Sigma Automatic Transfer Switches are electromechanical disconnectors that enable automatic transfer between two power sources. With an internal mechanical lock system, they prevent the activation of the alternate source while one of the two energy sources is active. In case the power source feeding the load is interrupted for any reason, they prevent the system from losing power by performing a transfer between the two energy sources. Sigma Automatic Transfer Switches facilitate transfer operations between different power configurations such as mains-mains, mains-generator, mains-UPS, generator-generator, etc. They are safely used in locations where power outages can cause material and immaterial damage to the workforce, production, and continuous services, including factories, plazas, shopping malls, hospitals, airports, and metro and train stations.
• Product diversity in Automatic Transfer Switches with MCB, Thermal Magnetic Switch and Motorized Load Switch;
• Automatic Transfer Switches with MCB
• Rated current up to 63A
• Protection against overcurrents at the main power supply and auxiliary power supply terminals with two MCBs having a 6kA breaking capacity.
• Reliable protection
• Easy installation and use
Automatic Transfer Switches with Thermal Magnetic Compact Switches
• Rated current up to 800A
• Protection against overcurrents at the main power supply and auxiliary power supply terminals with two MCBs having a 36kA breaking capacity.
• Protection against overvoltage and undervoltage
• Adjustable undervoltage, adjustable overvoltage, adjustable transfer delay time
• Displaying voltage and transition time information of the network and alternative source on the digital screen
• Possibility to follow the errors in the system on the LCD screen
• Easy installation and use
• Reliable protection
Automatic Transfer Switches with Motorized Load Switches