The Siemens Industrial Controls MT0050A Transformer is a reliable 50VA control transformer designed to step down 240/480V input to a safe 120V output for HVAC control circuits. It operates by using electromagnetic induction to provide stable, isolated low-voltage power for system components. Commonly used in air handlers, rooftop units, furnaces, and control panels, this transformer e... https://www.partshnc.com/75va-trans-240480-120v