China 20A AC-DC Rectifier for 48V Telecom Power System Electric Power System

20A AC-DC rectifier for 48V telecom power system/electric power system

• Compact structure, high power density of 25W/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~+55ºC
• Extended operating temp. range: +55~+65ºC
• Power factor correction: ≥0.98
• RS485 communication port
• Input under-voltage protection
• Input over-voltage protection
• Output over-voltage protection
• Output over-current protection

• 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 more than 92%

AC InputParameterMin.TypMax.UnitRemarksInput Voltage Range90220280Vac Input Frequency455065HzRated loadInput Current 9A Power Factor0.99Rated input/rated load

OutputParameterMin.Typ.Max.UnitRemarks Output Voltage Range4253.558Vdc Output Current Range020 A 176~280V ac Input Regulation ±1% Weighted Psophometric Noise 2mV Wide Frequency Noise Voltage 100
30mV(3.4KHz~150KHz)
(150KHz~30MHz)Ripple (Vp-p) 200mVRated input/output, with 0.1uF film capacitor and 10uF high frequency electrolyte capacitor, oscilloscope band width of 20MHz.Output Power01200 W176-280V input0600 W90-175V inputOutput Efficiency90 92%220V AC input 85 %110V AC input

Ambient requirementsParametersMinTyp.MaxUnitRemarkOperating temp-335555°C>65ºC, auto protectionStorage tempStorage temperature-50 80°C Humidity5 95%Relative humidity, no condensingAltitude-60 4000mFor operation above 2500m (5000 ft.),
Maximum operation temperature is derated by 2°C per 305m (1000 ft.) C.-200 13000ftEarthquake rating4 Zone Acoustic noise 55 dBIn proportion to fan speed, load and ambient temperature