ACSI 1550K-MDC Electric Motor ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$700.00
$398.20
ACSI ACSI 1550K-MDC Electric Motor Latch Retraction Modification/Kit for Corbin Russwin ED4000, ED5000; Yale 7000 1550K-MDC

ACSI 1550K-MDC Electric Motor Latch Retraction Modification/Kit for Corbin Russwin ED4000, ED5000; Yale 7000

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Model: 1550K-MDC
From the 1500 Series Collection

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

$700.00
$398.20
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ACSI 1550K-MDC ELECTRIC MOTOR LATCH RETRACTION MODIFICATION / KIT

for Corbin Russwin ED4000, ED5000 & Yale 7000

The ACSI 1550K-MDC Electric Motor Latch Retraction Kit is part of ACSI’s trusted 1550K series, engineered specifically for Corbin Russwin ED4000 / ED5000 and Yale 7000 exit devices. This 1550K MDC solution motorizes latch retraction and dogging, delivering quiet, low-power operation while meeting UL panic- and fire-exit standards.

You supply the exit device; ACSI supplies the UL-Listed modifications, plus design assistance, wiring diagrams, and technical support.

Buy the ACSI 1550K-MDC Electric Motor Latch Retraction Kit for a fast, dependable upgrade to electrified egress hardware.

Key Product Features

  • Simultaneous electric latch retraction and dogging

  • UL Listed for both panic & fire-exit hardware

  • Fits mortise, rim, concealed & surface vertical-rod devices

  • Field or factory installation options

  • Quiet, continuous-duty motor; low power draw (24 VDC)

  • Non-polarized leads, on-board diagnostic LEDs & auto-retry

  • Interfaces easily with life-safety systems

  • ACSI Series 1400 power supplies recommended

1550K Latch Retraction Kit Collection

  • 1550K-MDV / MDV22 – Von Duprin 33A/35A/98/99 & 22

  • 1550K-MDC – Corbin Russwin ED4000, ED5000; Yale 7000

  • 1550K-MDD / MDT / MDS / MDP / MDF / MDH / MDX / MDO – For Dorma, Hager, Sargent, Precision, Falcon, Design Hardware, Dorex & more

  • 1550K-VD – Solenoid kit for Von Duprin 33/35 & 98/99

Whether you need a full 1550K series retrofit or the targeted 1550K MDC kit for Corbin Russwin and Yale devices, ACSI delivers reliable, code-compliant electrification for modern access-control systems.

Product Specs

Subcategory:
Electric Motor Latch Retraction
Series:
1500 Series
Collection:
1500 Series
Product Type:
Electric Motor Latch Retraction Kits
Compatibilty:
Corbin Russwin ED4000, ED5000; Yale 7000
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
Tags:
1550k mdc, 1550k
Product Function:
Part/Component
Electrical Configuration:
Motorized Latch Retraction
Product Category:
Electronic Access Controls

ACSI 1550K-MDC – Frequently Asked Questions

1) What door hardware systems is the ACSI 1550K-MDC compatible with?
This modification kit works specifically with Corbin Russwin ED4000 and ED5000 electric mortise locks, plus Yale 7000 series locks. It converts manual latch retraction to electric motor operation.
2) How does electric motor latch retraction differ from standard solenoid operation?
Motor-driven retraction provides smoother operation and longer cycle life than solenoid systems. The motor maintains consistent force throughout the latch stroke and operates more quietly.
3) What power requirements does this modification kit need?
Verify power specifications with the manufacturer documentation. Most electric latch retraction systems require low voltage DC power, typically 12V or 24V DC supply.
4) Can this kit be installed on existing mortise locks in the field?
Yes, this is designed as a retrofit modification kit for existing compatible locks. Installation requires removing the lock from the door and following the manufacturer's conversion procedures.
5) What door thickness and weight limitations apply?
Check the original lock specifications for door thickness compatibility. Verify that door weight and swing characteristics are within the lock manufacturer's recommended limits before installing the motor kit.
6) Does this modification affect fire rating or code compliance?
Modifications to listed fire door hardware may affect ratings. Consult local code officials and verify that the motor kit installation maintains required fire door compliance and accessibility standards.
7) What tools are needed for installation?
Installation typically requires standard locksmith tools including screwdrivers, hex keys, and possibly specialized jigs. Follow the manufacturer's installation template and torque specifications exactly.
8) How is the motor kit wired to access control systems?
Wiring connects through the lock's electrical connections to the access control panel. Use proper gauge wire and follow electrical codes. Consider installing surge protection for the motor circuit.
9) What maintenance does the motor system require?
Regular inspection of electrical connections and mechanical operation is recommended. Clean contact points and lubricate moving parts per the lock manufacturer's schedule. Monitor motor performance for consistent operation.
10) Are there backup options if motor power fails?
Check if the modification maintains manual override capability. Some systems include mechanical backup operation while others require separate fail-safe planning for power outages.
11) What other ACSI modification kits are available?
ACSI offers various modification kits for different lock functions and manufacturers. Browse our door hardware section for compatible upgrade options and accessories.
How fast can I get the ACSI 1550K-MDC 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-MDC come with a warranty?
Absolutely. The ACSI 1550K-MDC 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-MDC?
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-MDC 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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