Eaton B-Line series wiring trough, 14" height, 48" length, 14" 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:
- 14 in
- Product Length Depth:
- 48 in
- Product Weight:
- 51.622 lb
- Product Width:
- 14 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 141448 GRT NK – Frequently Asked Questions
1) Can the B-Line 141448 GRT 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 screw cover seals against a flange and is held down with plated screws, and the body is 16 gauge steel in ANSI 61 gray. It is not a watertight or washdown enclosure, so keep it off direct hose-down or submersion locations.
2) Does the 141448 GRT NK trough come with knockouts for conduit?
No knockouts. The NK in the model designation means it ships blank, so every conduit entry gets punched or hole-sawed on site where you want it. That's the version electricians usually prefer when the conduit layout doesn't match a factory pattern, but it does add field work. If you want pre-punched entries, you need the knockout version of the GRT trough instead.
3) Screw cover or hinged cover trough, which should I use for a 14 x 14 pull section?
This one is a screw cover: the lid lifts completely off after you back out the plated screws, which gives you the whole 14 x 14 opening to pull and dress conductors through, and it keeps the cover clamped tight against the flange for the 3R rating. The tradeoff is that a cover you open often means loose screws and a lid to set down. For panels you access weekly, a hinged-cover trough is easier to live with; for a one-time pull and periodic inspection, the screw cover is the normal choice.
4) Is the Eaton B-Line 141448 GRT NK trough certified for use in Canada?
It is CSA Certified, which is what an inspector on a Canadian job will be looking for on the label. Model number to specify is 141448 GRT NK.
5) Can I gang two of these troughs together to make a longer run?
Yes, that's the normal way troughs are used: because the 141448 GRT NK ships with no knockouts, you cut matching openings in the adjoining ends and bolt the two sections together, which lets you build a run in 48 inch increments at the same 14 x 14 cross section. Connector hardware and any closure plates for the cut openings are ordered separately.
6) Is 16 gauge steel heavy enough for a 48 inch wiring trough carrying a full wire fill?
Yes. The body is 16 gauge steel over a 48 inch span, which is the standard weight for commercial and industrial wiring troughs in this size and holds its shape when the cover is off and you're pulling conductors. The gray finish is ANSI 61, so it matches typical switchgear and panelboard enclosures in an electrical room.
How fast can I get the B-LINE 141448 GRT NK delivered?
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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 141448 GRT NK come with a warranty?
Absolutely. The B-LINE 141448 GRT NK is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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