We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
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

  • 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.

Highlights

  • 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

Specifications

BrandRACO
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.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.