C Type ATS Dual Power Automatic Transfer Switch AC220V Diesel Generator Controller Auto Changeover Switch Converter Key functions and benefits Automatic transfer between two power sources to maintain continuity of supply during mains failure or generator start Supports firefighting linkage and infrequent manual connection and disconnection operations Compact controller design for AC220V control circuits, suitable for integration with diesel generator systems Available in rated working currents from 16A to 630A; C type models available for 400A to 630A Three selectable operating positions: Main closing, Standby closing, and Doubleoff, allowing clear manual and automatic control modes Source overvoltage and undervoltage monitoring to support safe and timely transfers Designed to improve transfer response and conversion consistency during changeover events Technical specifications Rated working current range: 16A to 630A Control voltage: AC220V Operating positions: Main closing, Standby closing, Doubleoff Controller monitoring: source overvoltage and undervoltage detection Pollution degree: level 3 Electromagnetic compatibility: Class B public environment Storage and transport temperature: 25C to +55C, short term up to +70C within 24 hours Installation altitude: up to 2000 meters Ambient temperature for operation: 5C to +40C, 24 hour average not exceeding +35C Humidity: at +40C relative humidity not to exceed 50 percent; higher humidity allowed at lower temperatures, for example up to 90 percent at +25C; take measures for occasional condensation due to temperature changes Typical applications and use scenarios Hospital emergency power: automatic transfer from mains to diesel generator to maintain critical systems during outages Commercial buildings and shopping malls: seamless changeover to backup supply for lighting, elevators, and essential services Industrial and utility sites: integration with diesel generator sets for reliable backup power in chemical, metallurgical, and rise building installations Installation and handling notes Protect product from rain and snow during transport and storage Confirm site ambient temperature, humidity, and altitude meet the stated working conditions or specify deviations prior to installation Intended for use in locations where continuity of power is required and where firefighting linkage or controlled manual isolation may be needed This automatic transfer switch is a C type ATS solution for dual power systems requiring AC220V control and generator interfacing, offered across a wide current range to suit small to large installations.