The Generac RXSW150A3 is a 150‑amp, service‑rated automatic transfer switch engineered to deliver seamless, reliable switching between utility and standby generator power for whole‑home residential applications. Designed for 120/240‑volt single‑phase electrical systems, this switch continuously monitors incoming utility power and automatically transfers the home’s electrical load to generator power the moment an outage is detected. When utility service returns, the RXSW150A3 safely restores normal operation without requiring homeowner intervention.
Built with a durable NEMA 3R enclosure, the RXSW150A3 is suitable for both indoor and outdoor installation, offering flexibility across a wide range of residential layouts. Its service‑rated design incorporates the required disconnect functionality, helping installers meet NEC emergency disconnect requirements while reducing the need for additional external components.
The RXSW150A3 integrates cleanly with Generac’s air‑cooled and liquid‑cooled standby generators, supporting intelligent load management for optimized performance during high‑demand conditions. Heavy‑duty contactors and robust electronic controls ensure long‑term reliability and consistent switching performance in demanding environments.
Ideal for homeowners seeking dependable whole‑home backup, the Generac RXSW150A3 provides a clean, code‑compliant, and installer‑friendly solution that delivers automatic, uninterrupted power transfer when it matters most.
We service and install all types of HVAC heating and cooling equipment throughout Long Island, including (but not limited to) this coverage area:
Nassau County: Oyster Bay, Hempstead, North Hempstead, Glen Cove, Long Beach, Freeport, Valley Stream, Garden City, Great Neck, Mineola, Hicksville, Levittown, Massapequa, Bethpage, Plainview, Syosset, Jericho, Westbury, Rockville Centre, Farmingdale
Suffolk County: Huntington, Babylon, Islip, Smithtown, Brookhaven, Riverhead, Shelter Island, Southold, Southampton, East Hampton, Commack, Deer Park, Lindenhurst, Bay Shore, Brentwood, Central Islip, Hauppauge, Centereach, Selden, Medford, Patchogue, Shirley
Contact us today at (631) 779-3196