The 6623A-PCS Series of DC Precision Current Sources provides precise and very stable output currents from 3 A to 10,000 A. The 6623A-PCS Series provides the best uncertainties of any DC high current sources (i.e. < 5 ppm of precision and stability at 1000A). In addition this Series is modular and initial output currents can be expanded at any time.


  • Unique Guildline PATENTED Design
  • Precision DC Currents Up to 10,000 A
  • Output Current Stability <5 ppm for 1000A and Higher
  • Built-in Electronically Controlled Single Output Current with Electronic Polarity Switching
  • Programmable from 66259 USB controller, or from Guildline Resistance Bridges
  • Modular Design, Expandable Capabilities in 150A Increments – Investment Protection
  • Eliminates Need for Mechanical Polarity Reversing Switches and Compressed Gas