Abb 231 Outlet Box 4 Inch Square 3/4 Inch Knockouts

Product Description

The ABB 231 is a 4-inch square outlet box designed for use in commercial and residential electrical rough-in applications. It provides a sturdy enclosure for wiring connections, device mounting, and junction points within wall, ceiling, and floor installations. The box features 3/4-inch knockouts to accommodate standard conduit fittings, making it compatible with common EMT and rigid conduit runs. Licensed electricians and electrical contractors install this type of box as part of branch circuit wiring systems governed by the National Electrical Code. At 0.894 pounds, it is lightweight enough for single-hand positioning during overhead or wall installations.

This outlet box is suited for standard electrical rough-in work in residential and light commercial construction. It is used in new construction and retrofit projects where a 4-inch square box is specified for device mounting, wire splicing, or junction purposes. The 3/4-inch knockouts allow direct connection to conduit systems, making it appropriate for conduit-fed wiring layouts in commercial settings where exposed or protected conduit runs are common.

Key Features

• 4-inch square form factor suits standard residential and commercial rough-in specifications
• 3/4-inch knockouts accommodate common EMT and rigid conduit fittings
• Lightweight construction at 0.894 pounds for easier single-hand installation
• Suitable for junction, splicing, and device-mounting applications

Compatibility

Designed as an OEM-style replacement and standard fitment for 4-inch square outlet box applications in conduit-fed electrical systems.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code and applicable local codes. De-energize the circuit at the panel and verify absence of voltage before making any wiring connections. Secure the box to framing or structural supports as required by code before pulling conductors. Use appropriate conduit connectors sized for the 3/4-inch knockouts to maintain a continuous equipment grounding path.

Technical Specifications

• Box Shape: Square
• Box Size: 4 inches
• Knockout Size: 3/4 inches
• Weight: 0.894 pounds

Standard Information

• Brand: ABB
• Manufacturer Part Number: 231