Abb 52151 Cvx Square Electrical Box 21 Cu in 4 Inch

Product Description

The ABB INSTALLATION PRODUCTS 52151 cvx is a pre-galvanized steel square electrical outlet box designed for use in residential and commercial wiring installations. Measuring 4 inches square and 1.5 inches deep with a 21 cubic inch interior volume, this box provides adequate capacity for device and junction applications. It ships with a non-metallic cable clamp (C-3) and a CV bracket pre-installed. The box features 1/2 inch and 3/4 inch eccentric knockouts, giving electricians multiple entry options for conduit and cable runs. Marketed under the Steel City brand name, this unit is UL listed under E2969 and carries a silver finish from the pre-galvanized steel construction. Licensed electricians handle installation in both new and retrofit wiring work.

This box is suited for wall and ceiling rough-in work where armored cable (AC) or metal clad (MC) cable is the wiring method. The included CV bracket supports plaster ring or cover attachment, and the C-3 non-metallic cable clamp secures armored or MC cable entries directly at the box. With 11 total knockouts, the box accommodates multi-circuit junction scenarios or single-device outlet configurations in standard framed or masonry construction. It is appropriate for use in residential, light commercial, and industrial settings where a 4-inch square steel box is specified.

Key Features

• 21 cubic inch interior volume meets NEC fill calculation requirements for device and junction use
• 1/2 inch and 3/4 inch eccentric knockouts allow flexible conduit and cable entry routing
• Pre-galvanized steel construction with silver finish resists corrosion in typical indoor environments
• Includes non-metallic C-3 cable clamp for armored and metal clad cable termination
• CV bracket included for plaster ring or flat cover attachment
• UL listed under standard E2969 for code-compliant installations

Compatibility

Designed as an OEM-style replacement and new-construction square outlet box for use with armored cable and metal clad cable wiring systems in standard 4-inch square box applications.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize all circuits at the panel before mounting the box or making any wiring connections. Secure the box to framing or structure using appropriate fasteners before pulling cable; do not rely on the bracket alone for structural support. Verify cubic inch fill calculations per NEC Article 314 before seating conductors and devices.