Keysight (Agilent) N8946A Autoranging System DC Power Supply, 200 V, 140 A, 10000 W

The Keysight N8946A is a 10 kW autoranging DC power supply engineered for high-power automated test applications. Delivering 0–200 V at 0–140 A with full-power autoranging capability, this single-output unit functions as multiple traditional supplies in one 3U rack-mount chassis. Autoranging technology enables any voltage and current combination within the 10,000 W envelope - a significant advantage over fixed rectangular output designs.

The instrument includes integrated voltage and current measurement, over-voltage, over-current, and over-temperature protection. Multiple N8946A units parallel via built-in parallel links, supporting master/slave configurations and enabling total outputs exceeding 100 kW.

Technical Specifications

• Power Output: 10,000 W (single output)


• Voltage Range: 0 to 200 V DC


• Current Range: 0 to 140 A DC


• Autoranging: Yes - full 10 kW available across all voltage/current combinations within rated limits


• AC Input: 400 VAC nominal; 360–440 VAC operating range


• Form Factor: 3U rack mount; 5.25 in height (13.34 cm)


• Power Density: 15 kW capability in 3U space

Key Features

• Autoranging output topology maximizes usable power across the voltage–current plane


• Built-in voltage and current measurement


• Triple protection: over-voltage, over-current, over-temperature


• Programmable control via LAN (LXI Core), USB, GPIB, and analog interfaces


• Web server interface for remote browser-based control


• Parallel operation with up to 100+ kW total capacity using multiple units


• Master/slave mode support for coordinated multi-unit systems

Typical Applications High-power automated test systems, device stress testing, battery charging and characterization, power conversion verification, and industrial equipment validation requiring stable, programmable DC output with precise measurement feedback.

Compatibility & Integration Standard interfaces include LAN, USB, GPIB, and analog control. Built-in web server enables remote operation. Multiple N8946A units interconnect via integrated parallel links for simplified programming and unified control.