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DC Power Supply TPR 3003-2D 30V


This serial power supply is a kind of high-precision linear dc power supply. It composed of two way regulated output and one-way fixed output. In addition, it can be acted both as constant voltage and constant current power supply. What’s more, its constant voltage and constant current can convert automatically. With high stability, high reliability and low noise, it can be used in many different areas.


1. Educational Laboratories
2. Electronic production line
3. communications industry
4. product research
5. All other areas need dc power supplies

Suitable for the laboratory, electronic, communication equipment maintenance, products line, scientific research and teaching units

Products related to auto/products, related to electron/ products related to the computer, research institutions, educational institutions can use it



1. Two adjustable outputs and one 5V/3A fixed output
2. The two-way regulated power supply can be randomly in series, in parallel or independently according to requirements. And do not need external connection, just control by a switch
3. Have constant voltage and constant current operation mode. C.C and C.V convert automatically
4. Low Ripple and Noise
5. 4 groups of 3 digits LED display
6. Have current limitation protection


Input Voltage: AC 220/110V ±10% 50/60Hz ±2Hz

Output Voltage: 2*0-30V

Output Current: 2*0-3A

Series Voltage/Current: 0-60V/0-2A

Parallel Voltage/Current: 0-30V/0-4A

Constant Voltage Mode:

Voltage Stability: ≤ 1×10-4+ 0.5mV

Load Stability: 1×10-4+ 2mV (output current < 3A); ≤ 1×10-4+ 5mV (output current > 3A)

Ripples and noises: ≤ 0.5mVrms (output current < 3A); ≤ 1.0mVrms (output current >3A)

Constant Current Mode:

Current Stability: ≤ 2×10-3 + 6mA

Load Stability: ≤ 2×10-3 + 6mA

Ripples and noises: ≤ 3mArms

Voltage Display Accuracy: ±1%+2 figures

Current Display Accuracy: ±2%+2 figures

5V Regular output power supply

① Nominal output voltage: 5V ±3%

② Nominal output current: 3A

③ Current effect: ≤1×10-4 + 1mV

④ Load effect: ≤1×10-3

⑤ Ripples and noises: ≤ 0.5mVr.m.s

Operating temperature: 0℃ to 40℃

Relative humidity: < 80%

Storage temperature: -10℃ to 70℃

Relative humidity: < 70%

Overall Dimensions: 340*260*155mm

Working hours: constantly working more than 8 hours


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