Abb Installation Products B520A-UPC New Work Ceiling Box

Product Description

The ABB INSTALLATION PRODUCTS B520A-UPC is a new work ceiling box designed for electrical rough-in installations in residential and light commercial construction. Made from blue PVC, this box measures 4 inches in diameter and 2.25 inches deep, providing 20 cubic inches of capacity. It features captive nails for fast, secure mounting to ceiling joists and six integral clamps for conductor management. The box is rated for light fixture and junction box applications only and is not approved for ceiling fan support. Licensed electricians install this box during the framing stage before drywall is applied.

This ceiling box is suited for new construction ceiling installations where the framing is exposed. The 20 cubic inch interior supports proper conductor fill calculations per NEC requirements. Fixture spacing accommodates openings from 2.75 inches to 3.5 inches, making it compatible with a standard range of canopy-mount light fixtures. The 3/0 to 4/0 combination knockout configuration provides flexibility for various conduit and cable entry needs. This box is not intended for use with ceiling fans, which require a fan-rated support box.

Key Features

• 20 cubic inch capacity for NEC conductor fill compliance
• Blue PVC construction for corrosion resistance in standard ceiling applications
• Captive nails for direct attachment to ceiling joists during new construction
• Six integral clamps for secure conductor retention inside the box
• Fixture spacing supports 2.75 inch and 3.5 inch canopy mounts
• 3/0 to 4/0 combination knockout configuration for cable and conduit entry flexibility

Compatibility

Rated for light fixtures and junction box applications. Not for use with ceiling fans. Fixture spacing accommodates 2.75 inch and 3.5 inch mounting patterns.

Installation Notes

This box is installed by licensed electricians during the rough-in phase of new construction before drywall is hung. Ensure all power circuits are de-energized at the panel before making any wiring connections. Follow NEC Article 314 for box fill calculations and support requirements. Do not use this box to support ceiling fans, as fan installations require a listed fan-rated box assembly.

Technical Specifications

• Capacity: 20 cubic inches
• Diameter: 4 inches
• Depth: 2.25 inches
• Material: PVC
• Color: Blue
• Knockout Configuration: 3/0 to 4/0 Combination
• Integral Clamps: 6
• Fixture Spacing: 2.75 inches and 3.5 inches
• Weight: 17 pounds
• Unit of Measure: EA
• Package Quantity: 75

Standard Information

• Brand: ABB INSTALLATION PRODUCTS
• Manufacturer Part Number: B520A-UPC