B-Line Eaton series Type 1 jun...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$787.07
B-Line Eaton series Type 1 junction boxes, 24" height, 8" length, 12" width, 1, Screw cover, SC NK enclosure, Surface mounted, Medium single door, No

B-Line Eaton series Type 1 junction boxes, 24" height, 8" length, 12" width, 1, Screw cover, SC NK enclosure, Surface mounted, Medium single door, No

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Model: 24128 SC NK
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$787.07
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Eaton B-Line series Type 1 junction boxes, 24" height, 8" length, 12" width, NEMA 1, Screw cover, SC NK enclosure, Surface mounted, Medium single door, No knockout, Thru holes, Carbon steel

Manufacturer Resources

Product Specs

Certifications:
UL 50
Country Of Origin:
United States
Cover Type:
Screw
Finish Color:
Painted
Mounting Hole Details:
Thru holes
Mounting Method:
Surface
Nema Rating:
1
Product Height:
24 in
Product Length Depth:
8 in
Product Weight:
19.4 lb
Product Width:
12 in
Special Features:
Keyhole slots on cover, plated screws
Wall Thickness:
16 gauge
Department:
Electrical
Product Model:
SC NK enclosure
Product Color:
ANSI 61 Grey
Product Style:
Medium single door
Product Material:
Carbon steel
Product Length:
8 in

B-LINE 24128 SC NK – Frequently Asked Questions

1) Can the Eaton B-Line 24128 SC NK junction box be used outdoors or in a washdown area?
No. The 24128 SC NK is a NEMA Type 1 enclosure, which is for indoor use only and protects against incidental contact and falling dirt. It gives no protection against rain, hose-down, dust ingress, or corrosive environments. For a wet or outdoor location you need a Type 3R or Type 4 enclosure instead.
2) What are the actual box dimensions of the B-Line 24128 junction box?
It measures 24 inches high, 12 inches wide, and 8 inches deep. The model designation reads the same way: 24 x 12 x 8. Lay out your conduit runs and gutter space against the 8 inch depth, since that is the tightest dimension for bending radius on larger conductors.
3) Does this B-Line screw cover box come with knockouts already punched?
No knockouts. The 24128 SC NK is the NK (no knockout) version, so all four sides and the back are blank steel and you punch your own openings where the job needs them. If you want factory knockouts for standard trade sizes, order the knockout version of the same box rather than this one.
4) Is this enclosure UL listed for a commercial or institutional job spec?
It carries UL 50, the standard covering enclosures for electrical equipment. Paired with the NEMA Type 1 rating, that is what most indoor commercial and institutional specs call for on a pull or junction box. The box is made in the US, which matters if your project carries a domestic sourcing requirement.
5) How is this junction box mounted to the wall?
Surface mounting, using thru holes in the back of the enclosure. You anchor straight through the back panel into the wall or strut, so pick fasteners for your substrate; none are supplied with the box. At 19.4 pounds empty it is a two-anchor-minimum job on drywall, and unistrut is the cleaner answer on block or concrete.
6) Is the cover hinged or does it screw on?
Screw cover. The lid comes off completely once the plated screws are backed out, which means you want clearance in front of the box to handle a 24 by 12 inch panel. The cover uses keyhole slots, so you can loosen the screws rather than fully remove them and drop the cover off, which helps when you are working off a ladder.
7) What gauge steel is the B-Line 24128 SC NK box, and is it painted?
16 gauge carbon steel, finished in painted ANSI 61 grey. That is the standard gear grey, so it blends with switchgear and panelboards in a mechanical or electrical room. The paint is a finish coat only, not a corrosion system for a damp location.
8) What is the exact part number to order this B-Line box?
The catalog number is 24128 SC NK from Eaton's B-Line series. The number decodes as 24 inch height, 12 inch width, 8 inch depth, screw cover, no knockouts. Adjacent B-Line numbers change one of those values, so confirm all three dimensions in the number before you release the order.
9) Can I use this as a pull box or a terminal box, not just a junction box?
Yes. It is a blank screw cover Type 1 enclosure with no internal equipment, so it works as a pull box, a splice box, or a terminal box if you add a panel. The 8 inch depth gives room to stand terminal blocks or DIN rail off the back wall, and the no-knockout construction lets you place conduit entries to suit the layout.
How fast can I get the B-LINE 24128 SC NK 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 B-LINE 24128 SC NK come with a warranty?
Absolutely. The B-LINE 24128 SC NK 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 B-LINE 24128 SC NK?
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 B-LINE 24128 SC NK 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.
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