B-Line Eaton series Type 3/3R ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$2,976.23
B-Line Eaton series Type 3/3R junction boxes, 30" height, 12" length, 24" width, 3R, Screw cover, RTSC NK enclosure, Surface mounted, Medium single d

B-Line Eaton series Type 3/3R junction boxes, 30" height, 12" length, 24" width, 3R, Screw cover, RTSC NK enclosure, Surface mounted, Medium single d

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Model: 302412 RTSC NK
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$2,976.23
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Eaton B-Line series Type 3/3R junction boxes, 30" height, 12" length, 24" width, NEMA 3R, Screw cover, RTSC NK enclosure, Surface mounted, Medium single door, No knockout, Embossed thru holes, Carbon steel

Manufacturer Resources

Product Specs

Certifications:
UL 50
Closure Type:
Flanged cover
Country Of Origin:
United States
Cover Type:
Screw
Finish Color:
Painted
Mounting Hole Details:
Embossed thru holes
Mounting Method:
Surface
Nema Rating:
3R
Product Height:
30 in
Product Length Depth:
12 in
Product Weight:
63.5 lb
Product Width:
24 in
Special Features:
Rain hood, plated screws
Wall Thickness:
14 gauge
Department:
Electrical
Product Model:
RTSC NK enclosure
Product Color:
ANSI 61 Grey
Product Style:
Medium single door
Product Material:
Carbon steel

B-LINE 302412 RTSC NK – Frequently Asked Questions

1) Can the B-Line 302412 RTSC NK enclosure be mounted outdoors?
Yes, for outdoor use in the rain. The 302412 RTSC NK is rated NEMA 3R, which covers falling rain, sleet and external ice formation, and it includes a rain hood over the cover. It is not a washdown or hosedown box, so if the location gets pressure sprayed or is subject to windblown dust, step up to a Type 4 or 12 enclosure instead.
2) What are the actual box dimensions on the 302412 RTSC NK junction box?
30 inches high, 24 inches wide, and 12 inches deep. That 12 inch depth is what decides whether you can gutter wire behind a panel or mount a DIN rail and components inside, so check your deepest device plus bending space before you commit.
3) Does this B-Line enclosure come with knockouts for conduit?
No. The 302412 RTSC NK is a no-knockout box, so every conduit entry gets punched or hole sawed in the field. That is the usual choice on a 3R outdoor box, because you want entries on the bottom or lower sides and sealed with a raintight fitting rather than wherever the factory put them.
4) How heavy is the 302412 RTSC NK and how does it mount to a wall?
63.5 pounds, and it surface mounts through embossed thru holes in the back of the box. At that weight you want two people and anchors rated for the substrate, hitting studs or masonry anchors rather than drywall. Mounting hardware is not part of the box, so pick your fasteners to match the wall.
5) What gauge steel is this B-Line junction box, and is it painted?
14 gauge carbon steel, painted ANSI 61 grey. That is the standard utility grey, so it will match the rest of a B-Line or Eaton enclosure run on the same wall. Field drilled entries expose bare steel, so touch them up or use a gasketed fitting to keep rust out of the cut edge.
6) Is this enclosure UL listed for an inspected commercial job?
It carries UL 50, the standard for enclosures for electrical equipment, and it is made in the US. Combined with the 3R rating that covers the usual outdoor junction and pull box application on a commercial or multi-family exterior wall.
7) What part number do I order for the 30 x 24 x 12 B-Line 3R screw cover box?
Order Eaton B-Line 302412 RTSC NK. The number reads as the size first (30 high, 24 wide, 12 deep), RTSC for raintight screw cover, NK for no knockouts. The style is a medium single door enclosure.
8) Does this B-Line enclosure include a back panel or subpanel?
No panel is included. The 302412 RTSC NK ships as the box with its flanged screw cover; any mounting panel, terminal blocks or DIN rail are ordered separately. If you are only splicing or pulling conductors, the 12 inch depth gives plenty of room without a panel.
How fast can I get the B-LINE 302412 RTSC 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 302412 RTSC NK come with a warranty?
Absolutely. The B-LINE 302412 RTSC 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 302412 RTSC 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 302412 RTSC 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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