Dormakaba MOD-FH Modular Door ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$196.00
$127.29
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Dormakaba MOD-FH Modular Door Closer Arm with Friction Hold Open, Regular/Top Jamb, 0" - 4" Reveal

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Model: MOD FH 689

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

$196.00
$127.29
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Dormakaba MOD-FH Modular Door Closer Arm with Friction Hold Open, Regular/Top Jamb, 0" - 4" Reveal

The Dormakaba MOD-FH is a commercial-grade modular door closer arm engineered with a friction hold-open feature, designed for use in regular and top jamb mounting configurations. Compatible with a 0" to 4" reveal range, this replacement arm provides versatile installation flexibility for a wide variety of commercial door applications. As a genuine Dormakaba closer part, the MOD-FH integrates seamlessly with compatible Dormakaba modular door closer systems to restore and maintain proper door control performance.

Key Features

  • Friction Hold-Open Function: Integrated friction hold-open mechanism allows the door to be held at any open position without additional hardware, supporting high-traffic and accessibility-focused applications.
  • Reveal Compatibility: Accommodates 0" to 4" reveal, providing installation flexibility across a broad range of door and frame configurations.
  • Dual Mounting Support: Compatible with both regular arm and top jamb mounting orientations, allowing adaptation to varying architectural and code requirements.
  • Modular System Design: Engineered as part of Dormakaba's modular closer system, enabling straightforward replacement and component-level serviceability without full closer replacement.
  • Commercial-Grade Construction: Built to the performance standards expected in professional commercial environments, ensuring durable and reliable door control in demanding settings.
  • Genuine Dormakaba Replacement Part: Designed specifically as a replacement component for compatible Dormakaba door closer assemblies, ensuring proper fit and function.

Technical Specifications

  • Department: Door Hardware
  • Product Category: Mechanical Locks
  • Product Group: Parts and Accessories
  • Subcategory: Parts and Accessories
  • Product Subgroup: Parts and Accessories
  • Product Type: Door Closer Arms
  • Parts and Accessories Type: Replacement Parts
  • Commercial/Residential: Commercial
  • Product Model: MOD FH
  • Features: Dorma Door Closer Parts & Accessories

Typical Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Government and Municipal Buildings
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties

Why Dormakaba MOD FH?

Dormakaba door closer components are engineered to professional commercial standards, delivering reliable performance as genuine replacement parts within the Dormakaba modular closer system. The MOD-FH arm's friction hold-open capability and broad 0" to 4" reveal compatibility make it a dependable, specification-grade solution for facilities requiring consistent and compliant door control.

Manufacturer Resources

Product Specs

Department:
Door Hardware
Product Category:
Mechanical Locks
Product Group:
Parts and Accessories
Subcategory:
Parts and Accessories
Product Subgroup:
Parts and Accessories
Product Type:
Door Closer Arms
Parts and Accessories Type:
Replacement Parts
Commercial/Residential:
Commercial
Product Model:
MOD FH
Features:
Dorma Door Closer Parts & Accessories

Dormakaba MOD FH 689 – Frequently Asked Questions

1) Will the Dormakaba MOD-FH arm work with a top jamb mounted closer, or is it regular arm only?
Both. The MOD-FH arm is built for regular arm and top jamb mounting, so the same part covers a pull-side regular install and a push-side top jamb install on the frame face.
2) My frame has about a 3 inch reveal. Does the Dormakaba MOD-FH arm cover that?
Yes. The MOD-FH covers a 0 inch to 4 inch reveal, so a 3 inch reveal falls inside the range. Anything past 4 inches of reveal needs a different arm or bracket arrangement.
3) Can I replace just the arm on my Dormakaba closer instead of the whole unit?
That is the point of the MOD-FH. It is a genuine Dormakaba replacement arm for compatible Dormakaba modular closer systems, so a bent or worn arm can be swapped at the component level without pulling and replacing the closer body.
4) Will the Dormakaba MOD-FH arm fit a non-Dormakaba closer like an LCN or Norton?
No. The MOD-FH is made specifically for compatible Dormakaba modular closer assemblies. Arm-to-pinion splines and shoe geometry are brand specific, so it should not be used to repair another manufacturer's closer.
5) What does the friction hold open on this Dormakaba closer arm actually do?
The friction hold open lets the door be stopped and held at any open position within the arm's swing, using friction in the arm itself rather than a separate hold-open stop or magnet. Useful where a door needs to stay propped for deliveries, cleaning, or move-ins and then go back to normal closing.
6) What finishes does the MOD-FH friction hold open arm come in for matching existing closers in a building?
Three finishes: 689 aluminum, 693 black, and 695 dark bronze. 689 is the usual match for painted aluminum closers already on most commercial openings, with 695 for dark bronze storefront and 693 for black frames.
7) Should I use a friction hold open arm or a regular non hold open arm on a fire rated opening?
Use a plain non hold-open arm on a fire door. A friction hold open like the MOD-FH keeps the door propped mechanically, which conflicts with a fire door's requirement to self-close and latch; fire openings that need hold-open use electromagnetic hold-open tied to the alarm instead. Keep the MOD-FH for non-rated traffic doors where propping the leaf is wanted.
8) Is this arm rated for high traffic commercial doors or is it a light duty part?
It is a commercial part, not residential. The MOD-FH is specified for commercial-grade door control and is used in offices, schools, healthcare, retail, government buildings, warehouses, and multi-tenant residential.
How fast can I get the Dormakaba MOD FH 689 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 Dormakaba MOD FH 689 come with a warranty?
Absolutely. The Dormakaba MOD FH 689 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 Dormakaba MOD FH 689?
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 Dormakaba MOD FH 689 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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