The T-30 30 Amp Transfer Switch from WFCO is designed to provide the automatic transfer of power between the shore power and your generator. Specifications Voltage: 120V Amps: 30A As the long-standing leader in product performance, quality, and value, WFCO Technologies continues to develop and improve customer focused technology and solutions that enhance the overall RV experience that align with the needs of the RV manufacturers, dealers and end users. WFCO Technologies is committed to simplifying, enhancing, and optimizing every RV owner’s experience through advanced power technology and proven support. Warning: Product may contain materials cautioned by California Proposition 65 WFCO Since 1976, WFCO has been at the forefront of the trends in the RV power supply industry, continuing to innovate the power conversions products that are preferred more than 4 -to-1 by RV manufacturers within the industry. This commitment and passion to continuous improvement and forward thinking has been the catalyst for this new transformational phase of the company.