B-Line Eaton series Type 3/3R ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$4,964.89
B-Line Eaton series Type 3/3R junction boxes, 36" height, 12" length, 36" width, 3R, Screw cover, RTSC NK enclosure, Surface mounted, Medium single d

B-Line Eaton series Type 3/3R junction boxes, 36" height, 12" length, 36" width, 3R, Screw cover, RTSC NK enclosure, Surface mounted, Medium single d

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Model: 363612 RTSC NK
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$4,964.89
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Eaton B-Line series Type 3/3R junction boxes, 36" height, 12" length, 36" 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
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:
36 in
Product Length Depth:
12 in
Product Weight:
129.8 lb
Product Width:
36 in
Special Features:
Rain hood,flanged cover,plated studs and wing nuts
Wall Thickness:
12 gauge
Department:
Electrical
Product Model:
RTSC NK enclosure
Product Color:
ANSI 61 Grey
Product Style:
Medium single door
Product Material:
Carbon steel

B-LINE 363612 RTSC NK – Frequently Asked Questions

1) Can a NEMA 3R junction box like the B-Line 363612 RTSC NK be mounted outdoors?
Yes, outdoor use is what a 3R enclosure is built for. The B-Line 363612 RTSC NK carries a NEMA 3R rating, which covers falling rain, sleet and external ice formation on an outdoor enclosure. It also comes with a rain hood and a flanged cover, so water shedding at the cover seam is handled. What 3R does not give you is protection against windblown dust or hose-directed water, so for washdown or dusty industrial areas you want a 4 or 4X enclosure instead.
2) What are the actual box dimensions on the B-Line 363612 RTSC NK enclosure?
36 inches high, 36 inches wide, and 12 inches deep. That 12 inch depth is the number to check against your conduit runs and gutter space, since it sets how much room you have behind the door for bends and terminations. Wall area available inside for a panel or terminal strip is the full 36 by 36 face.
3) Does the 363612 RTSC NK come with knockouts, or do I have to drill my own conduit entries?
No knockouts. The NK in the model designation means the box ships blank, so every conduit entry gets punched or drilled on site where you want it. That is usually the preference on an outdoor 3R box, since you control hole placement and keep unused openings out of the weather. Plan on a hole punch set sized for your conduit and appropriate raintight fittings for the entries you make.
4) Is the cover hinged or does it screw on?
Screw cover. The 363612 RTSC NK uses a flanged screw-on cover secured with plated studs and wing nuts, which means the cover comes fully off for access rather than swinging open. That is fine for a junction or pull box you open occasionally, but if the box is opened routinely, or sits somewhere you cannot set a 36 by 36 cover panel down safely, look for a hinged door enclosure instead.
5) Is this B-Line enclosure UL listed for a spec job?
The 363612 RTSC NK is built to UL 50, the standard covering enclosures for electrical equipment, and it is made in the US. If your submittal calls out a UL 50 rated NEMA 3R steel enclosure, that is what this is.
6) What is the exact part number to order this 36x36x12 B-Line 3R screw cover box?
Order it as B-Line 363612 RTSC NK. The number reads out as the dimensions first, 36 high by 36 wide by 12 deep, then RTSC for the raintight screw cover style and NK for no knockouts. There is a single configuration, so there are no finish or knockout options to pick.
How fast can I get the B-LINE 363612 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 363612 RTSC NK come with a warranty?
Absolutely. The B-LINE 363612 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 363612 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 363612 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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