FS & FD Series Single Gang Device Boxes


Cast device boxes are installed in conduit and cable systems to:

  • Accommodate wiring devices
  • Act as pull boxes for conductors in a conduit system
  • Provide openings to make splices and taps in conductors
  • Provide access to conductors for maintenance and future system changes
Trade Sizes 1/2" to 1"
Box Depth 1-11/16" (FS); 2-1/2" (FD)
Materials Feraloy iron alloy or copper-free aluminum


  • Internal green ground screw standard on boxes
  • Suitable for use in wet locations when used with gasketed covers
  • Mounting lugs standard on most boxes
  • Tapered threaded hubs (NPT) with integral bushing
  • Available for surface mounting (with mounting lugs) or flush mounting (without mounting lugs) as listed
  • Available as shallow (FS) or deep (FD) configuration; use FD if device to be enclosed exceeds 1 5/8" in depth
  • Ample wiring room provided in either FS or FD configuration
  • Wide selection of surface or flush covers available in three materials (sheet steel, Feraloy, aluminum)
  • Covers for flush mounting extend to conceal the rough plaster line
  • Available in single-gang and multi-gang configurations with hubs, and as blank bodies for drilled and tapped openings