Keysight (Agilent) N8756A DC Power Supply, 40 V, 125 A, 5000 W, Programmable

The Keysight N8756A is a programmable DC power supply engineered for demanding automated test equipment, research, and manufacturing applications. This single-output unit delivers 5000 W maximum power with independent voltage and current control up to 40 V and 125 A. The compact 2U rack-mount form factor (88 mm H × 442.5 mm L × 423 mm W) integrates directly into test racks with front-to-back airflow for simplified thermal management.

– Technical Specifications

Output Ratings:
• Single output: 0 to 40 V, 0 to 125 A
• Maximum power: 5000 W
• Voltage accuracy: ±(0.025% of setting + 30 mV)
• Current accuracy: ±(0.1% of setting + 375 mA)
• CV ripple: 75 mV peak-to-peak, 10 mV RMS

Input Power:
• Universal AC input: 85 to 265 Vac
• 3-phase options available: 180-235 Vac, 208 Vac, 190-240 Vac at 50/60 Hz

Interfaces:
• Standard: GPIB, LAN, USB
• LXI Class C compliant
• IVI-COM drivers with SCPI support
• Integrated web server for browser-based remote control

– Key Features

• Full overvoltage and overcurrent protection with over-temperature safeguarding
• Under-voltage limit (UVL) function with protection window capability
• Built-in voltage and current measurement
• Front-panel operation via rotary knobs with coarse/fine adjustment capability
• LED status and mode indicators with front-panel control lock
• Parallel connection support (up to four identical units for increased current)
• Series connection support (two units for increased voltage)
• Analog programming and monitoring
• Rear-panel busbars for secure load connection

– Typical Applications

Automated test systems, component characterization, power conversion validation, battery charging and conditioning, and high-current research environments.

– Compatibility & Integration

Rack-mount configuration supports ATE system integration via standard GPIB, LAN, and USB control. Remote monitoring and adjustment through any standard web browser. Modular architecture enables parallel and series stacking for extended voltage and current capabilities.