DynaLock 2866 Accessory, Armat...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$58.00
$49.58
DynaLock DynaLock 2866 Accessory, Armature Extension, 6”, 2800 Series DYK-2866

DynaLock 2866 Accessory, Armature Extension, 6”, 2800 Series

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Model: 2866

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

$58.00
$49.58
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DynaLock 2800 Series Electromagnetic Door Holders

Model 2866 Accessory, Armature Extension, 6”

DynaLock 2800 Series Electromagnetic Door Holders are designed to hold self-closing fire or smoke barrier doors open until automatically released by fire alarm, smoke detection, or sprinkler systems. They can also be manually controlled wherever instant closing of doors is required for safety or convenience. Each door holder assembly consists of a floor or wall mounted heavy-duty electromagnet, a selfadjusting and pivoting armature, and all necessary mounting hardware. All models are field selectable to operate on 12 VDC, 24 VAC/VDC, or 120 VAC input voltage. Convenient screw terminals are provided for field hook-up. All holder models are UL listed. Optional Extension rods are available, to extend the armature projection, for installations where a wide standoff distance between the electromagnet and armature mounting locations exist. DynaLock 2800 Door Holders each provide 30-45 lbs. of holding force, allowing manual door closure when electromagnets are energized.

Standard Features
• 30-45 Lbs. holding force per door.
• Low power consumption conserves energy, reduces operating costs and extends battery stand-by time.
• Tri-Voltage: 12 VDC, 24 VAC/VDC or 120 VAC/60Hz selectable operation.
• Fail-Safe Operation: Electromagnet releases instantly upon power loss.
• Self-adjusting and pivoting armature assembly.
• Built-in spike suppression protects other solid state components within the system from damage when the door holder is de-energized.
• Heavy-duty die cast metal housings & faceplates. (2806 & 2810 - Stainless steel faceplates)
• Satin Aluminum US28 finish is standard. Optional sprayed finishes available. -Consult Factory- (2806 & 2810 - US32D)
• Lifetime Warranty: Made in the USA by DynaLock, with over 20 years experience in the manufacture of electronic security & access control products.

Accessories - Sold Separately

DynaLock_Corp-2022-A-Catalog_HQ_Print_20211027.pdf

http://www.dynalock.com/

Manufacturer Resources

Product Specs

Subcategory:
Door Holders
Series:
2800
Product Group:
Electronic Access Controls
Product Subgroup:
Parts and Accessories
Product Type:
Door Armature
Commercial/Residential:
Commercial
Electronic:
Yes
Holding Force:
30-45 lbs.
Warranty:
Lifetime Warranty
Parts and Accessories Type:
Replacement Parts
Product Attribute:
Parts and Accessories
Product Model:
2866
Product Finish:
Satin Aluminum (US28)
Product Category:
Door Controls
Department:
Door Hardware

DynaLock 2866 – Frequently Asked Questions

1) What is the DynaLock 2866 armature extension used for on a 2800 Series door holder?
The 2866 is a 6 inch extension rod that lengthens the armature projection on a DynaLock 2800 Series electromagnetic door holder. You use it when the wall or floor mounted electromagnet and the armature mounting point on the door end up further apart than the standard armature spans, so the door leaf can still make contact and be held open. It is an accessory sold separately from the holder itself, not a complete holder.
2) My magnetic door holder does not reach the door. Do I need an armature extension?
That is exactly the gap the 2866 fills. Where a wide standoff distance exists between the electromagnet mounting location and the armature mounting location, DynaLock offers extension rods to push the armature projection out, and the 2866 gives you 6 inches of it. Measure the standoff between the magnet face and where the armature lands on the door before you order, since the extension is a fixed 6 inch length rather than an adjustable one.
3) Does the 2866 extension change the holding force of the door holder?
Holding force comes from the electromagnet, not the rod. DynaLock 2800 Series holders provide 30 to 45 lbs of holding force per door, which allows manual door closure while the magnet is energized. The 2866 extension only moves the armature contact point further from the magnet body.
4) Is the 2866 an electrical part that needs to be wired?
No wiring. The 2866 is a mechanical extension rod for the armature side of the assembly. All the electrical work sits in the holder's electromagnet, which is field selectable for 12 VDC, 24 VAC/VDC or 120 VAC and has screw terminals for field hook-up. The extension does not add terminals, voltage selection, or load.
5) Can I use the DynaLock 2866 on a fire door hold-open in a commercial building?
That is the application the 2800 Series is built for. The holders keep self-closing fire or smoke barrier doors open until released automatically by fire alarm, smoke detection, or sprinkler systems, and they release instantly on power loss. The 2866 is a commercial-rated accessory for those assemblies, so it belongs in that same installation rather than in a residential setting.
6) What finish does the DynaLock 2866 armature extension come in?
Satin Aluminum, US28, which is the standard finish across the 2800 Series holders. That is the only finish the 2866 extension is offered in, so it matches a standard 2800 Series holder out of the box. Note that the 2806 and 2810 holders carry stainless steel faceplates in US32D, so an extension in US28 will not be an exact finish match against those two models.
7) Is the DynaLock 2866 a replacement part or an add-on option?
Both roles, in practice. DynaLock catalogs the 2866 as a replacement part for the 2800 Series, so it covers a damaged or bent extension on an existing holder, and it is also the piece you add up front when the magnet and the door armature point sit too far apart for the standard armature. Same 6 inch rod either way.
How fast can I get the DynaLock 2866 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 DynaLock 2866 come with a warranty?
Absolutely. The DynaLock 2866 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 DynaLock 2866?
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 DynaLock 2866 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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