48V DC Power System Telecom Rectifier with 60A Output Current New Made in China Universal Packing Switching Power Supply Origin
- Application:Industry, laboratory, Industrial Equipment, Machines, Battery Charging, for Telecom Equipment,Battery Charging
- Efficiency:0.92
- Protection:Short Circuit Protection, Overcurrent Protection, Overvoltage protection, Over Temperature Protection, Overloading Protection, Over Power Protection, Undervoltage Protection
- Place of Origin:Guangdong, China, Shenzhen, China (Mainland)
- Brand Name:EVS, EVS Industrial switching power supply
- Model Number:EVS4860, RM4810/RM4820/RM4830/RM4850
- Output Type:Single Phase
- Input Voltage:80-300VAC, 90~280VAC
- Output Voltage:-48Vdc
- Output Frequency:50Hz/60Hz
- Output Current:60A
- type:AC-DC, DC-DC
- Output Power:500W-2500W
- Type:Rectifier Module
- Use in:exchange room, server room,base station,data communication
Rack mount dc power supply 220Vac to 48Vdc 30A ac dc converter for sale
Features
1,ac dc converter adopts active power factor compensation technology, power factor up to 0.99.
2,AC input voltage of normal operating range as wide as 90 ~ 290V.
3,Rectifier modules adopts full bridge soft switching technology, efficiency can reach above 96%.
4,Perfect battery management: low voltage load disconnect (LVLD) and low voltage battery disconnect (LVBD) to achieve temperature compensation, automatic float control, automatic voltage regulator, battery capacity calculation, online battery test function.
5,ac dc convertere adopts no damage hot insert and pull technology, replacement time less than 1min.
6,Network design, providing a variety of communication interfaces (for example: RS485, dry contact), flexible networking can achieve local and remote monitoring, unattended. Perfect AC and DC side lightning protection design used in multi thunderstorm area.
7,Complete fault protection, fault alarm function.
8,Comprehensive operation and maintenance, and can be mounted against the wall, saving space effectively.
9,Ultra-low radiation. Adopt advanced electromagnetic compatibility design, the rectifier module can meet requirements for conducted and radiated interference of"the communication power equipment electromagnetic compatibility Limits and methods of measurement"( People's Republic of China telecommunications industry standard YD/T983).
10,Safe and reliable. System design in full compliance with safety standards EN60950 and GB4943.


1.Technical Indicators
| Input and output | ||||
| Voltage System model | Range of AC input voltage | AC input current (maximum) | DC output current (rated) | Maximum output power |
| EV4810 | 90-280Vac | 3.7A | 10A | 600W |
| EV4820 | 90-280Vac | 7.5A | 20A | 1200W |
| EV4830 | 90-280Vac | 10A | 30A | 1800W |
| EV4850 | 90-280Vac | 30A | 50A | 2700W |
2.Power system performance index
| Input | |||||
| Parameter | Min. | Rated | Max. | Unit | Note |
| Rated working voltage range | 110/220 | Vac | |||
| Input voltage range | 90 | 220 | 290 | Vac | Three-phase five-wire input phase to phase 380V / relative zero line 220VAC |
| Input frequency | 43 | 50 | 67 | Hz | |
| Battery input | 43.2 | 53.5 | 58 | Vdc | Battery pack’s positive and negative in parallel with DC output of rectifier module (polarity consistent) |
Output | |||||
| Parameter | Min. | Rated | Max. | Unit | Note |
| Output voltage range | 42 | 53.5 | 58 | Vdc | |
| Output current range (max.current) | 0 | 30 | A | Input 170 ~ 285VAC, when the input voltage is below 170VAC, output at derating manner. | |
| Regulation accuracy | ±1 | % | |||
| Load regulation | ±1 | % | |||
| Source regulation | ±1 | % | |||
| Current sharing regulation | ±5 | % | |||
| Ripple ( peak – peak value) | 200 | mv | Network 20MHztesting. | ||
| Output efficiency | 91 | 93 | % | 220Vac Input | |



