B-Line Eaton series Type 1 jun...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$2,700.40
B-Line Eaton series Type 1 junction boxes, 30" height, 12" length, 24" width, 1, Screw cover, SC NK enclosure, Surface mounted, Medium single door, N

B-Line Eaton series Type 1 junction boxes, 30" height, 12" length, 24" width, 1, Screw cover, SC NK enclosure, Surface mounted, Medium single door, N

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Model: 302412 SC NK
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$2,700.40
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Eaton B-Line series Type 1 junction boxes, 30" height, 12" length, 24" 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:
30 in
Product Length Depth:
12 in
Product Weight:
52.1 lb
Product Width:
24 in
Special Features:
Keyhole slots on cover, plated screws
Wall Thickness:
14 gauge
Department:
Electrical
Product Model:
SC NK enclosure
Product Color:
ANSI 61 Grey
Product Style:
Medium single door
Product Material:
Carbon steel

B-LINE 302412 SC NK – Frequently Asked Questions

1) Can a NEMA 1 screw cover junction box like the B-Line 302412 SC NK be used outdoors or in a washdown area?
No. The 302412 SC NK carries a NEMA Type 1 rating, which is indoor, general purpose only. It keeps personnel away from live parts and blocks falling dirt, but it is not sealed against dripping water, rain, hose-down, dust or oil. For outdoor or wet locations you need a NEMA 3R, 4 or 4X enclosure instead.
2) What are the actual box dimensions of the B-Line 302412 SC NK enclosure?
It measures 30 inches high, 24 inches wide and 12 inches deep, so plan a wall area of roughly 30 by 24 inches with a full foot of projection off the surface. That depth matters if it is going in a corridor or mechanical room with clearance limits.
3) Does this B-Line junction box come with knockouts, or do I have to punch my own conduit holes?
No knockouts. The 302412 SC NK ships blank, so every conduit entry gets punched in the field where you want it. That is an advantage when your conduit runs don't line up with factory patterns, but budget time for hole saws or a knockout punch set on a 14 gauge carbon steel wall.
4) How does this box mount to the wall, and are the mounting holes already there?
It is a surface mount enclosure with thru holes in the back pan, so it bolts flat to a wall or structural backing. Fasteners are chosen to suit your substrate and are not part of the box. At 52.1 pounds empty, anchor into studs, unistrut or masonry rather than drywall alone.
5) Should I pick a screw cover box or a hinged door enclosure for a junction box?
A screw cover box like the 302412 SC NK is the right call where you pull wire once and rarely reopen it: splices, taps, pull points, gutter transitions. The cover comes fully off, which gives clear access during the pull. If the enclosure is going to be opened routinely for a panel, controls or terminal blocks, choose a hinged cover version instead so the cover isn't hanging off the conduit while you work. The 302412 cover uses keyhole slots and plated screws, so it hangs on partially backed out screws while you set it.
6) What is the exact part number to order this 30 x 24 x 12 B-Line screw cover box?
Order Eaton B-Line part number 302412 SC NK. The number reads as the dimensions followed by screw cover, no knockout. It is made in the US.
7) What gauge steel and finish is this B-Line enclosure, and will it match the other gear in my electrical room?
The body is 14 gauge carbon steel with a painted finish in ANSI 61 grey, the standard grey used across most switchgear, panels and control enclosures, so it blends with existing equipment in a typical electrical or mechanical room. Screws are plated.
How fast can I get the B-LINE 302412 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 302412 SC NK come with a warranty?
Absolutely. The B-LINE 302412 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 302412 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 302412 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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