I just purchased a MEP-003A at goverment auction that was used by previous owners in emergency managment department. Is like to use this generator for a whole home backup and have started looking at Automatic Transfer Switches. Ultimately I want it to automatically start, transfer, transfer back after utility is restored, then shutoff the gen after a cool down period. This is how our gens operate at work.
The one question I'm unsure of is how to size the ATS. Does it need to be sized baised on the service entrence coming into our home (400 amp) or baised on the size of the gen itself?
We have a 400 amp main panel/meter base located outside that has our HVAC breakers and a 200 amp breaker feeding an interior sub panel with the remainder of the house loads.
The one question I'm unsure of is how to size the ATS. Does it need to be sized baised on the service entrence coming into our home (400 amp) or baised on the size of the gen itself?
We have a 400 amp main panel/meter base located outside that has our HVAC breakers and a 200 amp breaker feeding an interior sub panel with the remainder of the house loads.