Steel City 72151 1/2 3/4 E Outlet Boxes

The 72151 1/2 3/4 E gives you 29.5 cubic inches of volume, which is the usable figure for your NEC box fill calculation. Deduct for devices, clamps, and grounds as you normally would, then divide the remainder by the volume allowance for the conductor size you're running. It's one of the larger single-gang-depth steel boxes for that reason, so it handles multi-circuit pull points and several device conductors where a 4-inch square would be tight.

No. The 72151 1/2 3/4 E is a standard steel outlet box for ordinary interior locations. For a Class I or Class II classified area you need an explosionproof malleable iron conduit outlet box, such as the Appleton GRJ Series, the universal Appleton GRJS Series, or the round Appleton GRT75. Substituting a sheet steel box into a classified area will fail inspection.

The Steel City 72151 1/2 3/4 E is a steel outlet box that is not weatherproof, so for an exposed exterior location look at the Mulberry Royal Mountie weatherproof outlet box, a die-cast aluminum 1-gang box, or the Thomas & Betts 2IH3-1 Red-Dot 2-gang conduit outlet box with three 1/2 inch hubs. Both are built for the surface-mounted exterior device work the 72151 steel box is not intended for.

Yes. The 72151 1/2 3/4 E carries UL listing E2969, which is the record facility managers and inspectors look for on a steel outlet box. The manufacturer spec sheet is published with the product if you need the document for a submittal package.

Mounting is wall or ceiling, so it fastens to the structure (stud, strap, or ceiling surface) rather than clipping into finished drywall. It's a drawn steel square box, which is the normal choice for exposed conduit work, new rough-in on metal or wood framing, and ceiling-mounted fixture or junction points. If you're doing residential new work in a stud bay and want a non-metallic multi-gang instead, the Cantex EZ Series PVC box covers that.

Yes. The Steel City 72151 1/2 3/4 E is a square steel box, while the Cantex EZ Box is a PVC multi-gang residential outlet box. The Cantex is nonmetallic and multi-gang, so it suits ganged device rough-in in wood framing; the Steel City box is the steel option.

Not directly. The Red-Dot 2IH3-1 is a 2-gang conduit outlet box with three fixed 1/2 inch hubs, so the conduit entries are cast in and set. The Steel City 72151 1/2 3/4 E is a steel square box with 16 knockouts and a single outlet, giving you a choice of entry points rather than fixed hubs.

There is a dedicated option: the Pass & Seymour P242RRD is a thermoplastic range and dryer box built for that appliance receptacle. The Steel City 72151 1/2 3/4 E is a general-purpose steel outlet box with 29.5 cubic inches of capacity and wall or ceiling mounting, not an appliance-specific assembly.

The Appleton GRT75 is a malleable iron round conduit outlet box, so it is the round-profile choice where a square box will not sit. The Steel City 72151 1/2 3/4 E is square in shape with a 38.1 mm depth.