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Manufacturer Resources
Product Specs
- Country Of Origin:
- United States
- Number Of Knockouts:
- 11
- Product Type:
- Outlet Box
- Selling Unit Of Measure:
- each
- Standards:
- UL E2969
- Volume:
- 30.3 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 2-1/8 Inches depth
- Product Color:
- Silver
- Product Material:
- Steel
Steel City 52171 VN – Frequently Asked Questions
1) How many 12 AWG conductors can I put in a 30.3 cubic inch 4 inch square box?
At 30.3 cubic inches of box volume, NEC box fill allows 13 conductors of 12 AWG (2.25 cubic inches each) or 15 of 14 AWG (2.0 cubic inches each) before deductions. Remember devices, clamps and equipment grounds each take their own allowance off that total, so the usable conductor count drops once a receptacle or switch goes in.
2) Can this 4 inch square steel box be used outdoors or in a wet location?
No. The 52171 VN is a plain steel indoor outlet box, not a weatherproof or hazardous-location enclosure. For an exterior wall or a wet location use a weatherproof box such as the Mulberry Royal Mountie die-cast aluminum 1-gang, or a Thomas and Betts Red-Dot 2IH3-1 two-gang conduit outlet box with three 1/2 inch hubs. For Class I or II hazardous areas you need an explosionproof malleable iron box such as the Appleton GRJ or GRJS series.
3) Does the Steel City 52171 VN come with a cover or mud ring?
It is sold as the box only, one each. A 4 inch square box takes a separate flat blank cover or a plaster/device ring sized to your wall finish depth and to the device you are mounting, so order that ring or cover alongside it. Note that an added device ring adds its own cubic inch capacity on top of the box's 30.3.
4) Will this 4 inch square box fit standard stud framing at 2-1/8 inch depth?
At 2-1/8 inches deep the box sits well inside a 3-1/2 inch deep 2x4 stud bay, leaving room behind for conduit sweeps and clamps. Set the face so the mud ring you add brings it flush with the finished wall surface, since the box itself is the deep 4 inch square profile and not a shallow one.
5) Does the Steel City 52171 VN carry a UL listing like the explosionproof boxes do?
Yes. The Steel City 52171 VN steel 4-inch square box is covered under UL E2969. That listing is for ordinary-location use; the Appleton GRJS Series universal conduit outlet box is the explosionproof malleable iron design if the specification on the drawing calls for a classified enclosure instead.
6) Is there a nonmetallic alternative to the Steel City 52171 VN square box?
The 52171 VN body is steel. If the job calls for a nonmetallic box, the Cantex EZ Box series is a PVC multi-gang residential outlet box. Note that a PVC box is wired with nonmetallic methods, while the steel 4-inch square accepts the knockout-based connectors common to metal raceway and cable work.
7) I need more than one gang in a single box - what is an option other than the Steel City 52171 VN?
The 52171 VN is a single 4-inch square box. For multi-gang work, the Cantex EZ Box series is a PVC multi-gang residential outlet box, and the Thomas and Betts 2IH3-1 Red-Dot is a 2-gang conduit outlet box with three 1/2 in. hubs. The square steel box can also be ganged by using an appropriate multi-device mud ring over it.
How fast can I get the Steel City 52171 VN 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 52171 VN come with a warranty?
Absolutely. The Steel City 52171 VN 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 52171 VN?
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