Steel City 52171V1234 Outlet Box

Two versions of the 4 x 4 x 2-1/8 steel box are offered. The ground bump version (52171 V 1/2 3/4) has a raised, pre-tapped boss in the back for a 10-32 ground screw, so you bond the box without hunting for a tapped hole. The 52171V1234NGB comes without the ground bump but still has the knockouts and a ground provision. If your inspector wants a dedicated bonding point on the box, order the ground bump version.

The Steel City 52171V1234 is a 4 x 4 x 2-1/8 inch steel outlet box for ordinary dry interior work. For an exterior wall or other wet location, a weatherproof box is the right call, such as the Mulberry Royal Mountie die-cast aluminum 1-gang weatherproof outlet box, or the Thomas & Betts 2IH3-1 Red-Dot 2-gang conduit outlet box with three 1/2 inch hubs where you are running conduit. The hub-style bodies accept threaded conduit directly rather than relying on knockouts and connectors.

The Steel City 52171V1234 is a 4 x 4 x 2-1/8 inch steel outlet box intended for ordinary indoor locations. For a classified hazardous area you need a conduit outlet box built for it, such as the Appleton GRJ Series explosionproof malleable iron conduit outlet box or the Appleton GRJS Series universal explosionproof malleable iron box. Those are cast malleable iron bodies with threaded conduit entries, a different mounting and wiring approach than a knockout-style steel box.

It refers to the combination knockouts in the box: each opening takes either 1/2 inch or 3/4 inch conduit or connectors. You knock out the inner ring for 1/2 inch, or pop the full knockout for 3/4 inch, so one box covers both trade sizes without stocking two part numbers.

No, the box ships as a box. You order the cover separately, either a flat blank cover, a device cover, or a raised mud ring sized to your drywall or plaster depth. Connectors or clamps for the 1/2 and 3/4 inch knockouts are also separate.

The Steel City 52171V1234 is a general-purpose 4 x 4 x 2-1/8 inch steel outlet box, not a purpose-built appliance box. For a range or dryer outlet, the Pass & Seymour P242RRD range and dryer box is a thermoplastic box built for that application. Choosing the dedicated appliance box avoids having to assemble a box, ring, and cover plate to suit the large appliance receptacle.

Yes. The 4 x 4 footprint is a two-gang box, so with a two-gang 4-square device cover or mud ring you can mount two devices side by side. Pick a single-gang ring instead and you get one device centered on the same box.

The Steel City 52171V1234 is a square 4 x 4 x 2-1/8 inch steel outlet box used for mounting wiring devices or as a junction point in standard interior work. The Appleton GRT75 is a malleable iron round conduit outlet box, a cast body for conduit runs rather than a sheet-steel device box. Shape and body material drive the choice: the square steel box takes standard 4-inch square covers and device rings, while the round cast body suits conduit pull and splice points.

Silver, which is the standard galvanized steel finish on these boxes. It will match the other galvanized 4-squares already in a commercial ceiling or wall, so it's a clean like-for-like replacement when you're swapping a damaged box on an existing run.