Origin China Model NumbeMax. Current 800A HUSD2 automatic transfer switch (ATS) is consisted of the device body and the automatic controller. Its frame is classified into: A united type (the device body and the auto controller are connected by a cable of 2 meters) and B segmented type (the device body and the auto controller are installed on a same metal base plate). The automatic controller is divided into three types according to its control functions: automatic change over and automatic reset (R), automatic change over and non-automatic reset (S), and power generation for power network (F). The former two is suitable for power supply system between one power network and another. The last one is suitable for the system between power network and power generation. The body consists of two HUM8 series molded case circuit breakers and electric-driven operating mechanism. The auto controller centering with a micro computerizing controlled system is good in anti-interference, stable and reliable in working, and equipped with a large liquid crystal screen, that give people a good person-to-machine dialog interface. The controller is high in intelligent control and convenient in use. This product is in accordance with the standards of IEC60898: 1995 and GB10963-1999(Requirements of Over-current Protection Circuit Breaker for Household or Other Uses).