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The PS 2042-10B is part of a series of EA lab power supplies, these are microcontroller controlled digital power supplies with a good functionality. Power supplies in this series are relatively cheap power supplies, which offer flexible "auto-ranging" so they can either offer a high current, or a high voltage within the power provided, of which a picture can be seen in the pictures. The power supply indicates when it operates in CC (constant current), or CV (constant voltage) mode. In addition, on the LCD screen there is room for 4 digits to accurately indicate the current current and voltage. With a push of the dial you can switch between fine or precise setting of the values (0-42V or 0-10A).

This power supply provides overvoltage protection, but also overcurrent protection. This allows you to set the current at which the power supply will be switched off. This current is adjustable from 0 - 110 %. The power supplies can be managed and checked with a computer via a USB connection on the front of the device.

Besides the PS 2042-10B, the PS 2084-10B from this series of lab power supplies is also offered. The power supplies differ mainly in terms of supplied voltage and power, as can be seen in the tables below.


Power 160 W
Output Voltage 0 - 42 V
Output current 0 - 10 A
Input voltage 90 - 260 V / 45 - 65 Hz
Ripple < 63 mVpp, < 5 mVrms
Adjustment deviation < 0.2 %
Efficiency 85%
Weight 2 Kg
Dimensions 174 x 82 x 240 mm

For more information, the catalogue or the  manual can be found here. (The manual is available in English from page 13)


The difference between the models can be found in the power that the power supplies can deliver, especially in the maximum voltage. In addition, the 2084 is actively cooled where the 2042 is passively cooled.

PS 2084-10B
ModelPS 2042-10BPS 2084-10B
Output voltage 0 - 42 Volt 0 - 84 Volt
Power 160 Watt 320 Watt
Ripple < 63 mVpp, < 5 mVrms < 150 mVpp, < 2 mVrms
Dimensions 174 x 82 x 240 mm 174 x 82 x 320 mm


The power supplies are supplied with:

  • Power cord
  • User Manual

Do not forget to order the correct cables with the power supply.


Optionally, the functionalities of the power supply can be extended with the EA software package.

  • Electro Automatik PS 2000 series software option

  • .