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RACO 201 4 in. Square Steel Extension Ring, Drawn, 1-1/2 in. Deep
The RACO 201 4 in. Square Steel Extension Ring, Drawn, 1-1/2 in. Deep is a drawn steel extension ring engineered to add depth and wiring capacity to existing 4 in. square conduit boxes without requiring a full box replacement. Built for conduit wiring systems, this UL Listed extension ring features twelve 1/2 in. knockouts (KO's) for flexible conduit entry from multiple sides, and its no-bracket design allows it to mount directly onto an existing 4 in. square box. The one-piece drawn steel body provides the strength and durability required for commercial and industrial electrical rough-in work.
Key Features
- Trade Size: 4 in. square extension ring sized to match standard 4 in. square conduit boxes.
- Depth: 1-1/2 in. deep, adding usable wiring volume without swapping out the existing box.
- Durable Construction: Drawn steel, one-piece body for strength and long-term durability in conduit installations.
- Twelve 1/2 in. Knockouts: Twelve 1/2 in. KO's provide multiple, flexible conduit entry points around the ring.
- Wiring System: Designed for use in conduit wiring systems.
- Bracket Type: No Bracket, allowing direct mounting to an existing 4 in. square box.
- Shape: Square profile matches standard 4 in. square box footprints for a clean fit.
Certifications & Compliance
- UL Listed
Technical Specifications
- Product Type: Steel Box
- Product Size: 4 in
- Product Depth: 1.5 in
- Product Shape: Square
- Drawn or Welded: Drawn
- Bracket Type: No Bracket
- Wiring System: Conduit
- Knockouts: 1/2 in
- Certified Listed: UL Listed
Typical Applications
- Extending the Depth of Existing 4 in. Square Conduit Boxes
- Commercial and Industrial Conduit Wiring Systems
- Remodel and Retrofit Electrical Installations
- Junction and Outlet Box Depth Extensions
- New Construction Rough-In Electrical Work
Why RACO?
RACO builds the 201 Extension Ring from drawn steel for a durable, one-piece construction that holds up to the demands of conduit rough-in work. With twelve 1/2 in. knockouts for flexible conduit routing and UL Listed certification, this extension ring gives electrical professionals a code-compliant, reliable way to extend an existing 4 in. square box without a full replacement.
Manufacturer Resources
Spec Sheet
Product Specs
- list_batch:
- RACO-20260916
- Product Type:
- Steel Box
- Product Size:
- 4 in
- Product Depth:
- 1.5 in
- Product Shape:
- Square
- Drawn or Welded:
- Drawn
- Bracket Type:
- No Bracket
- Wiring System:
- Conduit
- Knockouts:
- 1/2 in
- Certified Listed:
- UL Listed