The Keysight N8943A is a 5000 W single-output programmable DC power supply engineered for automated test equipment and high-power applications requiring precision voltage and current control. Its autoranging topology delivers full power across a wide range of voltage and current combinations, eliminating the need for multiple fixed-output supplies. The unit occupies just 3U of rack space, achieving exceptional power density while supporting parallel operation up to 100 kW total output.
Technical Specifications
• DC Output: 0–500 V, 0–30 A, 5000 W maximum
• AC Input: 400 VAC (208 VAC configurations available)
• Autoranging Output: Dynamically adjusts voltage and current within nominal power envelope
• Programming Accuracy: Voltage ±0.1%, Current ±0.2%
• Built-in Measurements: Voltage and current
• Protection: Over-voltage (OVP), over-current (OCP), over-temperature (OTP)
• Power Factor: >0.99
• Physical: 3U rack mount (610 × 483 × 133 mm), 17 kg
• Display: Digital readout
– Key Features
• Autoranging capability provides higher current availability at more voltage points than rectangular-output supplies
• Parallel master/slave architecture supports up to 4 units delivering 20 kW total, or larger configurations exceeding 100 kW
• Unified programming interface treats parallel units as a single supply, eliminating individual control requirements
• Built-in parallel link enables distributed power without external modules
– Interfaces & Control
• LAN (LXI Core)
• USB
• GPIB
• Analog interfaces
– Typical Applications
High-power ATE systems, device characterization, burn-in testing, and applications requiring stable output across dynamic load conditions.
