RACO 665 Handy Extension Ring, Drawn Steel, 4 in. x 2 in., Eight 1/2 in. KO's

RACO 665 Handy Extension Ring, Drawn Steel, 4 in. x 2 in., Eight 1/2 in. KO's

The RACO 665 Handy Extension Ring is a drawn steel box extension built to add usable wiring volume to an existing handy/utility box installation. Sized 4 in. x 2 in. with a 1-7/8 in. deep body, it provides eight 1/2 in. knockouts for flexible conduit entry and ships with no bracket for direct box-to-box mounting. The 665 is cULus Listed, making it a dependable choice for commercial and residential electrical rough-in and renovation work where extra box depth or wiring capacity is required.

Key Features

• Trade Size: 4 in. x 2 in. handy box footprint designed to extend and align with standard handy boxes.
• Durable Construction: One-piece drawn steel body for a seamless, rugged extension ring with no weld seams.
• Extension Depth: 1-7/8 in. (1.875 in.) deep, adding significant usable interior volume for additional wiring or devices.
• Knockouts: Eight 1/2 in. KO's positioned around the ring for flexible conduit or connector entry from multiple directions.
• Bracket Type: No Bracket configuration allows the ring to mount flush and stack directly onto an existing box.
• Listing: cULus Listed for use in compliant commercial and residential electrical installations.

Certifications & Compliance

• cULus Listed

Technical Specifications

• Product Type: Steel Boxes and Covers
• Product Depth: 1.875 in
• Drawn or Welded: Drawn
• Bracket Type: No Bracket
• Certified Listed: cULus Listed

Typical Applications

• Extending Existing Handy or Utility Boxes
• Commercial and Residential Wiring Installations
• Surface-Mounted Device Box Extensions
• Renovation and Remodel Wiring Projects
• Adding Wiring Volume for Additional Conductors or Devices

Why RACO?

RACO builds the 665 Handy Extension Ring from one-piece drawn steel for a strong, seamless enclosure that stands up to the demands of everyday electrical rough-in work. With eight 1/2 in. knockouts, a 1-7/8 in. deep body, and cULus Listing, this extension ring delivers the code-compliant reliability electricians expect when adding capacity to existing box installations.