Qingdao Maikeni International Trading Co., Ltd.
Main products:50KW Frequency Converter,100KW Frequency Converter,Induction Heating Machine
Contact Us
  • Contact Person : Mr. Zhang Davide
  • Company Name : Qingdao Maikeni International Trading Co., Ltd.
  • Tel : 86-531-87901797
  • Fax : 86-531-87901697
  • Address : Shandong,Jinan,Building 15, Hongyuan Garden, West Second Ring Road
  • Country/Region : China
  • Zip : 250022

28v DC power supply

28v DC power supply
Product Detailed
28vDC power supply 1.low noise&ripple 2.High accuracy, precision and stability 3.well protecion 4.ISO9001-2000

28v DC power supply 


Small volume, light weightPWM modulation, for lower consumed power, higher efficiency and electricity save.Well-designed electronic circuit, forced air-cooled heat treatment, with a very low temperature coefficient.Low noise, low ripple.High-gain amplifier circuit design, with a good rapid response characteristics.Four high sampling rate, high resolution voltage and current digital display meter.Built-in OVP over-voltage protection circuit and OTP over temperature protection circuit, reliable protection function.This product is designed load-side voltage detection terminals, able to accurately read the load terminal voltage and precise control functions.



AC Input

Single phase 220V±10%

Three phase 380V±10%


DC Output Voltage

0-600VDc adjustable

Output Current

0-1000A adjustable

Power Supply Stability


Load Stability


Ripple Wave


Voltage Display

 Precision: ±1% (10%-100% Rated Value)

Display Format  0.000V-9.999V 0.00V-99.99V 0.0V-999.9V

Current Display

Precision: ±1% (10%-100% Rated Value)

Display Format  0.000A-9.999A   0.00A-99.99A 0.0A-999.9A

Output Over-voltage Protection

Built-in O.V.P protection, protection value is +5% of the rated value,the output will be closed when protection

Output Over-current


Over load, short circuit

Over-temperature Protection

Built-in O.T.P protection,protection value is 85°C±5%(temperature of radiator),the output will be closed when protection

Voltage Setting

10 turns potentiometer

Current Setting

10 turns potentiometer

Output polarity

Output positive(+),negative(-) grounded


Forced Air Cooling

Operating Enviroment

Designed for indoor, temperature 0°C~40°C Humidity  10%~85% RH

Store Enviroment

Temperature: -20°C~70°C Humidity: 10%~90% RH

28v DC power supply

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