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6555A 500 Watt DC System Power Supply, 120V, 4A

Product Status: Discontinued | Currently Supported
This product is no longer available

A replacement for this product is available:

Key Features & Specifications

Output Ratings

  • Output voltage: 0 to 120 V
  • Output current (40° C): 0 to 4 A
  • Maximum current (50° C/55° C): 3.6 A/3.4 A

Programming Accuracy at 25°C ±5°C

  • Voltage 0.06% + 51 mV
  • Current 0.15% + 4 mA

Ripple & Noise from 20 Hz to 20 MHz

  • Voltage rms: 700 µV
  • Peak-to-Peak: 7 mV
  • Current rms: 2 mA


Keysight application specific DC power supplies offer tailored solutions for specific needs. The single output, 500 W, 655x series provide front panel and analog control of output voltage and current; fast, low-noise outputs; fan-speed control to minimize acoustic noise; and protection features to ensure DUT safety.

The Keysight 480W, no interface, single output 6555A is a flexible and reliable power with fast protection features that streamlines common tasks and accelerates test throughput with fast up- and downprogramming.