It is an electric knob which is centrally controlled. Wherever there are backup generators located,installation of auto changeover is a must. The purpose of this switch is, it accommodates the generator to provide temporary electric supply, when the main source faces a failure to generate the required electricity. In case, if an electricity disruption is faced the power gets automatically switched over by the auto switch. In an industry or household, where stable generators are installed, this type of switches will prove to very beneficial. Where manual intervention was required during an interrupted power supply the use of these switches are more useful, as they operate all by themselves. However, there is one flaw, these automatic models are quite expensive as they are made up of complex components, in comparison to manual models. Socomec India is a manufacturer of highly durable and reliable automatic transfer switches. The technology used in manufacturing these switches at Socomec is one of the unique one which makes it an outstanding name in the field of electrical switches.