You may also like
RACO 189SM 4 in. Welded Square Steel Box
The RACO 189SM is a 4 in. welded square steel outlet box, 1-1/2 in. deep, engineered for conduit wiring systems. It features ten 1/2 in. knockouts and six 1/2 - 3/4 in. combination (TKO) knockouts for flexible conduit entry, a raised ground provision, and a factory-installed 10 inch #12 stranded copper grounding pigtail. This UL Listed box is built for reliable, code-compliant electrical installations in commercial and industrial applications.
Key Features
- Trade Size: 4 in. square box, 1-1/2 in. deep, sized for standard conduit wiring systems.
- Durable Construction: Welded steel body forms a rigid, one-piece enclosure built to withstand jobsite handling and long-term service.
- Knockouts: Ten 1/2 in. and six 1/2 - 3/4 in. combination (TKO) knockouts allow flexible conduit sizing and multiple entry points.
- Raised Ground: Raised ground stamping provides a dedicated location for secure equipment grounding connections.
- Grounding Pigtail: Pre-installed 10 inch #12 stranded copper pigtail simplifies grounding termination in the field.
- No Bracket: Ships without a mounting bracket for direct, conduit-supported installation in Conduit wiring systems.
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: Welded
- Bracket Type: No Bracket
- Wiring System: Conduit
- Knockouts: 1/2 in;1/2 - 3/4 in Combination (TKO)
- Certified Listed: UL Listed
Typical Applications
- Commercial and Industrial Electrical Installations
- Conduit and Raceway Systems
- Device and Outlet Box for Switches and Receptacles
- New Construction and Renovation Wiring
Why RACO?
RACO steel boxes are welded for a rugged, one-piece enclosure and include practical, field-ready details like raised ground stamping and a pre-installed copper pigtail to speed up grounding terminations. Backed by a UL Listing, the RACO 189SM delivers dependable, code-compliant performance for conduit-fed electrical installations in both new construction and renovation projects.
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:
- Welded
- Bracket Type:
- No Bracket
- Wiring System:
- Conduit
- Knockouts:
- 1/2 in;1/2 - 3/4 in Combination (TKO)
- Certified Listed:
- UL Listed