Eaton B-Line series Type 1 junction boxes, 18" height, 6" 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:
- 6 in
- Product Weight:
- 18.3 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 18186 SC NK – Frequently Asked Questions
1) Can the Eaton B-Line 18186 SC NK junction box be used outdoors or in a washdown area?
No. The 18186 SC NK is a NEMA Type 1 enclosure, which is indoor-only protection against dust and incidental contact. It has no gasket rating for rain, hose-down, or corrosive locations. For a wet or outdoor pull box you need a Type 3R or Type 4 enclosure instead.
2) What are the actual box dimensions on the B-Line 18186 SC NK?
It measures 18 inches high by 18 inches wide with a 6 inch depth, so plan for a 6 inch projection off the wall plus conduit bend radius behind your raceways. Shipping/handling weight is 18.3 lb, light enough for one person to hang but worth two hands on a ladder.
3) Does this B-Line junction box come with knockouts, or do I have to punch my own conduit openings?
No knockouts. The 18186 SC NK ships blank, so every conduit entry gets field-punched with a knockout punch or hole saw to suit your raceway layout. That is the point of the NK version, it keeps unused openings out of the box.
4) How does the screw cover on this pull box compare to a hinged door enclosure?
A screw cover is a removable panel fastened with plated screws, with keyhole slots on the cover so it hangs on the screws while you start the rest. That suits a box you open rarely, like a pull or splice point. If technicians need frequent access for terminations or a controller, a hinged-door enclosure is the better pick, since a screw cover has to come fully off and be held.
5) How does the 18186 junction box mount to the wall?
Surface mounting, through thru holes in the back of the enclosure. Fasteners are not part of the box, so pick anchors to suit the substrate (toggles or strut for hollow wall, sleeve anchors for masonry) and rate them for the 18.3 lb empty box plus wiring.
6) Is this junction box UL listed for a commercial electrical inspection?
Yes, the enclosure is built to UL 50, the standard covering enclosures for electrical equipment, and it is made in the US. That plus the Type 1 rating is what an inspector looks for on an indoor surface-mounted pull box.
7) What gauge steel is the B-Line 18186 SC NK, and will it match the grey enclosures already in my plant?
The body is 16 gauge carbon steel with a painted finish in ANSI 61 grey, the standard industrial grey used across most control and enclosure lines, so it blends with existing gear on the wall. Note it is painted steel, not stainless, so keep it out of damp or chemical areas.
How fast can I get the B-LINE 18186 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 18186 SC NK come with a warranty?
Absolutely. The B-LINE 18186 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 18186 SC NK?
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