Steel City 54151A Octagonal Bo...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$186.26

Steel City 54151A Octagonal Box, 1/2" KO, Clamp

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Model: 54151A-25L

In Stock (leaves warehouse same day if ordered before 3pm ET)

$186.26
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54151A-25L - spec sheet

Product Specs

Product Group:
Boxes & Enclosures
Product Type:
Ceiling Box
Product Material:
Steel
Product Color:
Silver
Product Size:
4 Inches Diameter x 1/2 Inch depth
Department:
Electrical
Product Subgroup:
Electrical Boxes

Steel City 54151A-25L – Frequently Asked Questions

1) What size is the Steel City 54151A octagon box, and will it fit a standard 4 inch octagonal ceiling fixture canopy?
The 54151A is a 4 inch diameter octagon box with a 1/2 inch depth, so it lines up with standard 4 inch octagonal covers and fixture canopies. The shallow 1/2 inch depth is the thing to watch: it is a low-volume box, so it suits a fixture or device with a shallow splice behind it rather than a crowded junction with several cables landing in it.
2) Is a 1/2 inch deep octagon box deep enough for a ceiling fan?
No. A 1/2 inch deep octagon box like the 54151A is a shallow junction and lighting box, not a fan support box. Ceiling paddle fans require a box or brace specifically listed and marked for fan support, which is a separate product. Use the 54151A for a light fixture, smoke detector, or a splice behind a shallow cover.
3) Is the Steel City 54151A box metal, and can I use it for equipment grounding continuity?
It is a steel box, finished silver. Because the enclosure is metal, it can carry the equipment grounding path through listed metallic wiring methods, and it accepts a grounding screw or pigtail the way any steel box does. For nonmetallic cable you still bond the ground conductor to the box.
4) Is the Steel City 54151A sold individually or only by the case?
Both. You can order the 54151A as a single box, or in 25-packs under part numbers 54151A-25L and 54151A-25R. For a one-off ceiling fixture repair the single makes sense; for a rough-in across a floor of units the 25-pack is the way property maintenance and electrical contractors usually buy it.
5) Can the 54151A octagon box be installed in a finished wall or ceiling, or is it for new construction only?
It is a box built for in-wall or in-ceiling mounting, meaning it is recessed into the wall or ceiling cavity rather than surface mounted. With a 1/2 inch depth it sets very shallow, which is why it gets used where joist or deck space is tight. For exposed surface work on a wall face you want a surface-mount box instead.
How fast can I get the Steel City 54151A-25L 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 54151A-25L come with a warranty?
Absolutely. The Steel City 54151A-25L 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 54151A-25L?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Steel City 54151A-25L from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.