30 Amp Auto Transfer Switch Actual Item may not be the same as the one pictured Total safety and convenience for power line transfer. The automatic transfer switch – “A.T.S.” – provides unmatched safety and convenience for power service selection. A.T.S. automatically switches from shoreline to generator with a simple flick of the generator switch. No unplugging from shoreline receptacle and re-plugging into generator needed. Eliminated is the inconvenience of manually handling the bulky shoreline cord, which is especially dangerous in storm-related conditions. Quality components ensure reliable, smooth power transfer performance. Not ignition protected, generator command. UL listed. CSA certified. 120 volt, 30 amp automatic generator / shoreline transfer switch. Auto transfer switch used for 6300 series converters & Model 80 fuse panel.