Dormakaba MOD TH Modular Door ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$232.00
$148.15
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Dormakaba MOD TH Modular Door Closer Arm with Track Hold Open for TH, JTH, and FTH Configurations

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Model: MOD TH 689

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

$232.00
$148.15
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Dormakaba MOD TH Modular Door Closer Arm with Track Hold Open for TH, JTH, and FTH Configurations

The Dormakaba MOD TH is a commercial-grade modular door closer arm designed to provide reliable track hold-open functionality. Compatible with TH, JTH, and FTH arm configurations, this replacement part integrates seamlessly into Dormakaba's modular closer system, offering installers and facility managers a dependable solution for doors that require a hold-open position on the track. Engineered for commercial applications, this arm supports the performance standards expected of Dormakaba door closer hardware.

Key Features

  • Track Hold Open Functionality: Designed specifically for TH, JTH, and FTH arm configurations, allowing doors to be held open at a designated position along the track for convenient, hands-free access.
  • Modular Design: Part of Dormakaba's modular closer arm system, enabling straightforward replacement and compatibility within existing Dormakaba door closer installations.
  • Commercial-Grade Construction: Built to the performance and durability standards expected in commercial environments, including offices, institutions, and high-traffic facilities.
  • Replacement Part Compatibility: Serves as a direct replacement component for Dormakaba door closer assemblies utilizing TH, JTH, or FTH track hold-open arm styles.
  • Versatile Configuration Support: Supports multiple arm type designations, TH, JTH, and FTH, providing flexibility across a range of Dormakaba closer installations.

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 TH
  • Features: Dorma Door Closer Parts & Accessories

Typical Applications

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

Why Dormakaba MOD TH?

Dormakaba door closer arm components are engineered to maintain the performance integrity of the original closer installation, delivering the consistent operation that commercial facilities demand. The MOD TH arm's modular construction simplifies replacement and ensures compatibility across TH, JTH, and FTH configurations, making it a practical and reliable choice for maintenance professionals and contractors working with Dormakaba closer systems.

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 TH
Features:
Dorma Door Closer Parts & Accessories

Dormakaba MOD TH 689 – Frequently Asked Questions

1) What is the Dormakaba MOD TH arm and what does it do on a door closer?
The MOD TH is a modular closer arm with track hold-open. Instead of a standard regular arm that just closes the door, this arm runs in a track and holds the door open at a set point on that track for hands-free passage. It is sold as a replacement component for Dormakaba closer assemblies rather than a complete closer.
2) Will the MOD TH arm work with a TH, JTH, or FTH Dormakaba closer?
All three. The MOD TH is built for TH, JTH, and FTH arm configurations, so it serves as the direct replacement arm on Dormakaba closer assemblies using any of those track hold-open styles.
3) Can I use this arm on a non-Dormakaba closer like a LCN or Norton?
No. The MOD TH is part of Dormakaba's modular closer arm system and is specified as a replacement for Dormakaba closer assemblies with TH, JTH, or FTH arms. It is not offered as a cross-brand retrofit arm, so match it to a Dormakaba closer body.
4) What finishes does the Dormakaba MOD TH closer arm come in?
Three finishes: 689 aluminum, 693 black, and 695 dark bronze. If you are matching other openings in a building, 689 is the usual painted aluminum to pair with clear anodized storefront, and 695 dark bronze matches dark bronze frames.
5) Is a track hold-open arm the right choice, or should I use a regular arm closer?
Pick track hold-open when the door needs to stay open at a fixed point, for loading, deliveries, classroom propping, or ADA-style hands-free passage. A regular or standard arm is the choice if the door must always self-close, which is what any fire-rated or smoke-barrier opening requires. On those openings a mechanical hold-open arm is not acceptable.
6) I only need the arm, not a whole new closer. Does this cover that?
That is exactly what it is. The MOD TH is the arm assembly on its own, catalogued as a replacement part for Dormakaba closers, so you can swap a damaged or worn track hold-open arm while keeping the existing closer body on the door.
7) Is the MOD TH arm rated for high-traffic commercial doors?
Yes, it is a commercial-grade part, listed for commercial rather than residential use, and Dormakaba positions it for offices, schools, healthcare, retail, warehouse, multi-tenant residential, and government buildings.
How fast can I get the Dormakaba MOD TH 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 TH 689 come with a warranty?
Absolutely. The Dormakaba MOD TH 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 TH 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 TH 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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