Southwire 52151-SDR-UPC Steel Square Electrical Box 4x4

Product Description

The SOUTHWIRE 52151-SDR-UPC is a drawn steel square electrical box designed to distribute power across multiple electrical devices where conductor runs branch into two or more directions. Constructed from drawn steel, it offers solid mechanical protection for wiring connections in standard residential and light commercial installations. Combination knockouts provide flexibility when routing conduit or cable from multiple entry points. The box is sized at 4 inches x 4 inches and is compliant with UL and RoHS standards, making it suitable for installations where listed components are required by code.

This square electrical box is used in residential and light commercial wiring applications where a junction or device box is needed to consolidate or redirect multiple conductor runs. It is a common fit for wall, ceiling, or structural framing installations where the electrician needs a code-compliant metal box with knockout options on multiple sides. The screw-on design works with combination Phillips and slotted screw heads, keeping installation straightforward with standard tools.

Key Features

• Drawn steel construction for durable mechanical protection in rough-in applications
• 4 inches x 4 inches square footprint sized for standard square-box cover plates and mud rings
• Combination knockouts allow entry from multiple directions for flexible conduit or cable routing
• Compatible with combination Phillips and slotted screw heads for easy installation
• UL listed and RoHS compliant for use in code-required installations

Compatibility

Designed as an OEM-style replacement or new-installation square electrical box for use with standard 4-inch square cover plates, mud rings, and device rings in residential and light 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 at the work area before beginning any wiring work. Secure the box to framing or structural members using appropriate fasteners before pulling conductors. Ensure all unused knockouts remain intact and that knockouts are cleanly removed only where conduit or cable connectors will be installed.

Technical Specifications

• Box Size: 4 inches x 4 inches
• Material: Drawn Steel
• Weight: 0.674 pounds
• Certifications: UL Listed, RoHS Compliant
• Unit of Measure: Each

Standard Information

• Brand: SOUTHWIRE
• Manufacturer Part Number: 52151-SDR-UPC