CEMCO Lift Battery Descent Unit Circuit Board - BDU PCB

Ensure safe elevator descent during power loss with this battery descent unit control board for select CEMCO Lift systems, commonly marked Model 3188.

This battery descent unit (BDU) control board is designed for use in select CEMCO elevator systems, providing reliable emergency operation during primary power loss. The board manages the transition to battery backup, enabling the elevator to travel to a designated landing and safely open doors.

Commonly associated with boards labeled “Model 3188,” this unit is recognized by field technicians as a direct replacement PCB for compatible CEMCO installations, though markings may vary between versions.

Built with durable electronic components including onboard relays, transformer, and fused protection, this board supports consistent performance in demanding elevator environments. Its layout and terminal configuration are designed for straightforward integration into existing control systems where battery descent functionality is required.

• Application: Battery Descent Unit (BDU) control board
• Compatibility: Select CEMCO elevator systems
• Function: Emergency power descent and door operation
• Board Marking: Commonly labeled “Model 3188”
• Components: Integrated relays, transformer, capacitors, diodes
• Protection: Onboard fused circuits
  
• Mounting: Standard PCB mounting with corner holes
• Connections: 8-connection terminal block interface

For optimal performance and safety, this component should be installed and serviced by qualified elevator professionals in accordance with applicable codes and system requirements.