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Manufacturer Resources
Product Specs
- Country Of Origin:
- United States
- Number Of Knockouts:
- 8
- Product Type:
- Outlet Box
- Selling Unit Of Measure:
- each
- Standards:
- UL E2969
- 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 52151 MS X – Frequently Asked Questions
1) Will a standard 4 inch square cover or plaster ring fit this box?
It's a standard 4 inch square (4S) steel box, so any 4S device ring, mud ring or flat blank cover fits the corner screw pattern. Rings and covers ship separately, so order the ring depth that matches your finished wall thickness along with the box.
2) Is this box suitable for an outdoor or wet location?
No. This is a plain steel indoor outlet box with open knockouts and no gasketing, so keep it in dry, indoor locations. For an exterior or wet location use a weatherproof box such as the Mulberry Royal Mountie die-cast aluminum 1-gang box or a Thomas & Betts Red-Dot conduit outlet box.
3) Can I use the Steel City 52151 MS X in a hazardous or classified area?
The Steel City 52151 MS X is a UL listed steel outlet box under UL E2969 for general-purpose use, not an explosionproof enclosure. 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. Those are threaded malleable iron bodies rather than a knockout-style sheet steel box.
4) What should I use instead of the Steel City 52151 MS X in a wet or outdoor location?
The Steel City 52151 MS X is a steel 4 inch square box, 4 by 4 by 1-1/2 inches, 21 cubic inches, intended for dry interior work. For an exposed exterior device location, the Mulberry Royal Mountie is a weatherproof die-cast aluminum 1-gang outlet box, and the Thomas & Betts 2IH3-1 Red-Dot is a 2-gang conduit outlet box with three 1/2 inch hubs for surface conduit runs. Both are hub-and-gasket style boxes rather than knockout boxes, so the conduit entry method differs from the 52151 MS X.
5) What size knockouts are on the Steel City 52151 MS X square box, and how many?
Eight knockouts, each a combination 1/2 and 3/4 inch eccentric type, so you can land either trade size without an adapter. That lets you bring in 1/2 inch EMT or flex on most runs and step up to 3/4 inch where the fill requires it.
6) Is the Steel City 52151 MS X UL listed?
Yes. It carries UL file E2969.
7) Is there a nonmetallic alternative to the Steel City 52151 MS X square box?
The 52151 MS X is a steel box with eight 1/2 and 3/4 inch knockouts and a mounting bracket. If the job calls for nonmetallic rough-in, the Cantex EZ Box is a PVC multi-gang residential outlet box, and the Pass and Seymour P242RRD is a thermoplastic range and dryer box. Neither is a 4 inch square steel box, so raceway bonding and box-volume calculations are handled differently than with the Steel City steel box.
8) Is the Steel City 52151 MS X sold individually or by the case?
It's sold each, so you can order the exact count a job needs rather than a full carton. By contrast, some conduit boxes in this category ship only in bulk, such as the Thomas & Betts 2IH3-1 Red-Dot box which comes in packs of 100.
9) Is this outlet box made in the USA?
Yes, the Steel City 52151 MS X square outlet box is US-manufactured, which matters on public and institutional work carrying domestic-content requirements.
How fast can I get the Steel City 52151 MS X delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
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 52151 MS X come with a warranty?
Absolutely. The Steel City 52151 MS X 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 52151 MS X?
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installation tips, and troubleshooting. Contact Us
Why buy the Steel City 52151 MS X from ZenSupply?
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