B-Line Eaton series Type 3/3R ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$870.19
B-Line Eaton series Type 3/3R junction boxes, 12" height, 6" length, 10" width, 3R, Hinged cover, RTHC NK enclosure, Surface mounted, Small single do

B-Line Eaton series Type 3/3R junction boxes, 12" height, 6" length, 10" width, 3R, Hinged cover, RTHC NK enclosure, Surface mounted, Small single do

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Model: 12106 RTHC NK
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$870.19
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Eaton B-Line series Type 3/3R junction boxes, 12" height, 6" length, 10" width, NEMA 3R, Hinged cover, RTHC NK enclosure, Surface mounted, Small single door, No knockout, 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:
12 in
Product Length Depth:
6 in
Product Weight:
7.7 lb
Product Width:
10 in
Special Features:
Rain hood, removable cover
Wall Thickness:
16 gauge
Department:
Electrical
Product Model:
RTHC NK enclosure
Product Color:
ANSI 61 Grey
Product Style:
Small single door
Product Material:
Carbon steel

B-LINE 12106 RTHC NK – Frequently Asked Questions

1) Can the B-Line 12106 RTHC NK enclosure be mounted outdoors?
Yes, for outdoor use where falling rain and dripping water are the concern. The 12106 RTHC NK carries a NEMA 3R rating and includes a rain hood over the door. It is not a washdown or hosedown box, so if you need protection against directed water spray or dust ingress you want a Type 4 or 12 enclosure instead.
2) Does this B-Line enclosure come with knockouts for conduit?
No. The NK in 12106 RTHC NK means no knockout, so the carbon steel body ships blank and you drill or punch your own conduit openings where the run actually lands. That is the usual choice for field-routed work; if you want factory holes you need a knockout version of the enclosure.
3) What are the box dimensions of the B-Line 12106 RTHC NK junction box?
12 inches high, 10 inches wide, and 6 inches deep, which is the 12106 part of the model designation. That gives you a 12 x 10 back panel area with 6 inches of depth for terminal blocks, small relays, or wire gutter. Shipping weight on the unit is 7.7 lb.
4) Can I padlock this outdoor junction box shut?
Yes. The single door has a padlock provision, so a standard shackle padlock secures it in a tenant space, parking structure, or any exterior location you need locked down. The door is hinged on a formed top hinge and the cover is removable if you want to work the box on the bench.
5) How does the 12106 RTHC NK mount to a wall?
Surface mount, using embossed thru holes in the back of the enclosure. The holes are formed so the fasteners land on raised bosses rather than flat sheet, which keeps the mounting screws out of the wet interior path. Mounting hardware for your wall type is not part of the enclosure, so anchors or bolts get specified separately.
6) What gauge steel is the B-Line 12106 RTHC NK, and is it painted?
16 gauge carbon steel, painted ANSI 61 grey. That is the standard industrial control enclosure finish, so it will match existing B-Line and other ANSI 61 panels already on a facility wall. Being painted carbon steel rather than stainless, it is not the pick for coastal salt spray or chemical exposure.
How fast can I get the B-LINE 12106 RTHC 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 12106 RTHC NK come with a warranty?
Absolutely. The B-LINE 12106 RTHC 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 12106 RTHC 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 12106 RTHC 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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