B-Line Eaton series Type 1 jun...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,116.81
B-Line Eaton series Type 1 junction boxes, 18" height, 12" length, 18" width, 1, Screw cover, SC NK enclosure, Surface mounted, Medium single door, N

B-Line Eaton series Type 1 junction boxes, 18" height, 12" length, 18" width, 1, Screw cover, SC NK enclosure, Surface mounted, Medium single door, N

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Model: 181812 SC NK
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,116.81
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Eaton B-Line series Type 1 junction boxes, 18" height, 12" length, 18" 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:
18 in
Product Length Depth:
12 in
Product Weight:
25.3 lb
Product Width:
18 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

B-LINE 181812 SC NK – Frequently Asked Questions

1) Can a NEMA 1 junction box like the B-Line 181812 SC NK be used outdoors or in a wash-down area?
No. The 181812 SC NK is a NEMA Type 1 enclosure, which is indoor only and gives no protection against water, dust ingress or corrosive wash-down. Use it in dry interior spaces such as electrical rooms, mechanical rooms and above-ceiling runs. For outdoor, damp or hose-down locations you need a NEMA 3R, 4 or 4X enclosure instead.
2) What are the actual box dimensions of the B-Line 181812 SC NK junction box?
18 inches high, 18 inches wide and 12 inches deep, so it is a square-face box with a deep back box for splicing and wire bending room. The full 18 x 18 face is the screw cover opening, which makes it practical for pulling multiple large conduits into one gutter point.
3) Does this B-Line junction box come with knockouts, or do I have to drill my own conduit entries?
It is a no-knockout box, so every conduit entry gets punched or drilled in the field. That is the point of the NK version: you place the holes exactly where your raceways land instead of working around factory locations. Budget for a hole punch set and the appropriate connectors, since none are included.
4) Is the B-Line 181812 SC NK enclosure UL listed for an inspected commercial job?
Yes, it carries UL 50 certification, the standard covering enclosures for electrical equipment, and it is built to NEMA Type 1. Made in the US. That combination is what an inspector or a spec reviewer typically wants to see on an indoor junction or pull box.
5) How is this box mounted to the wall, and is mounting hardware included?
It mounts on the surface using thru holes in the back of the enclosure, so it fastens flat to a wall, strut or plywood backboard. Anchors and fasteners are not part of the box, so pick them for your substrate. At 25.3 lb empty, plus conductors, fasten into studs, masonry anchors or Unistrut rather than drywall alone.
6) What gauge steel is this junction box, and will the paint match the rest of my gear?
The body is 16 gauge carbon steel with a painted finish in ANSI 61 grey, the same standard grey used on most switchgear, panelboards and control enclosures, so it blends with existing equipment in an electrical room. Painted carbon steel is for dry indoor service only; it is not a stainless or corrosion-resistant enclosure.
7) Can I use this as a pull box or wiring gutter rather than just a splice box?
Yes. With a 12 inch depth and an 18 x 18 face it gives real bending room for large conductors, and because it ships with no knockouts you can locate conduit entries to suit the pull. Screw cover access means it is intended to stay closed between service visits, unlike a hinged door enclosure you open routinely.
How fast can I get the B-LINE 181812 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 181812 SC NK come with a warranty?
Absolutely. The B-LINE 181812 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 181812 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 181812 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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