The ABB SS822 is a Power Voting Unit.
Function:
Selects the most reliable power source from two available 24V DC inputs.
Provides a single 24V DC output to the connected equipment.
Monitors the voltage and current on each input.
Features:
Dual 24V DC 20A inputs.
Single 24V DC 20A output.
Each power input is independently supervised for voltage and current.
Automatically switches to the most reliable power source in case of failure.
Provides visual indication of the active power source through LEDs.
