China 50A Rectifier for 48V Telecom Power System

50A rectifier for 48V telecom power system

• Compact structure, high power density of 30W/in3 ;
• Constant current output available within output voltage 42-54V;
• Constant power output available within output voltage 54-58V ;
• Output voltage adjustable within 42-58Vdc
Default voltage: 53.5V;
• Wide operating temp. range: -33~+55°C
• Extended operating temp. range: +55~+65°C
• Power factor correction: ≥0.99
• RS485 communication port
• Input under-voltage protection
• Input over-voltage protection
• Output over-voltage protection
• Output over-current protection

48V Distributed power system
Ethernet
Exchange
LAN, WAN
Server
Indoor wireless network
Telecom equipment


• Over temperature alarm and protection
• Paralleled work available via current sharing bus
• Remote start up/shutdown
• Hot -swappable
• UL 60950, CSAC22.2 60950-00,
VDE0805 and IEC60950 compliance
• CE mark meets directives of 73/23/EEC
and 93/68/EEC
• High efficiency up to 93%

InputParameterMin.TypMax.UnitRemarksInput Voltage Range90110/220290Vac Input Frequency4550/6065HzRated loadInput current 18.5A Input inrush current 20A Power Factor0.99Rated input/rated load

OutputParameterMin.Typ.Max.UnitRemarksOutput Voltage Range4253.558VdcAdjustable via the monitoring module (No load)Output Current Range0 50A154~290V ac Input0 22A90~153V ac InputOutput Efficiency92 %220V AC Input (220Vac input, rated output voltage, 25% rated load current above, efficiency up to max. 93% )86 %110V AC InputOutput Power 2900WInput: 200-240Vac; Output: 53.5Vdc
1200WInput: 115-130Vac; Output: 53.5Vdc;Regulation ±1% Weighted Psophometric Noise 2mV Wide Frequency Noise Voltage 50mV(3.4KHz~150KHz) 20(150KHz~30MHz)Ripple (Vp-p) 200mVRated input voltage & load, with 0.1uF film capacitor and 10uF high frequency electrolyte capacitor, oscilloscope band width of 20MHz.

Environmental Requirements ParametersMinTyp.MaxUnitRemarkOperating temp-25 55°C Transportation temp-40 -70°C Storage temp storage temperature-40 70°C Humidity5 95%Relative humidity, no condensingAltitude0 4000mFor operation at 3000-4000m, the operation temperature is derated by 1°C per 200m.Acoustic noise 55 dB CoolingFan cooling; Front-in & rear-out; the fan locates at front side and have the function of temperature control & speed adjustment

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