Collection: Auto Transfer Switch

An automatic transfer switch (ATS) is what makes seamless backup power possible — it senses when the grid drops and switches your home or system over to battery or generator power automatically, without you needing to flip a breaker manually. This collection includes two Growatt options: the SYN 200-XH-US, a full home backup solution combining a 200A circuit breaker and smart meter for whole-panel monitoring and switching, and the standalone Autoformer + Automatic Transfer Switch (ATS), which pairs voltage regulation with automatic switching for setups that need both functions in one unit.

The 200A circuit breaker rating on the SYN 200-XH-US matches standard North American residential service panels, making it a straightforward fit for whole-home backup systems paired with a hybrid inverter and battery storage. The Autoformer + ATS combination is worth considering if your system also needs voltage correction — for example, stepping between split-phase and single-phase configurations — alongside the automatic switchover itself.