Product Description

Introduction DUMC-48/15H 1U rack intelligent switching power supply is a high and new tech product designed and manufactured according to domestic and overseas main power condition and use requirements of the industry standard. After DUMC 1U rack power system is compact and intelligent power system containing rectifier module, controller module, LVD, 1 battery and 2 loads fuses. It is specially designed for small capacity requirement. Equipped with battery, it will build up an uninterruptable AC power supply system which could be applied in the location which need small DC power supply such as telecom, mobile, transmission, access network and water, power, military, public security, railway, banks etc and other specific fields. Applications Fiber optic network Access network Transmission equipment Mobile communication Satellite communication ground station 2G, 3G base station Main Features Standard 19", 1U sub-rack, easy to be embedded into all kinds of telecom equipment. Wide AC input range 90V to 280V. PFC technique features the system high efficiency, energy-saving and up to 0.99 power factor. Intelligent fan-cooling technique brings good cooling performance, low failure rate and high reliability. Fast on-line expansion of rectifier modules enabled by hot-swap. N+1 rectifier module redundancy. Batteries monitoring and management enables backup batteries well maintained. Technical Specifications AC Input Voltage: Single phase, three wire 220VAC; 90 ~ 175V reduced power output; 176 ~ 280 full power output(full load); Frequency: 45 ~ 65Hz; Power Factor: = 0.99 Efficiency: = 90%, Rated; Protection: Soft start; Surge protection; Input/Output circuit breaker; Short circuit proof; Temperature sensor to shut down if overheats; DC Output Voltage: -48V(nominal); Voltage Range: -42V ~ -57.6V; Current 15Ato 30A (two modules maximum) with DZY-48/15H rectifiers; Peak-peak noise: = 200mV; Psophometric noise: = 2.0mV Audible noise: = 55dBDC Controller Model: DKD39; LED indicators; RS232 interface; Battery management: Temp. compensation; Battery disconnect; Alarm functions: Load fuse alarm; Rectifier fail; Battery connection; LVD operated; Low output voltage; High output voltage; Fan fail; Battery capacity; Temperature alarm Dry contacts: 4 error alarm output; 5 environment value input; 1 battery temperature input Operating temp.: -5 to +55° C Storage temp.: -40 to +70° C Relative humidity: < 90%, no condensing Atmospheric pressure: 70KPa~106KPa