B-Line Eaton series Type 3/3R ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$914.29
B-Line Eaton series Type 3/3R junction boxes, 18" height, 10" length, 12" width, 3R, Screw cover, RTSC enclosure, Surface mounted, Medium single door

B-Line Eaton series Type 3/3R junction boxes, 18" height, 10" length, 12" width, 3R, Screw cover, RTSC enclosure, Surface mounted, Medium single door

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Model: 181210 RTSC
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$914.29
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Eaton B-Line series Type 3/3R junction boxes, 18" height, 10" length, 12" width, NEMA 3R, Screw cover, RTSC enclosure, Surface mounted, Medium single door, 5 bottom knockouts, Embossed thru holes, Carbon steel

Manufacturer Resources

Product Specs

Bottom Knockouts:
5
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:
18 in
Product Length Depth:
10 in
Product Weight:
17.6 lb
Product Width:
12 in
Special Features:
Rain hood, plated screws
Wall Thickness:
16 gauge
Department:
Electrical
Product Model:
RTSC enclosure
Product Color:
ANSI 61 Grey
Product Style:
Medium single door
Product Material:
Carbon steel
Product Length:
10 in

B-LINE 181210 RTSC – Frequently Asked Questions

1) Can the B-Line 181210 RTSC junction box be mounted outdoors?
Yes, outdoors is what the RTSC enclosure is built for. It carries a NEMA 3R rating, which means it sheds falling rain, sleet and snow, and it comes with a rain hood over the cover. The carbon steel body is painted ANSI 61 grey. It is not a washdown or hosedown enclosure, so keep it off any surface that gets directly sprayed.
2) What are the actual box dimensions on the 181210 RTSC enclosure?
18 inches high, 12 inches wide and 10 inches deep, which is where the 181210 designation comes from. That 10 inch depth is generous for a junction box, so it gives room for splices, terminal blocks or a small DIN rail behind the screw cover. Shipping weight of the unit is 17.6 lb.
3) Does this Eaton B-Line enclosure come with knockouts or do I have to punch my own conduit holes?
There are 5 knockouts in the bottom of the box, so bottom-entry conduit is ready to go. There are no side or top knockouts listed, which suits a 3R install anyway, since you want penetrations below the rain hood rather than on top where water sits.
4) How does the 181210 RTSC mount to a wall, and will the fasteners break the rain seal?
It is a surface mount enclosure with embossed thru holes in the back pan. The embossing stands the hole off the mounting surface so the box sits proud of the wall and water drains behind it, and you fasten through the back rather than through the sides, so nothing you drill compromises the 3R integrity. Mounting bolts or lags are not supplied, so pick fasteners to suit the substrate.
5) Is the 181210 RTSC enclosure UL listed for a spec job?
The enclosure 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 NEMA Type 3R enclosure per UL 50, this box answers that line. Note the rating on record is 3R only, so a spec demanding 4 or 4X needs a gasketed enclosure instead.
6) Is the cover hinged or does it screw on?
It is a screw cover, flanged, secured with plated screws. That means full removal for wire pulling rather than a door you swing open. If your crew needs repeated access for service without handling loose screws and a loose cover, a hinged door enclosure is the better choice; a screw cover suits a box you terminate once and close up.
7) What gauge steel is the B-Line RTSC box, and is it heavy enough for a commercial exterior wall?
16 gauge carbon steel with a painted finish in ANSI 61 grey. 16 gauge is the standard weight for commercial outdoor junction boxes of this size and holds shape under conduit load without an internal frame. The paint is the corrosion barrier, so touch up any field-drilled holes or scratches before you energize.
8) What part number do I order for the 18 x 12 x 10 B-Line rain-tight screw cover box?
Order Eaton B-Line model 181210 RTSC. RTSC is the screw cover rain-tight series, and the leading digits read height, width, depth: 18 by 12 by 10 inches. It ships as one enclosure with the cover and plated screws; conduit fittings and mounting hardware are separate.
How fast can I get the B-LINE 181210 RTSC 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 181210 RTSC come with a warranty?
Absolutely. The B-LINE 181210 RTSC 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 181210 RTSC?
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 181210 RTSC 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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