The the TR48 series power supply is designed to monitor power supply equipment for railway locomotives research and development, production customized power. Now scheduling some products are successfully used in railway wireless communication base stations, railway stations, railway spare power supply unit, the railway locomotives base power system, suitable for a variety of train equipment DC12V power supply equipment. 70 - 145VDC input with low standby power consumption, high power factor, small size, high efficiency, stable operation, and high reliability; overvoltage protection, overcurrent protection, short circuit protection function. FEATURES ● imports, domestic railway equipment power fully compatible. ● Electrical characteristics superior to the power of the original system. ● designed for users, the substitution of foreign railway power. ● Industrial grade design, high reliability. Enter DC110V output DC12V/4A input and the output isolation. Power board working / LED connector, open-frame structure. Natural cooling heat.