RACO 258 4-11/16 in. Square Steel Box, Welded, 2-1/8 in. Deep, Raised Ground

RACO 258 4-11/16 in. Square Steel Box, Welded, 2-1/8 in. Deep, Raised Ground

The RACO 258 is a 4-11/16 in. welded square steel box built for conduit-fed commercial and industrial electrical wiring systems. Measuring 2-1/8 in. deep, this steel enclosure features a raised ground for dependable equipment grounding and is UL Listed for code-compliant installation. Its welded-seam construction and mix of one 1/2 in., eight 1 in., and three 1/2 - 3/4 in. combination TKO knockouts make the RACO 258 a versatile enclosure for splices, terminations, and device mounting in conduit raceway systems.

Key Features

• Trade Size: 4-11/16 in. square footprint sized to accept standard covers, rings, and device mounting hardware.
• Depth: 2-1/8 in. deep interior provides ample volume for conductors, splices, and devices.
• Durable Construction: Welded steel body forms a rigid, seam-welded enclosure built to withstand demanding job-site conditions.
• Conduit Wiring System: Designed for conduit-fed installations, integrating with standard rigid, IMC, and EMT raceway runs.
• Knockouts: Includes one 1/2 in., eight 1 in., and three 1/2 - 3/4 in. combination TKO knockouts for flexible conduit entry sizing.
• Raised Ground: Integrated raised ground feature simplifies equipment grounding conductor termination and bonding.
• No Bracket: Supplied without a mounting bracket for direct, conduit-supported installation.

Certifications & Compliance

• UL Listed

Technical Specifications

• Product Type: Steel Box
• Product Size: 4-11/16 in
• Product Depth: 2.125 in
• Product Shape: Square
• Drawn or Welded: Welded
• Bracket Type: No Bracket
• Wiring System: Conduit
• Knockouts: 1/2 in;1 in;1/2 - 3/4 in Combination (TKO)
• Certified Listed: UL Listed

Typical Applications

• Conduit-Fed Electrical Wiring Systems
• Commercial and Industrial Construction
• Junction and Pull Box Installations
• Device and Switch Mounting Enclosures
• New Construction and Renovation Projects

Why RACO?

RACO steel boxes are engineered for electricians who need dependable, code-compliant enclosures on every job. The welded-seam construction and raised ground design of the RACO 258 deliver a rugged, UL Listed solution for conduit wiring systems, while the combination of 1/2 in., 1 in., and TKO knockouts offers flexibility across a range of conduit sizes and installation scenarios.