What is a Manual Transfer Switch?
A manual transfer switch (MTS) is a safe way to connect a portable generator to a home, preventing dangerous backfeeding or back feeding into utility lines and allowing users to manage loads without overloading the generator. An MTS requires a Power Inlet Box (PIB) and works only with certain portable generators, not automatic standby units. This article explains how manual transfer switches operate, how they differ from automatic transfer switches, and how to choose the right model by amperage and circuits. It also covers safe installation, why backfeeding a panel is illegal and unsafe, and how an MTS ensures the home runs on either utility or generator power but never both. Customers searching for “manual transfer switch hookup,” “generator backfeed prevention,” “manual generator power switch,” “MTS installation,” or asking “can I backfeed with my generator” will find clear guidance here.