B-Line Eaton series Type 1 jun...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$609.51
B-Line Eaton series Type 1 junction boxes, 18" height, 8" length, 12" width, 1, Screw cover, SC enclosure, Surface mounted, Medium single door, 9 sid

B-Line Eaton series Type 1 junction boxes, 18" height, 8" length, 12" width, 1, Screw cover, SC enclosure, Surface mounted, Medium single door, 9 sid

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Model: 18128 SC
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$609.51
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Eaton B-Line series Type 1 junction boxes, 18" height, 8" length, 12" width, NEMA 1, Screw cover, SC enclosure, Surface mounted, Medium single door, 9 side knockouts,5 top-bottom knockouts, Thru holes, Carbon steel

Manufacturer Resources

Product Specs

Bottom Knockouts:
5
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:
8 in
Product Weight:
15.1 lb
Product Width:
12 in
Side Knockouts:
9
Special Features:
Keyhole slots on cover, plated screws
Top Knockouts:
5
Wall Thickness:
16 gauge
Department:
Electrical
Product Model:
SC enclosure
Product Color:
ANSI 61 Grey
Product Style:
Medium single door
Product Material:
Carbon steel
Product Length:
8 in

B-LINE 18128 SC – Frequently Asked Questions

1) Can a NEMA 1 screw cover junction box like the B-Line 18128 SC be used outdoors or in a washdown area?
No. The 18128 SC carries a NEMA Type 1 rating, which is indoor, general purpose enclosure protection only, against incidental contact and falling dirt. It is not rated for rain, hose down, dust-tight service, or corrosive areas. 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 18128 SC junction box?
18 inches high, 12 inches wide, and 8 inches deep, which is where the 18128 designation comes from. Plan on clearance behind and around the conduit entries as well, since it is a surface mount box with knockouts on nine side locations plus five top and five bottom.
3) Does this Eaton B-Line box come with knockouts already, or do I have to punch my own conduit holes?
Knockouts are factory provided: nine on the sides, five on the top and five on the bottom. That covers most feed and branch runs without pulling out a punch set, though you can still add your own openings where the layout does not line up.
4) How does the 18128 SC mount to a wall, and is mounting hardware included?
It is a surface mount enclosure with thru holes in the back for fasteners straight into the wall or a strut run. Anchors and screws are not part of the box, so pick fasteners to suit the substrate. At 15.1 pounds empty, block or concrete needs proper anchors rather than drywall plugs.
5) Screw cover or hinged door enclosure, which should I use for a junction box I rarely open?
A screw cover box like the 18128 SC is the right call for pull points and splice boxes you open occasionally. The cover comes fully off, so you get unobstructed access to all four corners for pulling and dressing conductors. Keyhole slots on the cover let you hang it on loosened screws while you work. If the box is a control enclosure you open daily, a hinged door version saves time instead.
6) What gauge steel is this enclosure, and will it hold up in a mechanical room or plant?
The body is carbon steel at 16 gauge, painted ANSI 61 grey, with plated cover screws. That is standard commercial weight for a wall mounted pull box and stiff enough to carry conduit entries without oil-canning. Since it is painted carbon steel and NEMA 1, keep it out of damp or corrosive rooms where it would rust.
7) Will this box match the grey finish on the panels and gutter already installed in my building?
The finish is ANSI 61 grey paint, the same industry standard grey used on most switchgear, panelboards and wireway, so it will read as a match alongside existing gear. Good choice if you are standardizing enclosure appearance across a facility.
How fast can I get the B-LINE 18128 SC 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 18128 SC come with a warranty?
Absolutely. The B-LINE 18128 SC 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 18128 SC?
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 18128 SC 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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