Collection: Automatic Transfer Switches

Automatic transfer switches (ATS) for standby power. An ATS monitors your mains supply, starts the generator and switches your circuits over the moment an outage hits, then transfers back and shuts the generator down once mains power returns. The GT series pairs with auto-start generators in the 5 to 22kVA and 23 to 43kVA bands, and the GATSI series suits three phase sets from 44 to 66kVA and 125 to 180kVA. A transfer switch must match its generator on phase and kVA band, so check the pairing guidance on each listing, or contact us with your generator model and we'll confirm the right switch.