Electrify compatible Von Duprin 33A/35A and 98/99 Series exit devices with the ACSI 1550K-MDV Motorized Latch Retraction Kit.

The 1550K-MDV provides quiet 24VDC motorized latch retraction and electric dogging for access control, automatic door operators, scheduled unlocking, and remote-release applications.

Key Features

• Genuine ACSI

• Model 1550K-MDV

• Compatible with Von Duprin 33A / 35A

• Compatible with Von Duprin 98 / 99

• 24VDC operation

• Motorized latch retraction

• Simultaneous electric dogging

• Continuous-duty rated

• Quiet operation

• Low power consumption

• Automatic retry

• On-board diagnostic LEDs

• Non-polarized leads

• Field or factory installation

• UL listed for compatible panic and fire exit hardware

• Exit device sold separately

Product Specifications

Brand: ACSI
Model: 1550K-MDV
Series: 1550K-MD
Compatibility: Von Duprin 33A/35A, 98/99
Voltage: 24VDC
Function: Motorized Latch Retraction / Dogging
Duty: Continuous
Installation: Field or Factory

• Rim, mortise, SVR, or CVR configuration

• Device length

• Existing exit-device configuration

• 24VDC power supply capacity

• Wire gauge and distance

• Access-control sequence

• Fire-rated or panic-only opening

• Automatic operator requirements

Important

1550K-MDD = DORMA 9000 Series

The MDD suffix is manufacturer-specific and should not be treated as interchangeable with the MDC, MDT, MDV, or other ACSI 1550K-MD kits.