Abb Installation Products B618RR Ceiling Round Old Work Box

Product Description

The ABB INSTALLATION PRODUCTS B618RR is a round ceiling old work electrical box designed for retrofit and remodel installations where no attic or wall access is available. Built from PVC, this box measures 4 inches in diameter and 2-3/4 inches deep, providing an 18 cubic inch capacity. It features three swing-out retainer arms that anchor the box securely to drywall or plaster ceilings from below, eliminating the need to open the ceiling surface. Four integral cable clamps are included for securing non-metallic sheathed cable. This box is rated for light fixture mounting only and is not approved for ceiling fan installation.

The B618RR is suited for residential remodel and renovation work where an existing ceiling box must be replaced or a new ceiling light location is being added without structural access. It installs entirely from below the ceiling surface, making it practical for finished living spaces. The box is sold individually and is appropriate for use with standard ceiling-mount light fixtures in dry interior locations.

Key Features

• 18 cubic inch capacity meets NEC fill requirements for standard light fixture wiring
• 4 inches diameter by 2-3/4 inches deep PVC construction
• Three swing-out retainer arms secure box to ceiling material without attic access
• Four integral cable clamps hold NM cable in place without separate connectors
• Rated for light fixture use only — not approved for ceiling fan installation
• Old work design installs from below finished ceiling surfaces

Compatibility

Designed as an OEM-style replacement or new-work solution for round ceiling light fixture boxes in residential remodel applications where no overhead access is available.

Installation Notes

Installation is performed by a licensed electrician. De-energize the circuit at the breaker panel and verify with a non-contact voltage tester before beginning work. The swing-out retainer arms must be fully engaged against the back of the ceiling surface to ensure a secure mount. This box is not rated for ceiling fan loads — do not install a fan on this box under any circumstances, as it does not meet NEC requirements for fan-rated support.

Technical Specifications

• Box Shape: Round
• Box Type: Old Work (Retrofit)
• Capacity: 18 cubic inches
• Diameter: 4 inches
• Depth: 2-3/4 inches
• Material: PVC
• Retainer Arms: 3 swing-out
• Integral Clamps: 4
• Weight: 18 pounds (per package of 75 units)
• Application: Light fixture only — not for ceiling fans

Standard Information

• Brand: ABB INSTALLATION PRODUCTS
• Manufacturer Part Number: B618RR