591811 Elevator Relay Board
Multi-relay elevator control PCB identified by the Xunda 591811 designation.
A. Product Overview
The current product image shows a green PCB with four clear relay modules, multiple plug connectors, discrete components and four corner mounting holes.
B. Visible Features
C. Selection
Match the complete 591811 board designation, PCB outline, connector layout and relay arrangement with the existing board.
D. Handling
Use antistatic handling and protect relays, connectors and the PCB from impact or contamination.
E. Installation
Disconnect power before replacement. Verify every connector position against the equipment wiring documentation.
F. Buyer FAQ
What should be matched before purchase?
Match the 591811 designation, board outline, relay count and connector layout.
Are connector pin functions provided here?
Use the equipment wiring documentation for pin assignments.
How should the board be handled?
Use antistatic precautions and protect the relays and connectors from mechanical damage.
