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Manufacturer Resources
Product Specs
- Certifications:
- CSA C22.2.
- Closure Type:
- Plated screws
- Finish Color:
- Gray
- Material Thickness:
- 16 gauge
- Mounting Method:
- Embossed thru holes
- Product Height:
- 8 in
- Product Length Depth:
- 60 in
- Product Weight:
- 35.402 lb
- Product Width:
- 8 in
- Special Features:
- Cover is held secure by flange and plated screws
- Department:
- Electrical
- Product Type:
- GRTGV NK wiring trough
- Product Details:
- GRTGV NK wiring trough
B-LINE 8860 GRTGV NK – Frequently Asked Questions
1) Can the B-Line 8860 GRTGV NK wiring trough be used outdoors?
It's built to NEMA 3R, so it's rated for outdoor use against falling rain and sleet. The body is galvanized steel in gray with a screw-down cover held by a flange and plated screws, which is what keeps water out of the top seam. For washdown or hose-directed areas you'd want a 4 or 4X enclosure instead.
2) Does this B-Line trough come with knockouts already punched?
No. The NK in 8860 GRTGV NK means no knockouts, so every entry point has to be field-drilled or punched where you want it. That's the version electricians pick when conduit entries don't line up with a standard knockout pattern, or when a 3R installation means you only want holes where you can seal them. If you'd rather not punch, order the knockout version of the same size.
3) How does the cover come off on this screw-cover wireway?
It's a screw cover, not hinged. Plated screws through a flange hold the full-length cover down, so pulling wire means backing the screws out along the run and lifting the cover clear. Plan access accordingly if the trough is going above a panel board or tight to a ceiling.
4) Is this wiring trough approved for Canadian jobs?
The 8860 GRTGV NK carries CSA C22.2 certification, which is the Canadian standard reference an inspector will look for on an enclosure of this type. That matters on cross-border work and on spec jobs that call for CSA marking.
5) What is the exact part number to order this 8x8x60 B-Line trough?
Order it as Eaton B-Line 8860 GRTGV NK. The 8860 gives the 8 inch by 8 inch cross section and the GRTGV NK designates the galvanized screw-cover 3R trough with no knockouts.
6) What gauge steel is the B-Line 8860 trough and is it strong enough for a long unsupported run?
16 gauge galvanized steel, gray finish. That's the standard body weight for an 8x8 wireway of this length. Support spacing still needs to follow the wireway requirements in your local electrical code rather than relying on the section stiffness.
How fast can I get the B-LINE 8860 GRTGV NK delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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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 8860 GRTGV NK come with a warranty?
Absolutely. The B-LINE 8860 GRTGV 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 8860 GRTGV NK?
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