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Square galvanized steel electrical box with multiple knockouts and raised ground

Hubbell Incorporated

Hubbell Incorporated RACO 189 Electrical Box Square 2 Gangs Galvanized Zinc 1-1/2 in D 4 in W

SKU CH-DXYT-V2X7N

A 4-inch square welded box with 21.0 cu. in. capacity, ten 1/2 in. and six TKO knockouts, raised ground and UL listing for switches or fixtures

  • Product typeElectrical Boxes & Covers
  • Square box holds 21.0 cu. in. for wiring capacity
  • Ten 1/2 in. knockouts plus six TKO options give routing flexibility
  • Welded pre-galvanized steel body resists corrosion over time
  • Raised ground screw speeds up secure grounding connections
  • UL Listed and rated for two-hour fire-rated wall assemblies

Square Two-Gang Box

The RACO 189 is a 4 in. square welded box built to enclose wiring, switches, receptacles or lighting fixtures. It is made from 1/16 in. pre-galvanized steel and carries a UL Listing. The 21.0 cu. in. capacity suits two-gang residential or light commercial rough-ins.

Knockout and Mounting Limits

Ten 1/2 in. knockouts and six TKO knockouts provide entry options, but the TKO design only works with matching TKO fittings. Cover mounting uses assembled 8-32 screws, so covers must accept that thread. The box is acceptable in 2-hour fire rated walls.

Build Quality and Daily Use

Welded construction keeps the enclosure rigid during installation and over time. Pre-galvanized steel resists corrosion in dry indoor locations. Combination screw heads allow quick driving with common bits. The raised ground simplifies grounding connections without extra hardware.

How it compares

Measured against everything we stock in Electrical Enclosures & Cabinets, at today’s prices. Recalculated every night.

Price $3.99
Cheaper than about 94% of the 1,411 comparable items (median $39.99).

Specifications

Product
Brand nameRACO
Product typeElectrical Boxes & Covers

Questions about this item

Which RACO 189 box should I choose for a standard two-gang installation?

The RACO 189 is a single 4-inch square, two-gang box with 1-1/2 inch depth and 21.0 cu. in. capacity, so one unit covers a typical two-gang wiring job.

What does the 21.0 cu. in. capacity mean when I am wiring the box?

The 21.0 cu. in. volume limits the total conductor fill; count each hot, neutral and ground wire plus device yokes to stay within the code-allowed fill for this depth.

How do the 1/2 in. and TKO knockouts affect the conduit sizes I can use?

Ten 1/2 in. knockouts and six TKO knockouts accept 1/2 in. conduit directly, while TKO openings can be removed for larger conduit sizes up to the box wall limits.

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