Raco 262-RAC 4-11/16 in Square Extension Ring

Product Description

The RACO 262-RAC is a 4-11/16 inch square extension ring designed to increase the cubic capacity of an existing square electrical box. Constructed from pre-galvanized steel using a drawn process, this extension ring adds 43.0 cubic inches of wiring space, helping installers meet NEC fill requirements in junction, device, or pull box applications. It ships without a mounting bracket and is intended for conduit wiring systems, making it a standard choice for commercial and industrial rough-in work performed by licensed electricians.

This extension ring is used in commercial, industrial, and multi-family residential electrical installations where additional wire fill capacity is needed inside a 4-11/16 inch square box assembly. It is a common component in conduit-based wiring systems, particularly in concrete, masonry, or steel-stud construction where larger boxes are required to handle multiple conductors or devices. Electricians use it to bring existing box installations into compliance when conductors, devices, or splices push the fill count beyond the capacity of a single-gang box.

Key Features

• 43.0 cubic inch capacity increases available wire fill in 4-11/16 inch square box assemblies
• Pre-galvanized steel construction provides corrosion resistance in standard indoor and covered outdoor environments
• Drawn construction delivers consistent wall thickness and dimensional accuracy
• 8 knockouts sized at 1/2 inch and 4 knockouts sized at 3/4 inch accommodate a range of conduit trade sizes
• UL listed for use in electrical box assemblies per applicable wiring standards
• No bracket included, suited for surface and flush conduit system installations

Compatibility

Designed as an OEM-style extension ring for use with 4-11/16 inch square electrical boxes in conduit wiring systems.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the NEC and any applicable local amendments. De-energize all circuits and verify with a meter before working inside the box assembly. Knockouts should be removed only as needed and properly bushed or fitted with connectors to protect conductor insulation. Do not exceed the cubic inch fill capacity as calculated per NEC Article 314.