The transfer switch is installed between a main panel and a sub panel. The main panel connects to the non-essential loads. The sub panel connects to the essential loads. In the event of an outage, the transfer switch will only transfer power to the essential load panel.

How much does it cost to have a transfer switch installed?

A transfer switch allows you to power any of those—and skip the extension cords. Plan on a cost of $500 to $1,500 for the switch, including installation, which usually takes less than a day.

Can generator transfer switch be installed outside?

Portable transfer switches Manual power switches can either be installed inside or outside depending on their NEMA rating. During an outage, you will need to plug the generator into the inlet box, turn on the manual transfer switch, and then turn on the portable generator.