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4 IN. SQ BX-1 1/2 IN. DPT
Manufacturer Resources
Product Specs
- Country Of Origin:
- United States
- Product Type:
- Outlet Box
- Selling Unit Of Measure:
- each
- Volume:
- 21 in³
- Department:
- Electrical
- Product Group:
- Boxes & Enclosures
- Product Subgroup:
- Electrical Boxes
- Product Type2:
- Outlet Boxes
- Product Size:
- 4 Inches Height x 4 Inches Width x 1-1/2 Inches depth
- Product Color:
- Silver
- Product Material:
- Steel
Steel City SP 52151 JB13167 – Frequently Asked Questions
1) Can I use the Steel City 4 inch square box outdoors or in a wet location?
No. This is a standard steel 4 square outlet box for dry interior work, not a weatherproof or hazardous-location enclosure. For an exterior wet location use a die-cast weatherproof box such as the Mulberry Royal Mountie 1-gang, or the Thomas & Betts 2IH3-1 Red-Dot conduit outlet box with three 1/2 inch hubs. For a classified hazardous area you need an explosionproof malleable iron box like the Appleton GRJ or GRJS series.
2) Can the Steel City SP 52151 be used in a hazardous or classified area?
The Steel City SP 52151 is a standard 4 in. square steel outlet box for general-purpose wiring. For classified locations the Appleton GRJ series and GRJS series are explosionproof malleable iron conduit outlet boxes, and the Appleton GRT75 is a malleable iron round conduit outlet box in that same family.
3) Is this 4 inch square box steel or plastic, and can I use it with metal conduit and MC cable?
Steel construction, finished silver. A steel 4 square accepts metal raceway and armored cable connectors and carries equipment grounding through the metal enclosure, which a nonmetallic box cannot do. If you want a nonmetallic residential box instead, the Cantex EZ Series PVC multi-gang box is the other direction.
4) Does the 4 inch square box come with a cover or plaster ring?
The box is sold by itself, each. A flat blank cover, a raised device ring, or a mud ring is a separate order, and the ring you pick also adds volume on top of the box's 21 cubic inches. Plan on buying the cover or ring with it.
5) I need a junction box for pulling and splicing a few branch circuits in a commercial ceiling. Is this the right one?
Yes, a 4 x 4 x 1-1/2 inch steel square box is the standard choice for accessible splices and pull points, and 21 cubic inches handles a modest splice count. For splice-only use, cap it with a flat blank cover and keep it accessible. If you are landing a large number of conductors, step up to a deeper 4 square.
6) Is there a non-metallic alternative to the Steel City SP 52151 4 in. square box for residential rough-in?
Yes. The Steel City SP 52151 is a steel outlet box; the Cantex EZ Box is a PVC multi-gang residential outlet box, so it is non-metallic and does not require bonding of the box itself. The Pass and Seymour P242RRD is another non-metallic option, a thermoplastic range and dryer box for that specific appliance outlet.
7) What looks like a substitute for the Steel City SP 52151 but will not take the same cover or device ring?
The SP 52151 is a 4 in. square box with 21 cubic inches of volume, so it accepts standard 4 in. square covers and plaster rings. The Appleton GRT75 is a round conduit outlet box and the Appleton GRJS is a universal conduit outlet box, both malleable iron with their own cover patterns, and the Pass and Seymour P242RRD is a dedicated range and dryer box rather than a general device box. None of those interchange with 4 in. square covers.
8) Where is the Steel City 4 square box made?
Made in the United States. That matters on public and institutional jobs with domestic sourcing requirements, so it's worth noting if you are submitting on a government or school project.
9) What is the Steel City part number for this 4 inch square 1-1/2 inch deep box?
Order it as Steel City SP 52151 JB13167. That's the single model on offer for the 4 x 4 x 1-1/2 inch steel square box, so there are no depth or finish options to specify.
10) If I need more than one device at the same location, is the Steel City SP 52151 the right box?
The Steel City SP 52151 is a single 4 in. square box, 4 x 4 x 1-1/2 in., sold each. For a multi-device opening the Cantex EZ Box is a multi-gang PVC residential box and the Thomas and Betts 2IH3-1 Red-Dot is a 2-gang conduit outlet box with three 1/2 in. hubs.
How fast can I get the Steel City SP 52151 JB13167 delivered?
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Steel City SP 52151 JB13167 come with a warranty?
Absolutely. The Steel City SP 52151 JB13167 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Steel City SP 52151 JB13167?
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