Keysight (Agilent) N8738A DC Power Supply, 80 V, 42 A, 3360 W, Programmable

The Keysight N8738A is a single-output programmable DC power supply delivering 80 V at 42 A (3360 W) in a compact 2U rackmount package. Built for automated test equipment and general-purpose applications, it combines high power density with precise programmable control, integrated measurement, and extensive protection mechanisms. The unit accepts multiple AC input configurations (85–265 Vac universal, 190–240 V single-phase, or 180–235 V three-phase at 50/60 Hz) and provides USB, LAN (LXI-Core), and GPIB interfaces with integrated web server access.

Multiple units can be connected in parallel for increased current or in series for higher voltage output.

Technical Specifications

• Output: 80 V, 42 A, 3360 W


• Voltage Accuracy: 0.05% + 40 mV


• Current Accuracy: 0.1% + 84 mA


• CV Ripple & Noise: 80 mV peak-to-peak, 25 mV RMS


• AC Input: 85–265 Vac (universal), 190–240 V (1-phase, 50/60 Hz), or 180–235 V (3-phase, 50/60 Hz)


• Package: 2U height, 19-inch-wide rackmount; front-to-back airflow

Key Features

• Programmable voltage and current control via front panel, analog input, or bus interface


• Built-in voltage and current measurement


• Overcurrent, overvoltage, undervoltage, and overtemperature protection


• Front panel lockable controls with separate voltage and current knobs


• Parallel and series connection capability for extended output ranges


• IVI-COM drivers and SCPI command support

Interfaces & Control

• USB, LAN (LXI-Core), and GPIB connectivity


• Integrated web server for remote operation


• Analog/resistance control inputs


• Compatible with PathWave BenchVue Power Supply Software

Typical Applications

• Automated test equipment (ATE) and system integration


• High-current device characterization and burn-in testing


• Laboratory and industrial power sourcing