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By Raco 

Catalog ID: 255

By Raco
Catalog ID:  255
3-3/4 in. Square Box, Large capacity, Welded, 3-1/2 in. Deep, Fourteen 1/2 and 3/4 in. Concentric KO's, FM Bracket.
  • Welded steel construction with "FM" bracket that mounts on flat side of stud
  • 3-3/4 in. square x 3-1/2 in. deep
  • 3-3/4 in. opening in walls allows for margin of error when using a 4 in. square cover
  • Accepts 4 in. square covers and mud rings
  • Large capacity design accommodates oversized devices
  • Supplied with fourteen 1/2-3/4 in. Concentric KO's and one 1/2 in. KO
  • 40.5 cu. in. capacity
  • Acceptable for use in 2-hour fire rated walls

Product Details


Bracket Setback 1.25
Bracket Type FM, for Metal or Wood Studs
Color Gray
Drawn or Welded Welded
Fire Resistance Yes
Knockouts 1/2 in;1/2 - 3/4 in Concentric
Material Steel
Number of Gang(s) 2-Gang
  • Box
  • Large Capacity
UPC 050169002551
Wiring System Conduit


Actual Depth 3.5 in
Cubic Capacity 45.0 cu.in
Depth 3.5 in
Height 7.625 in
Raised Ground No
Weight 1.426 lb
Width 4.125 in

Certifications and Compliance

Certified Listed UL Listed


Carton Quantity 10
Packaging Type No Packaging
Pallet Quantity 600

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