Emerson HD4825-3 communication power supply rectifier module 48V/25A high frequency switching power supply module
Emerson HD4825-3/HD4830-3 provides the core components of the DC 48V system for power to cooperative manufacturers. Cooperative manufacturers can use this component to form a 48V DC system with a certain capacity configuration, which can be used in power plants, hydropower stations, various substations and other occasions that require communication power.
Communication power supplies HD4830-3, HD4825-3, and HD4810-3 are developed using modern power electronics and industrial control technology, built-in advanced microprocessors, and adopt comprehensive soft-switching technology. The efficiency and EMC have reached the industry's first-class level.
1. Emerson's communication power supply adopts active power factor compensation technology, with a power factor value of 0.992. The normal working range of the AC input voltage of Emerson communication power supply is as wide as 90~290V. When the voltage is as low as 170V~180V, the rectifier module will limit the power output and the return difference is less than 10V.
3. Emerson's communication power supply adopts comprehensive soft-switching technology with an efficiency of over 91%4. Emerson's communication power supply adopts non-destructive hot-swappable technology, plug and play, and the replacement time is less than 1min
5. Emerson's complete fault protection and fault alarm function of communication power supply
6. Emerson communication power supply has ultra-low radiation, safe and reliable
Working temperature: -5~45℃
Storage temperature: -40~70℃
Relative humidity: ≤90%
Input (phase) voltage: there is a "switching point" between 170~180V, when it is in the range of "switching point" to 290V, it can output 58V/30A, when it is in the range of 90~"switching point" it can output 58V/15A
Input grid frequency: 45~65Hz
Start-up impulse current: ≤15A
Maximum static voltage without working: 380VAC, long-term withstand
Output DC voltage: 42~58V (continuous adjustment through monitoring module)
Output DC current: 0~30A (maximum output 33A)
Stabilization accuracy ≤±0.6%
Load regulation rate ≤±0.5%
Voltage adjustment rate ≤±0.1%
|Output current limiting characteristics
||Stepless current limit, continuously adjustable between 0~110% of rated current value
|Current unbalance degree
|Temperature coefficient (1/℃)
Dynamic response: When the load changes from 50%--25%--50% or 50%--75%--50%, the response time is ≤200μs, and the overshoot is ≤0.5%.
Soft start time: 3~8sSwitching machine overshoot amplitude: the maximum peak value does not exceed ±10% of the DC output setting value
Peak to peak noise voltage: ≤200mV (0~20MHz)
Weight noise voltage: ≤2mV
Q: Can we get samples?
A: Yes, but we need to charge a sample fee.
Q: Can you offer better prices? And discount?
A: Yes, Powerlink does not have a minimum order quantity, but different quantities have different prices.
Q: Can you take care of the goods?
A: If you wish, we will organize and arrange all the deliveries to your office.
Q: How about the payment item?
A: T/T, PAYPAL, Western Union.