B-Line Eaton series wiring tro...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,136.50
B-Line Eaton series wiring trough, 6" height, 48" length, 6" width, GRT NK wiring trough, Embossed thru holes, No knockouts, Screw cover, 3R, Steel,

B-Line Eaton series wiring trough, 6" height, 48" length, 6" width, GRT NK wiring trough, Embossed thru holes, No knockouts, Screw cover, 3R, Steel,

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Model: 6648 GRT NK
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,136.50
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Eaton B-Line series wiring trough, 6" height, 48" length, 6" 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:
6 in
Product Length Depth:
48 in
Product Weight:
21.217 lb
Product Width:
6 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 6648 GRT NK – Frequently Asked Questions

1) Can the B-Line 6648 GRT NK wiring trough be used outdoors?
It's a NEMA 3R rated trough, so it's suited to outdoor use where rain, sleet and snow are the concern. 3R is not a washdown or hosedown rating, so skip it for pressure-wash areas or locations needing 4/4X protection. The steel body is 16 gauge finished in ANSI 61 gray.
2) What are the actual dimensions of the 6648 GRT wiring trough?
6 inches high by 6 inches wide by 48 inches long, and it weighs 21.217 lb. The 6x6 cross section is what you size your conductor fill against, and the 48 inch length is the standard four-foot stick run for tying panels and disconnects together on a wall.
3) Does this B-Line trough come with knockouts for conduit?
No. The NK in 6648 GRT NK means no knockouts, so every conduit entry gets punched or hole-sawed in the field where you want it. That's the version electricians usually prefer for a custom layout; if you want factory openings on a set spacing, order the knockout version of the GRT trough instead.
4) How do you mount this wiring trough to a wall or strut?
The body has embossed thru holes in the back for direct mounting, so it goes straight onto a wall, backboard or strut with your own fasteners. Mounting hardware and anchors aren't part of the trough, so pick bolts to suit the substrate and support the 21.217 lb empty weight plus conductor fill.
5) How does the cover come off on the 6648 GRT trough, screws or hinge?
Screw cover. The cover is held by a flange plus plated screws, not a hinge or latch, so plan on loose hardware and two hands overhead when you open a run. For frequent access to the same section, a hinged-cover trough is the easier choice.
6) Is the Eaton B-Line 6648 GRT NK trough certified for use on an inspected job?
It's CSA Certified, which is the listing an inspector in Canada or a dual-certified US spec will be looking for. The enclosure type on the trough is NEMA 3R.
7) What is the exact part number to order this 6 x 6 x 48 B-Line trough?
Eaton B-Line part number 6648 GRT NK. The number reads as the cross section and length (6 x 6 x 48), GRT for the gutter/trough series, NK for no knockouts. Screw cover, 16 gauge steel, ANSI 61 gray.
8) Will this trough match the gray finish on my existing panelboards and gutter runs?
The finish is ANSI 61 gray, the standard gray used across most commercial electrical gear, so a 48 inch section will read the same as adjacent panels and troughs finished to that spec. Steel body, 16 gauge.
How fast can I get the B-LINE 6648 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 6648 GRT NK come with a warranty?
Absolutely. The B-LINE 6648 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 6648 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 6648 GRT NK from ZenSupply?
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