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
DC Output Ratings:
• 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.
