B-Line Eaton series wiring tro...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$857.73
B-Line Eaton series wiring trough, 8" height, 18" length, 8" width, GRT NK wiring trough, Embossed thru holes, No knockouts, Screw cover, 3R, Steel,

B-Line Eaton series wiring trough, 8" height, 18" length, 8" width, GRT NK wiring trough, Embossed thru holes, No knockouts, Screw cover, 3R, Steel,

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Model: 8818 GRT NK
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$857.73
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Eaton B-Line series wiring trough, 8" height, 18" length, 8" width, GRT NK wiring trough, Embossed thru holes, No knockouts, Screw cover, NEMA 3R, Steel, Plated screws, ANSI 61 gray, 16 gauge

Manufacturer Resources

Product Specs

Certifications:
CSA Certified
Closure Type:
Plated screws
Finish Color:
ANSI 61 gray
Material Thickness:
16 gauge
Mounting Method:
Embossed thru holes
Product Height:
8 in
Product Length Depth:
18 in
Product Weight:
12.802 lb
Product Width:
8 in
Special Features:
Cover is held secure by flange and plated screws
Department:
Electrical
Product Type:
GRT NK wiring trough
Product Details:
GRT NK wiring trough

B-LINE 8818 GRT NK – Frequently Asked Questions

1) Can the B-Line 8818 GRT NK wiring trough be used outdoors?
The Eaton B-Line 8818 GRT NK trough is a NEMA 3R enclosure, so it is built for outdoor use where rain and falling debris are the concern. NEMA 3R is not rated for washdown, hosedown, or dust-tight service. The steel body is finished in ANSI 61 gray.
2) Does the 8818 GRT NK trough come with knockouts, or do I have to drill my own conduit entries?
No knockouts. The 8818 GRT NK is the NK (no knockout) version, so every conduit entry gets punched or drilled on site wherever your run needs it. Plan for a knockout punch set sized to your conduit, since the body is 16 gauge steel. If you would rather have factory openings, you need a knockout version of the trough instead.
3) What are the actual inside dimensions of the 8818 wiring trough, and how many conductors will it handle?
It is an 8 by 8 inch cross section with an 18 inch length. The 8 x 8 opening is what governs your wire fill and bend radius at the gutter, and the 18 inch run is typically used as a pull or splice section between panels rather than as a long raceway. For longer runs, troughs of the same 8 x 8 cross section are joined end to end.
4) How does the cover come off on the B-Line 8818 GRT NK, and can I open it after it is mounted?
It is a screw cover, not a hinged door. The cover seats against a flange and is held by plated screws, so you back the screws out to open it and reinstall them to close. Allow clearance in front of the trough for cover removal and keep the screws with the unit, since the flange and screws together are what maintain the 3R seal.
5) Is the 8818 GRT NK wiring trough listed or certified for a code inspection?
It is CSA Certified. That is the certification carried on the 8818 GRT NK; confirm with your AHJ that CSA certification satisfies the listing requirement for your jurisdiction and application.
6) Is 16 gauge steel heavy enough for a wiring trough on a commercial job?
The 8818 GRT NK body is 16 gauge steel, which is the usual commercial weight for a screw cover gutter in this size and is stiff enough to punch conduit knockouts on site without the wall oil-canning. Finished ANSI 61 gray, the standard gray used on electrical gear, so it blends with panelboards and disconnects already on the wall.
How fast can I get the B-LINE 8818 GRT 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 8818 GRT NK come with a warranty?
Absolutely. The B-LINE 8818 GRT 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 8818 GRT 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 8818 GRT NK from ZenSupply?
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