Remember: the best and easiest transfer switch is a physical interlock which costs $50 and doesn't wear out or fail, etc.: https://www.geninterlock.com/produc

Remember: the best and easiest transfer switch is a physical interlock which costs $50 and doesn't wear out or fail, etc.: https://www.geninterlock.com/product/generator-interlock-kit-square-d-qo-homeline-150-and-200-amp-panels-with-main-on-the-bottom/ https://www.geninterlock.com/product/generator-interlock-kit... No certification required. Code compliant. Idiot-proof.