The Danfoss 130B9071 90W APU SMPS Power Supply Board 600V is a reliable switch-mode power supply (SMPS) board designed to deliver stable and efficient power to compatible HVAC control systems and variable frequency drives (VFDs). It converts incoming electrical power into regulated DC voltage required for internal control circuits, ensuring consistent system operation and dependable p... https://www.partshnc.com/130b9071-danfoss-apu-smps-pwr-supply-90w-600v