50A Rectifier for 48V Telecom Power System

• Output Type: Single
• Warranty: 2 Years
• Output Power: 2900W
• Input Voltage: Full Range
• Connection Mode: Parallel Switching Power Supply
• Starting Mode: Self-excited Switching Power Supply
• Model NO.: GPR4850DR03
• Voltage Regulating Mode: Width Modulation Type
• Power Supplying System: Terminal Power Distribution Equipment
• Energy Transmission: One-way Transmission
• Modulation System: PWM
• Certification: CE, UL, RoHS, ISO, CCC
• Brand: Gold Power
• Transport Package: Carton Package
• Specification: 2U
• Trademark: GOLD POWER
• Origin: China
• HS Code: 8504401990
• Production Capacity: 6000000PCS/Year

Product Description

50A  rectifier for 48V telecom power system 

Features
   
•  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

 
Applications
 
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%







 

Input
Parameter	Min.	Typ	Max.	Unit	Remarks
Input Voltage Range	90	110/220	290	Vac
Input Frequency	45	50/60	65	Hz	Rated load
Input current			18.5	A
Input inrush current			20	A
Power Factor	0.99				Rated input/rated load

 

Output
Parameter	Min.	Typ.	Max.	Unit	Remarks
Output Voltage Range	42	53.5	58	Vdc	Adjustable via the monitoring module (No load)
Output Current Range	0		50	A	154~290V ac Input
	0		22	A	90~153V ac Input
Output Efficiency	92			%	220V AC Input (220Vac input, rated output voltage, 25% rated load current above, efficiency up to max. 93% )
	86			%	110V AC Input
Output Power			2900	W	Input: 200-240Vac; Output: 53.5Vdc
			1200	W	Input: 115-130Vac; Output: 53.5Vdc;
Regulation			±1	%
Weighted Psophometric Noise			2	mV
Wide Frequency Noise Voltage			50	mV	(3.4KHz~150KHz)
			20		(150KHz~30MHz)
Ripple (Vp-p)			200	mV	Rated input voltage & load, with 0.1uF film capacitor and 10uF high frequency electrolyte capacitor, oscilloscope band width of 20MHz.

 

Environmental Requirements
Parameters	Min	Typ.	Max	Unit	Remark
Operating temp	-25		55	°C
Transportation temp	-40		-70	°C
Storage temp storage temperature	-40		70	°C
Humidity	5		95	%	Relative humidity, no condensing
Altitude	0		4000	m	For operation at 3000-4000m, the operation temperature is derated by 1°C per 200m.
Acoustic noise		55		dB
Cooling	Fan cooling; Front-in & rear-out; the fan locates at front side and have the function of temperature control & speed adjustment

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