The 9230A SERIES of precision DC current shunts / standards are true 4-terminal devices that precisely measure DC currents from 10 A to 10,000 A. They use special alloys in the resistive elements which are supported on an insulating base for mechanical stability. The 9230A includes special features to reduce the effects of power dissipation and associated self heating errors. These shunts are designed to operate in air at full rated current. These are the best performing, and most widely used, DC metrology shunts in the world.


  • Series Ranges from 10A to 10,000A
  • Controlled Current Distribution Through the Shunt and Low Thermal EMFs
  • Extremely Low Self-Heating Effects and Low Temperature Coefficients
  • < 10 ppm Long Term Stability
  • Air or Oil Cooled Applications
  • Forced Convection Option Available To Improve Power Dissipation