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Eaton B-Line series Type 3/3R junction boxes
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
- Nema Rating:
- 3R
- Product Height:
- 18 IN
- Product Length Depth:
- 6 IN
- Product Weight:
- 13.5 LB
- Product Width:
- 12 IN
- Special Features:
- Rain hood, plated screws
- Wall Thickness:
- 16 gauge
- Department:
- Electrical
- Product Model:
- RTSC NK enclosure
- Product Color:
- ANSI 61 gray
- Mounting Method:
- Surface
- Product Style:
- Medium single door
- Product Material:
- Carbon steel
- Product Length:
- 6 in
B-LINE 18126 RTSC NK – Frequently Asked Questions
1) Can the B-Line 18126 RTSC NK junction box be mounted outdoors?
Yes. The Eaton B-Line 18126 RTSC NK carries a NEMA 3R rating and includes a rain hood over the cover, so it is built for outdoor wall mounting where falling rain, sleet and ice are the concern. It is not a washdown or hosedown enclosure. The body is carbon steel in a painted ANSI 61 gray finish, and the cover screws are plated to hold up outside.
2) What are the box dimensions on the 18126 RTSC NK enclosure?
It measures 18 inches high, 12 inches wide and 6 inches deep, which is the standard reading of the 18126 designation. That 6 inch depth is what decides whether your wire bending space and any mounted components will fit, so check it against the deepest device you plan to land inside. Shipping weight of the enclosure is 13.5 lb.
3) Does the B-Line 18126 RTSC NK come with knockouts?
No. The NK suffix means no knockouts, so the box arrives with blank walls and you drill or punch your own conduit openings where the job needs them. That is normally what you want on a 3R installation, since you control hole placement and can keep penetrations off the top surface to preserve the rain-tight rating.
4) How does the cover attach on this Eaton B-Line junction box?
A flanged cover held on with screws, using plated screw hardware. There is no hinge and no quarter-turn latch, so it is a maintenance-access box rather than one you open daily. Budget a screwdriver and a few minutes at every opening, and keep the gasket seat clean if you want the 3R performance to hold.
5) How is the 18126 RTSC NK box fastened to a wall?
Surface mount, using embossed thru holes in the back of the enclosure. The embossments hold the box body off the mounting surface so water can drain behind it, which matters on an outdoor wall. Fasteners and any mounting panel are supplied separately by the installer.
6) What gauge steel is the B-Line 18126 RTSC NK made from?
16 gauge carbon steel, painted ANSI 61 gray. That is the usual wall thickness for a mid-size 3R junction box and it takes conduit hubs and drilled penetrations without deforming. Any cut or drilled edge should be touched up to keep corrosion out of the bare steel.
How fast can I get the B-LINE 18126 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 18126 RTSC NK come with a warranty?
Absolutely. The B-LINE 18126 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 18126 RTSC NK?
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installation tips, and troubleshooting. Contact Us
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