Generac 100 Amp Legacy Automatic Generator Transfer Switch, SE Rated | Non Integrated Surge Protection Device, Service Entrance Rated, NEMA 3R Outdoor Enclosure, Standard Smart Switch A/C Module

AUTOMATIC WHOLE-HOME BACKUP ACTIVATES THE MOMENT UTILITY POWER FAILS: senses an outage, starts your compatible Generac generator, and transfers your entire panel automatically, unlike a manual interlock kit requiring hands-on action every time

OPEN TRANSITION SWITCHING PREVENTS BACKFEED INTO THE UTILITY GRID: mechanically isolates utility and generator power so both can never connect at once, protecting line workers and your wiring while your panel switches sources safely

100 AMP SERVICE RATING SUPPORTS YOUR FULL 120V AND 240V PANEL: handles up to 24000 watts across your entire home, including 240V loads like well pumps and dryers, so you back up the whole panel instead of a limited set of circuits

BUILT IN SMART AC MODULE MANAGES UP TO 4 HVAC LOADS AUTOMATICALLY: sequences up to four air conditioning or heating loads without extra hardware, and optional Smart Management Modules add circuit control as your needs grow

NEMA 3R ALUMINUM ENCLOSURE WITHSTANDS OUTDOOR WEATHER EXPOSURE: powder-coated aluminum housing resists corrosion and moisture for reliable performance whether mounted outdoors or in a garage near your main panel