ABB B120R Carlon Single Gang Old Work Mounting Box

The ABB B120R Carlon Single Gang Old Work Mounting Box simplifies retrofit installations by delivering a fast, reliable enclosure for switches, outlets and low-voltage devices used in security, surveillance and monitoring systems. This single-gang mounting box is molded from durable PVC and is UL-listed, offering a noncorrosive, nonconductive solution that reduces grounding issues and improves installation safety. At 3.6" depth and a compact 4.1" x 2.3" footprint, the B120R accommodates nonmetallic sheathed cable per NEC Article 370 and provides one of the largest wire-fill capacities in its class—minimizing rework and saving time on site. Molded-in flanges and clamps secure the box in old-work cutouts without additional hardware, while the lightweight, nestable design reduces shipping and storage costs. Ideal for electrical contractors, low-voltage integrators, and security installers adding cameras, access control, or network outlets, the ABB Carlon B120R combines practical design with code-compliant performance. Order the B120R to streamline retrofit and new-work installations for security, surveillance, or network cabling projects.

• Speeds installation with molded-in clamps and lightweight PVC construction for faster, lower-cost installs
• Secure, nonconductive housing reduces grounding concerns for low-voltage security and surveillance devices
• Designed for retrofit (old-work) jobs with molded flanges that clamp into walls for a reliable, flush mount
• UL-listed and sized for the largest wire fill capacity in its class to simplify cable management
• Nestable design saves storage space on the jobsite and supports efficient material handling