Learn how to wire an auto transfer switch with a comprehensive diagram. Ensure a seamless transition between utility power and backup generator power in case of outages. Find step-by-step instructions and helpful tips to complete the wiring process.. 2 Simple Automatic Transfer Switch (ATS) Circuits Last Updated on May 21, 2026 by Swagatam 107 Comments In this article we investigate an ATS circuit for initiating an automatic changeover from mains supply to generator supply through many intermediate transfer stages which involves activating the fuel valve, choke valve and the generator starter.
Automatic transfer switch - ATS An automatic transfer switch is defined as "self-acting equipment for transferring one or more load conductor connections from one power source to another". The automatic transfer switch is the most common means of transferring critical loads to the emergency / standby power supply.. Here, in this article, we are going to see the Single Phase ATS or Automatic Transfer Switch Wiring Diagram and Connection Procedure. An Automatic Transfer Switch (ATS) is a device used to automatically transfer electrical load between two power sources in the event of a power outage or when the primary source fails.