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Bio-Rad PowerPac 300 Power Supply

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Bio-Rad PowerPac 300 Power Supply

The PowerPac Power Supply provides constant voltage or constant current to instruments used in electrophoresis and blotting. The PowerPac is capable of the following adjustable outputs:

  • Voltage output: Adjustable from 10 to 300 volts in increments of 1 volt.
  • Current output: Adjustable from 4 to 400 milliAmps (mA) in increments of 1 mA.
  • Power output: 75 watts (maximum)

Up to four electrophoresis cells can be connected in parallel to the power supply.

The PowerPacs are programmed with default limit values for voltage and current. These are the values which are available when the unit first is turned on. These values may be changed for each application.


  • Constant voltage or constant current operation with automatic crosover.
  • Timer control.
  • Viewing angle adjustment.
  • 3-digit LED display.
  • Stackable case.
  • Automatic detection of no-load conditions and rapid changes in resistance.
  • Automatic completion of a run interrupted by a power failure, when user enabled.


Technical Specifications

  • Height: 8cm
  • Width: 33cm
  • Depth: 20.5cm
  • Weight: 1kg



Item has seen previous use but is in good condition.



Tested & working.