Dorma 780915180 Retrofit Motorized Latch Retraction (MLR) Kit

The Dorma 780915180 is a genuine OEM Motorized Latch Retraction (MLR) Retrofit Kit designed to upgrade existing Dorma 9000 Series Exit Devices to electrified operation. Unlike older solenoid-driven models, this motorized assembly provides a whisper-quiet, high-torque retraction of the latchbolt, making it the ideal choice for healthcare, library, and office environments where noise reduction is critical. This kit is fully backwards compatible, allowing facility managers to modernize legacy 9000 series hardware without replacing the entire exit device.

Institutional Grade Features

• Advanced Motor Technology: Replaces loud, power-hungry solenoids with a precision motor that offers smoother operation and significantly lower current draw.
• Backwards Compatibility: Specifically engineered to fit into existing Dorma 9000 series rails, facilitating an easy field upgrade to electronic access control.
  
• Whisper-Quiet Operation: Eliminates the "clack" associated with traditional electric panic bars, providing a silent solution for noise-sensitive corridors.
  
• On-Board Diagnostics: Features intelligent electronics that can detect obstructions, ensuring the motor doesn't burn out if the latchbolt [link] is bound or blocked.
• Low Power Consumption: Operates efficiently on standard 24VDC power supplies, allowing for longer wire runs and more devices per power source.

Technical Specifications

• Manufacturer: Dorma (dormakaba)
• Part Number: 780915180
• Function: Motorized Latch Retraction (MLR / ELR)
• Voltage: 24VDC
• Compatible Series: Dorma 9000 Series (Rim, Surface Vertical Rod, Mortise)
  
• Kit Includes: Motor assembly, mounting hardware, and specialized internal connectors.

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