B-Line Eaton series Type 3/3R ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$605.23
B-Line Eaton series Type 3/3R junction boxes, 8" height, 4" length, 6" width, 3R, Hinged cover, RTHC enclosure, Surface mounted, Small single door, 3

B-Line Eaton series Type 3/3R junction boxes, 8" height, 4" length, 6" width, 3R, Hinged cover, RTHC enclosure, Surface mounted, Small single door, 3

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Model: 864 RTHC
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$605.23
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Eaton B-Line series Type 3/3R junction boxes, 8" height, 4" length, 6" width, NEMA 3R, Hinged cover, RTHC enclosure, Surface mounted, Small single door, 3 knockouts, Embossed thru holes, Carbon steel

Manufacturer Resources

Product Specs

Certifications:
UL 50
Closure Type:
Formed top hinge
Country Of Origin:
United States
Cover Type:
Hinged
Finish Color:
Painted
Locking Provisions:
Padlock provision
Mounting Hole Details:
Embossed thru holes
Mounting Method:
Surface
Nema Rating:
3R
Product Height:
8 in
Product Length Depth:
4 in
Product Weight:
3.4 lb
Product Width:
6 in
Special Features:
Rain hood, removable cover
Wall Thickness:
16 gauge
Department:
Electrical
Product Model:
RTHC enclosure
Product Color:
ANSI 61 Grey
Product Style:
Small single door
Product Material:
Carbon steel

B-LINE 864 RTHC – Frequently Asked Questions

1) Can the B-Line 864 RTHC junction box be mounted outdoors?
Yes, within limits. The 864 RTHC carries a NEMA 3R rating, so it handles rain, sleet and outdoor weather on an exterior wall, and it includes a rain hood over the door. NEMA 3R is not a washdown or hosedown rating, so for direct spray or dust-tight service you want a 4 or 12 enclosure instead. Mounting is surface, using the embossed thru holes in the back.
2) What are the actual box dimensions on the B-Line 864 RTHC, and will it fit a shallow wall run?
It measures 8 inches high, 6 inches wide and 4 inches deep. That 4 inch depth gives room for splices and a small terminal strip, but it is a surface box, so the full 4 inches stands off the wall face. The whole unit weighs 3.4 lb, light enough for one person to hold while setting anchors.
3) Does this B-Line enclosure come with knockouts already, or do I have to punch my own conduit holes?
The 864 RTHC ships with 3 knockouts, so on a simple feed-through or splice you may not need to punch anything. Any additional conduit entries get punched in the field. The body is 16 gauge carbon steel, so plan on a knockout punch rather than a hole saw.
4) Can I padlock this outdoor junction box shut?
Yes. The door has a padlock provision, so on a tenant-accessible or public exterior wall you can lock it without adding hardware to the enclosure. The cover is hinged on a formed top hinge and is also removable, which is handy when you want it out of the way while pulling wire.
5) Will the grey finish on this enclosure match the other panels and boxes already on my building?
The 864 RTHC is painted ANSI 61 grey, the standard light grey used across most commercial panelboards, disconnects and enclosures, so it lines up visually with existing gear from most manufacturers. It is a painted carbon steel finish, not stainless or galvanized, so exterior installations should be touched up if the paint gets scratched during mounting.
6) Should I use a hinged-cover box like this or a screw-cover junction box?
A hinged cover like the 864 RTHC pays off where you open the box more than once, for troubleshooting, seasonal controls, or metering taps, because there are no cover screws to drop off a ladder and no gasket to chase. A screw-cover box is the cheaper choice for a splice you close up and never touch again. Note this one is also a removable cover, so you still get full access when you need the lid off completely.
7) What is the exact part number to order this B-Line box, and is it made in the US?
Order it as Eaton B-Line 864 RTHC, the RTHC series small single door enclosure. Country of origin is the US.
How fast can I get the B-LINE 864 RTHC 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 864 RTHC come with a warranty?
Absolutely. The B-LINE 864 RTHC 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 864 RTHC?
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 864 RTHC 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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