ACSI 1550K-MDT Electric Motor ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$780.00
$538.26
ACSI ACSI 1550K-MDT Electric Motor Latch Retraction Modification/Kit for Hager 4500, 4600, PDQ 6200 and Dormakaba QED100, QED200, QED300 1550K-MDT

ACSI 1550K-MDT Electric Motor Latch Retraction Modification/Kit for Hager 4500, 4600, PDQ 6200 and Dormakaba QED100, QED200, QED300

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Model: 1550K-MDT
From the 1500 Series Collection

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

$780.00
$538.26
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ACSI 1550K-MDT ELECTRIC MOTOR LATCH RETRACTION MODIFICATION/KIT FOR HAGER 4500, 4600; PDQ 6200; STANLEY COMMERCIAL HARDWARE QED100, QED200, QED300 OVERVIEW

1550K-MDT Electric Motor Latch Retraction Modification/Kit for Hager 4500, 4600; PDQ 6200; Stanley Commercial Hardware QED100, QED200, QED300. Motorized Latch Retraction/Dogging Kits for Hager 4500, 4600; PDQ 6200; Stanley Commercial Hardware QED100, QED200, QED300 Series Exit Devices.

You supply the exit device and ACSI supplies high quality UL Listed modifications to a wide range of manufacturers’ exit devices. ACSI engineers and technicians are available to provide system design, wiring diagrams, and a variety of technical services.

Buy the ACSI 1550K-MDT Electric Motor Latch Retraction Modification/Kit for Hager 4500, 4600; PDQ 6200; Stanley Commercial Hardware QED100, QED200, QED300 for easy installation and dependable door hardware solution.

ACSI 1550K-MDT ELECTRIC MOTOR LATCH RETRACTION MODIFICATION/KIT FOR HAGER 4500, 4600; PDQ 6200; STANLEY COMMERCIAL HARDWARE QED100, QED200, QED300 PRODUCT FEATURES

  • Simultaneous electric latch retraction and dogging (push bar depressed)
  • UL Listed for both panic and fire exit hardware
  • Available for mortise, rim, concealed and surface vertical rod exit devices
  • Field or factory installed
  • Quiet operation
  • Continuous duty rated
  • Low power consumption
  • 24VDC operation
    -ACSI Series 1400 power supplies recommended
  • Interface with life-safety systems
  • Non-polarized leads
  • On-board diagnostic LEDs
  • Automatic retry

ACSI ELECTRIC MOTOR LATCH RETRACTION MODIFICATION/KIT COLLECTION

ACSI 1550K-MDV Electric Motor Latch Retraction Modification/Kit for Von Duprin 33A/35A, 98/99
ACSI 1550K-MDV22 Electric Motor Latch Retraction Modification/Kit for Von Duprin 22
ACSI 1550K-MDC Electric Motor Latch Retraction Modification/Kit for Corbin Russwin ED4000, ED5000; Yale 7000
ACSI 1550K-MDD Electric Motor Latch Retraction Modification/Kit for Dorma 9000
ACSI 1550K-MDT Electric Motor Latch Retraction Modification/Kit for Hager 4500, 4600; PDQ 6200; Stanley Commercial Hardware QED100, QED200, QED300
ACSI 1550K-MDS Electric Motor Latch Retraction Modification/Kit for Sargent 80; Arrow 1000, 3000, 4000
ACSI 1550K-MDP Electric Motor Latch Retraction Modification/Kit for Precision 2000, 5000
ACSI 1550K-MDF Electric Motor Latch Retraction Modification/Kit for Falcon 24, 25
ACSI 1550K-MDH Electric Motor Latch Retraction Modification/Kit for Design Hardware 1000
ACSI 1550K-MDX Electric Motor Latch Retraction Modification/Kit for Dorex 9500
ACSI 1550K-MDO Electric Motor Latch Retraction Modification/Kit for Falcon 1690, 1790
ACSI 1550K-VD Electric Solenoid Latch Retraction Kit for Von Duprin 33/35 and 98/99 Series Exit Devices

Product Specs

Subcategory:
Electric Motor Latch Retraction
Series:
1500 Series
Collection:
1500 Series
Product Type:
Electric Motor Latch Retraction Kits
Compatibility:
Hager 4500, 4600; PDQ 6200; Stanley Commercial Hardware QED100, QED200, QED300
Warranty:
1 Year
Product Group:
Electronic Access Controls
Product Subgroup:
Parts and Accessories
Electronic:
Yes
Commercial/Residential:
Commercial
Lock Function:
Part/Component
Parts and Accessories Type:
Replacement Parts
Product Attribute:
Parts and Accessories
Product Function:
Part/Component
Electrical Configuration:
Motorized Latch Retraction
Product Category:
Electronic Access Controls
Department:
Door Hardware

ACSI 1550K-MDT – Frequently Asked Questions

1) Does the ACSI 1550K-MDT kit come with an exit device, or do I supply my own?
You supply the exit device. The 1550K-MDT is a modification kit only, and ACSI performs or supplies the modification for Hager 4500 and 4600, PDQ 6200, and QED100, QED200 and QED300 exit devices. Order the panic device separately from its own manufacturer, then have this kit installed in it. It can be installed in the field or done at the factory.
2) Which exit devices will the ACSI 1550K-MDT motor latch retraction kit fit?
The 1550K-MDT is cut for Hager 4500 and 4600 Series, PDQ 6200 Series, and QED100, QED200 and QED300 Series exit devices. Nothing else. ACSI builds a different suffix for every other brand, so if the door has a Von Duprin 33A/35A or 98/99 the part is the 1550K-MDV, Von Duprin 22 is the 1550K-MDV22, Corbin Russwin ED4000/ED5000 and Yale 7000 is the 1550K-MDC, Sargent 80 and Arrow 1000/3000/4000 is the 1550K-MDS, Precision 2000/5000 is the 1550K-MDP, Falcon 24/25 is the 1550K-MDF, Falcon 1690/1790 is the 1550K-MDO, Dorma 9000 is the 1550K-MDD, Design Hardware 1000 is the 1550K-MDH, and Dorex 9500 is the 1550K-MDX. Identify the device on the door before you order the suffix.
3) What power supply and voltage does the ACSI 1550K motor latch retraction kit need?
24VDC, continuous duty rated, with low power consumption. ACSI recommends its own Series 1400 power supplies to run it. The leads are non-polarized, so you are not chasing polarity at the transfer hinge or door loop during hookup.
4) Can I use a motorized latch retraction kit on a fire rated exit device?
Yes for the ACSI 1550K motor latch retraction modification, which is UL Listed for both panic hardware and fire exit hardware. That matters because electric dogging is not permitted on fire doors unless the retraction hardware carries the fire exit listing, and mechanical dogging never is. The kit also interfaces with life-safety systems so the latches drop back in on alarm.
5) I already have Hager 4500 panic devices installed. Can they be converted to electric latch retraction without replacing them?
That is exactly what the ACSI 1550K-MDT is for. It is a modification to the existing Hager 4500 or 4600, PDQ 6200 or QED100/200/300 device rather than a replacement device, and it can be installed in the field, so the existing bars, trim and door prep stay. For a property manager standardizing a building, that keeps the openings matching while adding remote release on the ones that need it.
6) What is the difference between electric latch retraction and electric dogging on an exit device?
With the ACSI 1550K modification you get both at once: energizing the motor pulls the latch back and holds the push bar depressed, so the door is push-pull free during business hours and re-latches when power drops or the access control releases it. Electric latch retraction alone just clears the latch for a remote release or card read. Because the 1550K does the dogging electrically rather than with an Allen key, it can be scheduled from the access control system and it works on fire rated openings where mechanical dogging is prohibited.
7) Will the 1550K-MDT work on a mortise or vertical rod exit device, or only rim?
The ACSI 1550K motor latch retraction modification is made for mortise, rim, concealed vertical rod and surface vertical rod exit devices. The -MDT suffix specifically covers the Hager 4500 and 4600, PDQ 6200 and QED100/200/300 families, so tell your supplier which chassis type in that family is on the door.
8) Is the ACSI 1550K-MDT noisy enough to be a problem in a hotel corridor or a library?
It is a motor driven retraction, described as quiet operation, which is the reason integrators choose motorized over solenoid retraction in occupied lobbies, guest floors and healthcare corridors. Solenoid kits, like ACSI's 1550K-VD for Von Duprin 33/35 and 98/99, snap loudly on every actuation.
9) How do I troubleshoot an ACSI 1550K latch retraction kit that is not pulling the latch?
The board carries on-board diagnostic LEDs, and it has automatic retry built in, so a single failed pull is re-attempted rather than leaving the latch hung. Start at the LEDs, then confirm 24VDC is landing at the device; the leads are non-polarized so reversed wiring is not the cause. ACSI engineers and technicians provide system design, wiring diagrams and technical support on these modifications.
10) Is the ACSI 1550K-MDT rated for commercial use?
Commercial, and continuous duty rated, meaning the motor can hold the latch retracted and the bar dogged through a full business day rather than for momentary releases only. That is the mode most storefront, school and office main entries run in.
How fast can I get the ACSI 1550K-MDT 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 ACSI 1550K-MDT come with a warranty?
Absolutely. The ACSI 1550K-MDT 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 ACSI 1550K-MDT?
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 ACSI 1550K-MDT 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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