B-Line Eaton series Type 3/3R ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$705.65
B-Line Eaton series Type 3/3R junction boxes, 12" height, 6" length, 8" width, 3R, Hinged cover, RTHC NK enclosure, Surface mounted, Small single doo

B-Line Eaton series Type 3/3R junction boxes, 12" height, 6" length, 8" width, 3R, Hinged cover, RTHC NK enclosure, Surface mounted, Small single doo

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Model: 1286 RTHC NK
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$705.65
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Manufacturer Resources

Product Specs

Certifications:
UL 50
Closure Type:
Formed top hinge
Country Of Origin:
United States
Cover Type:
Hinged
Finish Color:
Painted
Locking Provisions:
Padlock provision
Mounting Hole Details:
Embossed thru holes
Mounting Method:
Surface
Nema Rating:
3R
Product Height:
12 in
Product Length Depth:
6 in
Product Weight:
7.7 lb
Product Width:
8 in
Special Features:
Rain hood, removable cover
Wall Thickness:
16 gauge
Department:
Electrical
Product Model:
RTHC NK enclosure
Product Color:
ANSI 61 Grey
Product Style:
Small single door
Product Material:
Carbon steel

B-LINE 1286 RTHC NK – Frequently Asked Questions

1) Can the B-Line 1286 RTHC NK junction box be mounted outdoors?
Yes, within the limits of a NEMA 3R rating. The 1286 RTHC NK is a Type 3/3R enclosure with a rain hood over a formed top hinge, so it sheds falling rain, sleet and snow on an exterior wall. 3R does not cover hose-directed water or windblown dust, so for washdown areas or heavy dust you want a 4 or 12 rated box instead.
2) What are the actual box dimensions on the B-Line 1286 RTHC NK enclosure?
12 inches high, 8 inches wide and 6 inches deep. That 6 inch depth is what decides most jobs, it gives you room to land conduit fittings and make up splices behind the door rather than fighting the cover.
3) Does this B-Line enclosure come with knockouts, or do I drill my own conduit entries?
No knockouts. The 1286 RTHC NK is the NK (no knockout) version, so every conduit entry is field-punched where you want it. That is the usual choice for a 3R outdoor box, since you control which walls get penetrated and can keep entries out of the weather. If you want factory holes, order a knockout version of the same box instead.
4) How does the 1286 RTHC NK fasten to the wall, and are mounting holes provided?
It is a surface mount enclosure with embossed thru holes in the back pan, so it bolts flat to a wall, strut or backboard without drilling the box. Embossed holes keep the fastener heads off the mounting surface. Anchors and bolts are sized to your substrate and are not part of the box.
5) Can this outdoor junction box be locked?
Yes. The hinged cover has a padlock provision, so you add your own padlock to secure it. On a tenant-accessible exterior wall that is usually enough to keep the box closed to anyone without the key.
6) Is the cover hinged or fully removable on the B-Line 1286 RTHC NK?
Both. It is a small single door style with a formed top hinge, and the cover is removable. You can swing it open for normal work or lift it off entirely when you need clear access to pull wire or set a DIN rail or subpanel inside.
7) What gauge steel and finish is this B-Line enclosure, and will it hold up on an exterior wall?
16 gauge carbon steel, painted ANSI 61 grey. That is the standard industrial enclosure finish, so it matches the grey gear already on most plant and service walls. Painted carbon steel suits normal outdoor and industrial exposure; for coastal salt air or chemical exposure a stainless or non-metallic enclosure is the better call.
8) Is the B-Line 1286 RTHC NK UL listed for an inspected installation?
It carries UL 50, the standard for enclosures for electrical equipment, which is what an inspector looks for on a junction box body. Made in the US.
9) How much does the 1286 RTHC NK weigh for one-man installation?
7.7 pounds empty. One person can hold it in place and set the anchors, though on block or brick it is easier to drill and set anchors first, then hang the box on the embossed thru holes.
How fast can I get the B-LINE 1286 RTHC 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 1286 RTHC NK come with a warranty?
Absolutely. The B-LINE 1286 RTHC 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 1286 RTHC 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 1286 RTHC 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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