We provide the SUBTECH 40 A Automatic Changeover Switch, a reliable solution for seamless power transfer between generator and mains inputs in three-phase systems. Designed for efficiency and convenience, this switch ensures automatic control, with a swift changeover time of 0.5 sec. Operating smoothly in ambient temperatures ranging from 0-65 Degree C, it offers a capacity of up to 75-80% load for long life performance. Ideal for manufacturers, exporters, suppliers, retailers, and traders seeking a dependable switch for uninterrupted power supply in critical applications.