The BAPI BA/VC350A-EZ-10 Voltage Converter is a compact HVAC/R power-conversion device that converts 24 VAC or VDC input into a regulated 10 VDC output at up to 350 mA for compatible peripheral devices. It uses half-wave rectification to provide stable DC power for sensors, room units, controllers, and building-automation components used in HVAC control systems. Its DIN-rail, snaptrac... https://www.partshnc.com/bapi-ba-vc350a-ez-10-voltage-converter-10-vdc