ACSI 1550K-MDS Electric Motor Latch Retraction Kit for Sargent 80, Arrow 1000, 3000, 4000

ACSI 1550K-MDS ELECTRIC MOTOR LATCH RETRACTION MODIFICATION / KIT

for Sargent 80; Arrow 1000, 3000, 4000

The ACSI 1550K-MDS is part of the widely trusted 1550K Series of motorized electric latch retraction kits, engineered specifically for Sargent 80 and Arrow 1000, 3000, and 4000 series exit devices. Designed for reliability and performance, this modification provides simultaneous latch retraction and dogging in one integrated system.

Built to UL standards, the 1550K-MDS supports secure, electrified egress across commercial, institutional, and high-traffic facilities. Whether field- or factory-installed, this 1550K solution brings convenience, low power consumption, and consistent operation to your access control strategy.

Buy the ACSI 1550K-MDS Electric Motor Latch Retraction Kit for streamlined integration and a dependable hardware solution tailored to Sargent and Arrow exit devices.

Key Product Features:

• Simultaneous electric latch retraction and dogging (push bar depressed)

• UL Listed for panic and fire exit applications

• Compatible with mortise, rim, concealed, and surface vertical rod configurations

• Field or factory installation options

• Quiet operation, continuous duty rated

• Low power consumption (24VDC operation)

• On-board diagnostic LEDs, automatic retry

• Non-polarized leads

• Interfaces with life-safety and alarm systems

• Recommended with ACSI Series 1400 power supplies

Part of the ACSI 1550K Electric Latch Retraction Collection:

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

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

• 1550K-MDS – Sargent 80; Arrow 1000, 3000, 4000

• 1550K-MDP / MDF / MDD / MDO / MDX / MDT / MDH – For Precision, Falcon, Dorma, Dorex, Hager, and more

• 1550K-VD – Electric Solenoid Latch Kit for Von Duprin

The 1550K Series continues to set the industry standard for reliable retrofit and factory-installed electric latch retraction modifications.