The Nordyne 621807R 120V Primary Transformer 24V Sec 30VA is a dependable replacement component designed for Nordyne HVAC systems. It converts 120V primary voltage to a 24V secondary output, providing stable power to control boards, thermostats, and other low-voltage components. This transformer ensures safe and efficient electrical operation, reducing the risk of power fluctuations a... https://www.partshnc.com/621807r-nordyne-120v-pri-24v-sec-30va-transfor