switches, and junction points in both new construction and retrofit wiring projects. The air plenum mount type makes it appropriate for installations within plenum-rated ceiling and air-handling spaces where applicable code requirements must be observed. The non-weather-resistant rating limits use to dry or protected interior locations.

Key Features

• 4 inches x 4 inches square footprint fits standard rough-in layouts
• 2-1/8 inches depth provides adequate wire capacity for single-gang wiring
• 17 knockouts in 1/2 inch and 3/4 inch trade sizes for flexible conduit routing
• Steel construction for rigid, durable device and junction mounting
• Air plenum mount type supports plenum-space installations
• Non-weather-resistant rating - suitable for dry, protected interior environments

Compatibility

Designed as an OEM-style replacement and standard-fit outlet box for single-gang electrical device installations using 4-inch square steel boxes in residential and commercial wiring systems.

Installation Notes

Installation of this outlet box 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 at the work location before beginning installation. This box is rated non-weather-resistant and must not be used in wet or outdoor exposed locations. When installing in plenum-rated spaces, confirm that all associated wiring and fittings also meet the applicable plenum requirements.