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Galvanized steel square electrical box with bracket and knockouts

Hubbell Incorporated

Hubbell Incorporated RACO 235 30.3 cu in 2-Gang Square Electrical Box

SKU CH-M8DJ-9BE1A

A 30.3 cu in welded square box with nine 1/2 in. knockouts, five TKO knockouts, TS bracket and assembled 8-32 cover screws for 600V circuits

  • TypeElectrical Boxes & Covers
  • 3 cu in capacity fits more wiring
  • Pre-galvanized steel resists corrosion in damp locations
  • Nine 1/2 in. knockouts plus five TKO's speed cable entry
  • TS bracket enables flush mounting on studs
  • Assembled 8-32 cover screws save installation time

RACO 235 30.3 cu in Electrical Box

The RACO 235 is a 4-inch square electrical box with a 30.3 cubic inch capacity designed to enclose wiring, switches, receptacles or lighting fixtures. It is built for residential or commercial installations requiring a two-gang configuration. The welded construction provides a rigid enclosure for standard electrical work.

Galvanized Steel Build with TS Bracket

Constructed from 1/16 inch pre-galvanized steel, the box resists corrosion in typical indoor environments. It features nine 1/2 inch knockouts and five TKO knockouts for flexible conduit entry. A TS bracket allows direct mounting to wood or metal studs. Cover mounting screws are assembled for immediate installation.

600V Rating Without Bonding Jumper

The steel enclosure is suitable for use without a bonding jumper in circuits up to 600V, simplifying grounding requirements. The welded seams maintain structural integrity during installation and long-term use. The pre-galvanized finish protects the metal surface throughout the service life of the box.

Highlights

  • 3 cu in capacity fits more wiring
  • Pre-galvanized steel resists corrosion in damp locations
  • Nine 1/2 in. knockouts plus five TKO's speed cable entry
  • TS bracket enables flush mounting on studs
  • Assembled 8-32 cover screws save installation time

Specifications

BrandRACO
TypeElectrical Boxes & Covers

Questions about this item

What voltage rating does the 600V listing on this RACO 235 box actually cap in practice?

The box is rated for circuits up to 600V and is suitable for use without a bonding jumper at that voltage.

What physical opening does the TS bracket on this 2-gang square box require for mounting?

The TS bracket is designed for flush mounting to a stud or joist; the box itself measures 4 in. square and 2-1/8 in. deep.

How is the RACO 235 installed, and which step do installers most often get wrong?

Mount the box via the TS bracket to the framing, knock out only the 1/2 in. KO or TKO entries you need, then fasten the cover with the assembled 8-32 screws; a common error is removing more knockouts than required, which weakens the box and violates fill calculations.

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