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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:
- 24 IN
- Product Length Depth:
- 8 IN
- Product Weight:
- 28.5 LB
- Product Width:
- 18 IN
- Special Features:
- Rain hood, plated screws
- Wall Thickness:
- 16 gauge
- Department:
- Electrical
- Product Model:
- RTSC NK enclosure
- Product Color:
- ANSI 61 Grey
- Mounting Method:
- Surface
- Product Style:
- Medium single door
- Product Material:
- Carbon steel
B-LINE 24188 RTSC NK – Frequently Asked Questions
1) Can the B-Line 24188 RTSC NK junction box be mounted outdoors?
Yes. The Eaton B-Line 24188 RTSC NK carries a NEMA Type 3R rating and includes a rain hood, so it is built for outdoor wall mounting where falling rain, sleet and snow are the concern. It is not rated for washdown or hosedown locations, and the painted carbon steel body means you want it out of direct salt spray.
2) What are the actual box dimensions of the 24188 RTSC NK enclosure?
24 inches high by 18 inches wide with an 8 inch depth, which is where the 24188 designation comes from. Plan for 8 inches of clearance off the wall plus the rain hood projection at the top when you lay out conduit runs.
3) Does this Eaton B-Line box come with knockouts, or do I have to drill it?
The NK in 24188 RTSC NK means no knockouts. The enclosure ships blank, so you punch your own conduit openings where the run actually lands. That is the usual choice on a 3R box because every hole you punch is a hole you have to seal against rain, and factory knockouts in the wrong place are dead weight. If you want pre-punched openings, order a knockout version instead.
4) Is the 24188 RTSC NK enclosure UL listed for an inspected commercial job?
It is built to UL 50, the standard covering enclosures for electrical equipment. Sheet steel is 16 gauge carbon steel with a painted finish. If your spec also calls for a specific NEMA type, this one is 3R.
5) How does the cover attach on the 24188 RTSC NK, and can I get into it quickly for service?
It is a flanged screw cover, not a hinged door, and the screws are plated to resist corrosion outdoors. That means removing the cover entirely for service rather than swinging it open, so allow room to set it down and keep the gasket face clean when you reinstall. For frequent access, a hinged-door enclosure is the better pick.
6) Will this box match the grey finish on the rest of my Eaton enclosures?
The finish is ANSI 61 Grey paint, the standard shade used across industrial electrical enclosures and switchgear, so it lines up visually with other ANSI 61 gear on the same wall. Touch-up on field-punched edges is worth doing, since bare carbon steel at a cut hole will rust in an outdoor 3R location.
7) Is this Eaton B-Line junction box made in the USA?
Country of origin is the US, which matters on government, school and other publicly funded work carrying domestic sourcing requirements.
How fast can I get the B-LINE 24188 RTSC NK delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
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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 24188 RTSC NK come with a warranty?
Absolutely. The B-LINE 24188 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 24188 RTSC NK?
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installation tips, and troubleshooting. Contact Us
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