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Keithley 2268-40-21

850W DC Power Supply, 40V, 21A


  • Compact 1U, half-rack enclosure provides the highest power in the smallest package

  • Two auxiliary outputs support driving or signaling external devices, often eliminating the need for additional instrumentation

  • Isolated analog inputs minimize control line noise

  • Built-in LAN, USB, GPIB, RS-232, RS-485 interfaces and analog inputs are all standard

  • Constant voltage, constant current, and constant power setting control

  • Auto sequence control supports internal execution of commands to minimize bus communication time

  • Built-in LAN, USB, GPIB, RS-232, RS-485 interfaces and analog inputs are all standard

  • Control up to 30 supplies through a single controller interface

  • Foldback mode with programmable delay shuts down the output on transitions between CV and CC operation to protect voltage- or currentsensitive devices

  • Numerous safety features protect the load and the supply, including: over-voltage and under-voltage protection, over-current protection, overtemperature protection, loop protection for multiple-supply configurations, and a hardware 8output interlock

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