Original and Genuine DR-UPS40|(21? 29V 40A) For Battery controller for 24Vdc power supply system/large 40A emergency load system The DR-UPS40 is a high-current 40A DC UPS (battery control) module, used in a 24Vdc power supply system, with an external battery, which can provide a certain period of backup for the large 40A emergency load system according to the capacity of the battery. Can be installed on DIN rail TS-35/ 7.5 or 15 Parallel connection to DC BUS, Built-in battery test function 30 years of well-known standard power supply brand, supporting mass wholesale.