Automatic Transfer Switching ATS & AMF Emergency power is transferred automatically from one supply to another if it be a diesel generator or 2nd mains supply via one or more load circuits, either manual or motorized. When the original supply is restored, the system automatically changes back. The stand-by generator will eventually shut down after a short cooling down period. We offer a full range of automatic and manual change over switches, also known as changeover & bypass switches with sizes from 16-2500 Amps in three and four pole versions. Our changeover switches are suitable for any power supply system application requiring an uninterrupted supply of power from Diesel Generators and Petrol Generating Sets, Ups Equipment and/or Power Utilities.