Keysight (Agilent) N8955A Autoranging System DC Power Supply, 750 V, 60 A, 15000 W

The Keysight (Agilent) N8955A is a high-power autoranging DC power supply engineered for demanding ATE systems, component testing, and R&D applications. It delivers 15,000 W across a wide voltage and current operating range, with the ability to output any combination of 0–750 V and 0–60 A at full power. Unlike fixed-ratio supplies, autoranging capability allows a single unit to replace multiple traditional power supplies.

Technical Specifications

• Voltage: 0–750 V


• Current: 0–60 A


• Power: 15,000 W AC Input:


• Voltage Range: 360–440 VAC


• Input Voltage: 400 VAC


• Line Configuration: L1, L2, L3, PE (three-phase) Programming Accuracy:


• Voltage: 0.1% of full-scale


• Current: 0.2% of full-scale Physical & Packaging:


• Rack Form Factor: 3U (5.25" / 13.34 cm)


• Rack Mountable: Yes

Key Features

• Autoranging Architecture: Flexible voltage–current combinations maintain full 15 kW across the entire output envelope, eliminating the need for multiple supplies in multi-voltage test environments.


• High Power Density: 15 kW integrated into a single 3U rack slot.


• Built-in Measurement: Integrated voltage and current metering for real-time monitoring.


• Parallel Scalability: Multiple N8955A units can be paralleled via built-in master/slave control to achieve over 100 kW total output.


• Protection Suite: Over-voltage, over-current, and over-temperature protection.


• Multi-Protocol Connectivity: LAN (LXI Core), USB, GPIB, and analog interfaces for seamless ATE integration.

Typical Applications Automatic test equipment (ATE), high-power component validation, aerospace and defense testing, industrial power conversion development, and multi-voltage research applications.

Compatibility & Integration Member of the Keysight N8900 Series. Supports both standalone operation and parallel configurations for distributed power architectures.