Orbit FA-UMAB Fire Alarm Switc...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$14.05
Orbit FA-UMAB Fire Alarm Switch Box, 16 Gauge Steel

Orbit FA-UMAB Fire Alarm Switch Box, 16 Gauge Steel

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Model: FA-UMAB

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

$14.05
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Orbit FA-UMAB Fire Alarm Switch Box, 16 Gauge Steel

The Orbit FA-UMAB Fire Alarm Switch Box is a 4-Inch x 4-Inch x 3-1/2-Inch extra deep enclosure built from 16 gauge sheet steel with a fully welded body for long-term structural integrity. Designed with a built-in adapter, this switch box is purpose-built to house fire alarm switches and related life-safety components in commercial and industrial electrical systems. The extra-deep 3-1/2-Inch profile provides additional interior working room compared to standard 4-Inch square boxes, giving installers more space for wiring, splices, and device mounting without compromising the compact 4-Inch x 4-Inch footprint. As a welded steel enclosure, the FA-UMAB is engineered for durability in demanding installation environments where a rigid, non-flexing box body is required.

Key Features

  • Box Dimensions: 4-Inch x 4-Inch x 3-1/2-Inch extra deep configuration for added interior wiring capacity.
  • Durable Construction: Fabricated from 16 gauge sheet steel for a rigid, impact-resistant enclosure.
  • Welded Body: Fully welded seams eliminate weak points common to knockdown or screw-assembled boxes, delivering a solid one-piece housing.
  • Built-In Adapter: Integrated adapter simplifies mounting of the fire alarm switch, reducing the need for separate adapter hardware.
  • Extra-Deep Design: The 3-1/2-Inch depth provides additional clearance for wiring and device installation versus standard-depth boxes.
  • Compact Square Footprint: 4-Inch x 4-Inch profile fits standard fire alarm switch and device applications.

Technical Specifications

  • Material: 16 Gauge Sheet Steel
  • Body Type: Welded
  • Dimensions: 4-Inch x 4-Inch x 3-1/2-Inch (Extra Deep)
  • Adapter: Built-In

Typical Applications

  • Fire Alarm Switch Installations
  • Commercial and Industrial Life-Safety Systems
  • New Construction Electrical Rough-In
  • Retrofit and Renovation Fire Alarm Upgrades

Why Orbit?

Orbit builds the FA-UMAB from 16 gauge welded sheet steel, giving contractors and electricians a rugged, code-driven enclosure for fire alarm switch installations. The extra-deep body and built-in adapter reflect a design focused on practical field installation, helping ensure reliable performance in life-safety electrical systems.

Manufacturer Resources

Product Specs

list_batch:
ORB-20260924
Product Type:
Switch Box
Configuration:
Extra Deep with Built-In Adapter
Department:
Electrical
Product Subgroup:
Electrical Boxes
Product Material:
Sheet Steel
Product Group:
Boxes & Enclosures

Orbit FA-UMAB – Frequently Asked Questions

1) What size is the Orbit FA-UMAB fire alarm switch box, and will it fit a standard 4-inch square device opening?
The FA-UMAB measures 4 x 4 x 3-1/2 inches, so it keeps the standard 4-inch square footprint while running extra deep. If your rough-in plan or wall opening is laid out for a 4-inch square box, the face dimensions match; what changes is the depth behind the wall, which needs 3-1/2 inches of cavity clearance.
2) Do I need a separate adapter plate to mount a fire alarm switch to the Orbit FA-UMAB?
No. The FA-UMAB has the adapter built into the box, so the fire alarm switch mounts without buying a separate adapter ring. That is the main reason to pick it over a plain 4-inch square box, where you would add an adapter or device ring at install.
3) Why would I use an extra-deep box instead of a standard-depth 4-inch square for a fire alarm pull station?
Depth buys you working room. At 3-1/2 inches, the FA-UMAB gives more interior volume than a standard-depth 4-inch square for wiring, splices and the device itself, which matters when a fire alarm circuit brings several conductors into the box and the switch body takes up space behind the plate. If your cavity is shallow, or you only have a couple of conductors, a standard-depth 4-inch square is the simpler choice.
4) Is the Orbit FA-UMAB box welded or a knockdown box I have to assemble?
Welded. The FA-UMAB body is fully welded 16 gauge sheet steel, so it arrives as a one-piece housing with no screw-together seams. For a contractor that means nothing to assemble on the ladder and no corner joints to rack out of square when you set it in concrete or against steel studs.
5) Can the FA-UMAB be used on a retrofit fire alarm upgrade, or is it only for new construction rough-in?
Both. Orbit lists the FA-UMAB for new construction electrical rough-in and for retrofit and renovation fire alarm upgrades. On a retrofit the limiting factor is wall depth, since the box needs 3-1/2 inches behind the finished surface.
6) What gauge steel is the Orbit FA-UMAB, and is it heavy enough for an industrial plant install?
It is 16 gauge sheet steel, welded. That is a rigid, impact resistant body intended for commercial and industrial life-safety work, including plant and back-of-house areas where a thin knockdown box gets dented during construction.
How fast can I get the Orbit FA-UMAB 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 Orbit FA-UMAB come with a warranty?
Absolutely. The Orbit FA-UMAB 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 Orbit FA-UMAB?
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 Orbit FA-UMAB from ZenSupply?
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