Hoffman Gasketed Screw-Cover S...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$113.74
Hoffman Gasketed Screw-Cover Steel Junction Box Enclosure

Hoffman Gasketed Screw-Cover Steel Junction Box Enclosure

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Model: A12126GSC

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

$113.74
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Hoffman Gasketed Screw-Cover Steel Junction Box Enclosure

The Hoffman Gasketed Screw-Cover Steel Junction Box Enclosure is engineered for enclosing and protecting electrical connections, terminations, and wiring in industrial and commercial installations. This enclosure family is available in sizes ranging from 12" x 12" x 6" up to 18" x 18" x 6", giving electrical professionals a right-sized option for a range of junction and wiring applications. Every enclosure in this family is built with durable steel construction and features a gasketed screw-cover design that helps guard the internal wiring compartment against dust and moisture intrusion. Hoffman is a recognized name in electrical enclosures, and this screw-cover gasketed line carries that same commitment to dependable, code-compliant protection for electrical panels and junction points on the plant floor or in commercial back-of-house spaces.

Key Features

  • Enclosure Size Range: Available from 12" x 12" x 6" through 18" x 18" x 6" to suit varying wiring compartment needs.
  • Screw-Cover Design: A removable screw-secured cover provides straightforward access to the internal wiring compartment for installation, termination, and maintenance work.
  • Gasketed Construction: An integrated gasket seals the cover-to-body interface, helping to reduce the intrusion of dust, dirt, and moisture into the enclosure cavity.
  • Durable Steel Body: Fabricated from steel for rugged mechanical protection of enclosed conductors, terminals, and splices in demanding environments.
  • Junction/Wiring Enclosure Function: Purpose-built to house wiring connections, junctions, and terminations as part of a larger electrical distribution or control system.
  • Hoffman Engineering: Manufactured under the Hoffman brand, known throughout the electrical trade for reliable, well-constructed enclosure products used by contractors and industrial maintenance teams.

Technical Specifications

  • Product Type: Screw-Cover Gasketed Junction Box
  • Construction Material: Steel
  • Cover Style: Screw-Cover, Gasketed
  • Enclosure Size Range: 12" x 12" x 6" to 18" x 18" x 6"
  • Refer to manufacturer documentation for complete dimensional and mounting specifications.

Typical Applications

  • Industrial Electrical Wiring Enclosures
  • Commercial Panel and Junction Installations
  • Protective Housing for Splices and Terminations
  • Plant Floor and Facility Electrical Distribution
  • Renovation and New Construction Electrical Work

Why Hoffman?

Hoffman enclosures are built with attention to durable materials and practical, serviceable designs like the screw-cover gasketed configuration found across this size range. This construction approach supports reliable, long-term protection for the electrical connections housed inside, making it a dependable choice for electrical professionals who need enclosures that hold up to everyday industrial and commercial conditions, whether selecting the compact 12" x 12" x 6" option or the larger 18" x 18" x 6" size.

Manufacturer Resources

Product Specs

Product Type:
Screw-Cover Enclosure
Configuration:
Screw-Cover, Gasketed
Department:
Electrical
Product Subgroup:
Enclosures
list_batch:
HOF-20260924
Product Material:
Steel
Product Group:
Boxes & Enclosures

Hoffman A12126GSC – Frequently Asked Questions

1) What sizes does the Hoffman gasketed screw-cover steel junction box come in?
Two sizes are offered: 12 x 12 x 6 inches (MPN A12126GSC) and 18 x 18 x 6 inches (MPN A18186GSC). Both share the same 6 inch depth, so the choice comes down to the face area you need for conduit entries, terminal blocks, and splice room, not how far the box stands off the wall.
2) Is a screw-cover box the right choice, or should I use a hinged-cover enclosure?
A screw-cover box like this Hoffman unit is meant for junction and splice points you open rarely, during installation, termination, or occasional maintenance. The cover comes fully off, so you need clear space in front of it and somewhere to set the cover and its screws. If the box houses controls, relays, or anything a technician opens routinely, a hinged-cover enclosure is the better pick because the door stays captive and reseals faster.
3) Will this Hoffman junction box hold up in a dusty or damp plant area?
The gasket seals the cover-to-body joint, which cuts dust, dirt, and moisture entry into the wiring cavity, and the body is steel for mechanical protection of the conductors and splices inside. That suits plant floors, back-of-house commercial spaces, and general facility distribution. It is not a submersion or washdown rating claim, so for hosedown or corrosive areas specify an enclosure selected for that duty.
4) Does this Hoffman enclosure come with conduit holes already punched?
No knockouts or conduit openings are called out for this screw-cover gasketed family. Plan on laying out and punching your own entries in the field to match your conduit runs, and treat each penetration with the appropriate fitting and seal if you want to preserve the gasketed cover's dust and moisture protection.
5) I need to standardize junction boxes across a facility. Can I run both sizes of this Hoffman box on the same spec?
Yes. Both the 12 x 12 x 6 and the 18 x 18 x 6 are the same product family, same steel body and same screw-cover gasketed configuration, so they look and service the same way across a building. Use the 12 inch for straightforward pull and splice points and the 18 inch where you are landing terminal blocks or several large conduits on one face.
6) Is a steel junction box a problem outdoors or in a corrosive area?
This Hoffman box is steel, which gives strong mechanical protection but is the wrong material choice for salt air, chemical exposure, or wet outdoor duty where corrosion is the controlling factor. For those locations specify a stainless steel or non-metallic enclosure instead. Indoors on a plant floor or in commercial back-of-house, steel is the normal choice.
7) What is the Hoffman part number for the 18 inch gasketed screw-cover junction box?
The 18 x 18 x 6 inch version is Hoffman A18186GSC. Its smaller companion, the 12 x 12 x 6 inch, is A12126GSC. The GSC suffix on both is the gasketed screw-cover configuration, so if you are matching an existing box on site, check that the cover is screw-secured with a gasket rather than hinged before you order.
8) Can I mount a 12 x 12 x 6 steel junction box on its side or on the ceiling?
The 12 x 12 x 6 inch box is square on the face, so it mounts in any rotation without changing the footprint. One point worth planning: a screw-cover is fully removable, so on an overhead or inverted mount you are supporting the cover and loose screws by hand while reinstalling. Orient the box so the cover comes off toward working space wherever you can.
How fast can I get the Hoffman A12126GSC 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 Hoffman A12126GSC come with a warranty?
Absolutely. The Hoffman A12126GSC 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 Hoffman A12126GSC?
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 Hoffman A12126GSC from ZenSupply?
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