How does an interlock switch work?

The Interlock kit will allow you to safely disconnected your panel from the utility feed and switch it over to the generator. The Interlock kit prevents the two sources from being connected at the same time.The Interlock kit allows you to safely disconnect the power panel and switch the generator that is powering through a new generator switch. The Interlock kit allows one of these power systems to operate simultaneously, preventing both sources from connecting each other.