Milbank 4418-GSC1 NEMA 1 Screw...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$38.53
Milbank 4418-GSC1 NEMA 1 Screw-Cover Wireway

Milbank 4418-GSC1 NEMA 1 Screw-Cover Wireway

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Model: 4418-GSC1

In Stock (leaves warehouse same day if ordered before 3pm ET)

$38.53
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Milbank 4418-GSC1 NEMA 1 Screw-Cover Wireway

The Milbank 4418-GSC1 is a NEMA 1 screw-cover wireway engineered to route, organize, and protect electrical conductors in indoor installations. As a general-purpose enclosure, this wireway is intended for dry, indoor environments where a NEMA 1 rating provides protection against dust and incidental contact with live parts. The screw-secured cover gives electricians a straightforward, economical way to access conductors inside the trough without the added cost and complexity of a hinged door assembly. Contractors specify screw-cover wireways like this Milbank unit to build clean, code-compliant wiring pathways between panelboards, disconnects, and other electrical equipment.

Key Features

  • NEMA 1 Rated Enclosure: Built for indoor, general-purpose environments, offering protection against dust and incidental contact.
  • Screw-Cover Access: The cover is secured with screws rather than hinges, giving installers a simple and economical way to open the wireway for wiring work.
  • Wireway Trough Construction: Creates an enclosed channel for routing and protecting electrical conductors as they run between pieces of equipment.
  • Indoor Wiring Distribution: Well suited to connecting panelboards, disconnects, and other electrical gear where an open wiring trough is required.
  • Economical Alternative to Hinged Covers: Screw-cover designs like this Milbank wireway reduce cost while still allowing full access to installed wiring when needed.
  • Milbank Manufacturing: Produced by Milbank, a manufacturer of electrical distribution equipment for residential, commercial, and industrial projects.

Certifications & Compliance

  • NEMA 1 Enclosure Rating

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Indoor Electrical Wiring Distribution
  • Panelboard and Equipment Interconnection
  • Commercial and Industrial Wiring Runs
  • General-Purpose Indoor Enclosure Applications
  • New Construction and Retrofit Wiring Projects

Why Milbank?

Milbank is a recognized manufacturer of electrical distribution equipment, and the 4418-GSC1 screw-cover wireway reflects that focus on dependable, code-compliant hardware for indoor wiring installations. Choosing a Milbank NEMA 1 wireway means a general-purpose enclosure designed for straightforward installation and reliable long-term performance on professional electrical projects. For contractors who need an economical, accessible wiring trough, the screw-cover design offers a practical balance of cost and functionality.

Manufacturer Resources

Product Specs

list_batch:
MIL-20260917
Product Type:
Wireway
Configuration:
Screw Cover
Standards:
NEMA 1
Department:
Electrical
Product Subgroup:
Wireway
Product Group:
Conduit & Raceway
Product Length:
18 in
Product Material:
Steel
Product Finish:
ANSI 61 Gray Powder Coat Finish
Product Width:
4 in
Product Height:
4 in

Milbank 4418-GSC1 – Frequently Asked Questions

1) Can the Milbank 4418-GSC1 wireway be installed outdoors or in a wet location?
No. The 4418-GSC1 is a NEMA 1 enclosure, which is general purpose indoor only, protecting against dust and incidental contact with live parts. It should not be used outdoors or anywhere exposed to rain or washdown. For an outdoor run, a raintight wireway such as the Square D RDB Series Square-Duct, rated NEMA 3R, is the right type instead.
2) What is the difference between a screw-cover wireway and a hinged-cover or lay-in wireway?
A screw cover, which is what the Milbank 4418-GSC1 uses, is fastened with screws along the trough. It costs less than a hinged assembly but every access means backing out and reinstalling screws. A hinged cover, like the Square D Square-Duct LDB NEMA 1 wireway, swings open for repeated access. A lay-in design, like the Hoffman F Series F88T172G, lets you drop conductors in from the side rather than pulling them through. If the run will be opened often or you are laying in many conductors, pick the hinged or lay-in style; for a wire it once and close it up job, the screw cover is the economical choice.
3) What should I use instead of the Milbank 4418-GSC1 wireway if the run is outdoors or exposed to rain?
The Milbank 4418-GSC1 is a NEMA 1 screw-cover wireway intended for dry, indoor, general-purpose locations, so it is not the right choice for a wet or weather-exposed run. For that, use the Square D RDB Series Square-Duct, a NEMA 3R raintight wireway built from 16-gauge steel. Keep the Milbank unit for indoor runs between panelboards, disconnects, and other gear.
4) Is there a NEMA 1 wireway with a hinged cover instead of screws?
Yes. The Milbank 4418-GSC1 uses a cover secured with screws rather than hinges, which is the simpler and more economical access method. If you want a hinged door on a NEMA 1 trough, the Square D Square-Duct LDB45 is a NEMA 1 wireway with a hinged cover. Hinged covers let you swing the trough open during pulls and re-close it without handling loose screws and cover panels.
5) What is a screw-cover wireway actually used for on an electrical job?
It is an enclosed metal trough that routes, organizes and protects conductors running between pieces of gear, typically panelboards, disconnects and similar equipment. Electricians use it where conduit would mean too many individual runs and a single pathway makes the work cleaner. The Milbank 4418-GSC1 suits indoor new construction and retrofit wiring in commercial and industrial spaces.
6) What is the exact part number to order the Milbank screw-cover NEMA 1 wireway?
Order Milbank 4418-GSC1. That is the manufacturer part number for the NEMA 1 screw-cover wireway, and it is a single configuration rather than a family with length or finish options to specify.
7) Is a NEMA 1 wireway acceptable for an indoor commercial panelboard interconnection?
Yes, that is exactly the application the Milbank 4418-GSC1 is built for. NEMA 1 is the general purpose indoor rating, and the wireway is intended to connect panelboards, disconnects and other electrical equipment on commercial and industrial runs in dry indoor areas. Keep it out of damp, wet or corrosive locations, where a higher rated enclosure is required.
8) For an indoor commercial run, when would I pick the Square D Square-Duct over the Milbank wireway?
Both cover indoor NEMA 1 wiring distribution. The Square D Square-Duct LDB45 is a NEMA 1 wireway with a hinged cover, which suits runs you expect to reopen often or long troughs at height where loose cover screws are a nuisance. The Milbank 4418-GSC1 screw-cover wireway suits runs that get wired once and closed, connecting panelboards, disconnects, and other electrical gear.
How fast can I get the Milbank 4418-GSC1 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 Milbank 4418-GSC1 come with a warranty?
Absolutely. The Milbank 4418-GSC1 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 Milbank 4418-GSC1?
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 Milbank 4418-GSC1 from ZenSupply?
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