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By Raco 

Catalog ID: 189HS

By Raco
Catalog ID:  189HS
4 in. Square Box, Welded, 1-1/2 in. Deep with Eight 1/2 in. KO's & Five TKO's, Raised Ground, 10 in. #12 Solid Copper Pigtail, UBS, HM Bracket

Designed to enclose electrical wiring, switches, receptacles or lighting fixtures. Constructed from 1/16 in. pre-galvanized steel. 8-32 cover mounting screws assembled.

  • TKO knockout design provides installation flexibilty
  • UBS integrated support provides the bracing on back of box for wall cavities between 2-1/2 in - 6 in. thickness, H/M
  • Welded construction
  • Eight 1/2 in. knockouts and five TKO knockouts
  • UL Listed
  • 21.0 cu. in. capacity
  • Raised ground, 10 in. #12 Stranded Copper pigtail
  • Acceptable in 2-hour fire rated walls

Product Details


Bracket Setback 0.375
Bracket Type H, for Metal or Wood Studs
Drawn or Welded Welded
Fire Resistance Yes
Knockouts 1/2 in;1/2 - 3/4 in Combination (TKO)
Material Steel
Type Box
UPC 050169500378
Wiring System Conduit


Actual Depth 2.063 in
Cubic Capacity 21.0 cu.in
Depth 1.5 in
Height 4 in
Raised Ground Yes
Weight 0.84 lb
Width 4.913 in

Certifications and Compliance

Certified Listed UL Listed


Carton Quantity 20
Packaging Type No Packaging
Pallet Quantity 1600

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