I recently pulled a permit and installed a 30A generator inlet and backfeed breaker w/ interlock. However, I actually would like to install a second inlet in an alternate location and be able to select from either one, as I have two different generators and they are kept in different locations on my property.
To do this safely, I need a switch that can cut off one inlet when the other is engaged; otherwise, the inlet would be live when the other one is being fed by a generator.
To do this to code, do I need to switch neutral as well as both hots? If so, where can I get a 30A triple poll, double throw switch? Leviton and the like only seem to make DPDT switches (which would be fine if I only need to switch the hots).