B-Line Eaton series Type 1 jun...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$2,434.23
B-Line Eaton series Type 1 junction boxes, 36" height, 8" length, 30" width, 1, Screw cover, SC NK enclosure, Surface mounted, Medium single door, Th

B-Line Eaton series Type 1 junction boxes, 36" height, 8" length, 30" width, 1, Screw cover, SC NK enclosure, Surface mounted, Medium single door, Th

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Model: 30308 SC NK
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$2,434.23
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Eaton B-Line series Type 1 junction boxes, 36" height, 8" length, 30" width, NEMA 1, Screw cover, SC NK enclosure, Surface mounted, Medium single door, 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:
36 in
Product Length Depth:
8 in
Product Weight:
73.7 lb
Product Width:
30 in
Special Features:
Keyhole slots on cover, plated screws
Wall Thickness:
12 gauge
Department:
Electrical
Product Model:
SC NK enclosure
Product Color:
ANSI 61 gray
Product Style:
Medium single door
Product Material:
Carbon steel

B-LINE 30308 SC NK – Frequently Asked Questions

1) Can a NEMA 1 junction box like the B-Line 30308 SC NK be used outdoors or in a washdown area?
No. The 30308 SC NK carries a NEMA Type 1 rating, which is indoor use only, for protection against incidental contact with the enclosed equipment and falling dirt. It offers no protection against rain, hose-down, dust ingress, or oil. For outdoor or wet locations you need a Type 3R or Type 4 enclosure instead.
2) What are the actual box dimensions of the B-Line 30308 SC NK junction box?
36 inches high by 30 inches wide, with an 8 inch depth. That depth is the number to check first: 8 inches is enough for typical wire pulling and splicing but tight if you are mounting deep gear inside. Plan your wall space for the full 36 by 30 face plus clearance to get the screw cover off.
3) Does the B-Line 30308 junction box come with knockouts for conduit?
No. The SC NK designation means screw cover, no knockouts. The box ships with blank walls, so you drill or punch your own conduit openings exactly where the run lands. That is an advantage on a custom layout and extra labor if you wanted factory openings. The carbon steel is 12 gauge, so use a knockout punch rather than a hole saw.
4) Is this B-Line enclosure UL listed for an inspected commercial install?
It is built to UL 50, the standard covering enclosures for electrical equipment, and rated NEMA Type 1. For an indoor commercial or industrial pull box or wiring trough application, that is the rating an inspector looks for on a Type 1 enclosure.
5) How heavy is this 36 x 30 x 8 B-Line enclosure, and is it a one-man hang?
73.7 lb empty. That is a two-person lift to get onto the wall, and the anchors need to carry it plus whatever you fill it with. The box mounts surface-style through thru holes in the back, so set your anchors into studs or use through-bolts on block or concrete.
6) How does the cover come off on this screw cover junction box, and is it hinged?
It is not hinged. The cover is a full screw-on panel using plated screws, and it has keyhole slots so you can back the screws out part way and lift the cover off without removing them completely. Handy on a 36 by 30 cover you are holding one-handed. Leave working clearance in front of the box for cover removal, since it does not swing on a hinge.
7) What exact part number do I order for this B-Line box, and where is it made?
Order Eaton B-Line part number 30308 SC NK. The number reads out of the size: 30 (height code), 30 (width), 8 (depth), screw cover, no knockouts. It is made in the US.
8) What color is the B-Line 30308 SC NK enclosure, and will it match our other gear?
Painted ANSI 61 gray, the standard gray used across most industrial panelboards, control cabinets, and enclosures, so it lines up visually with typical switchgear in a plant or mechanical room. The paint is over carbon steel, which means scratches need touch-up in a damp indoor space.
9) Is 12 gauge steel heavy enough for a large pull box carrying conduit runs?
Yes, 12 gauge is heavy-wall for an enclosure of this size, which matters on a 36 by 30 face because the walls have to stay rigid once you punch multiple conduit openings and hang raceway off them. Lighter 16 gauge boxes tend to oil-can at these dimensions.
How fast can I get the B-LINE 30308 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 30308 SC NK come with a warranty?
Absolutely. The B-LINE 30308 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 30308 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 30308 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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