The NH Research 4760 is a high-voltage DC electronic load designed for power supply testing, analysis, and validation across manufacturing, quality assurance, and R&D environments. This modular system delivers precise voltage and current regulation, dynamic transient response measurement, and efficiency analysis up to 600V. Available in eight power ratings from 1kW to 36kW, the 4760 operates across a constant power envelope from 7V to 120V, with linear current reduction below 7V down to 1V minimum.
Technical Specifications
• Maximum voltage: 600V DC
• Power range: 1kW to 36kW (eight models: 4760-1 through 4760-36)
• Current range: 50A to 1800A (model-dependent)
• Operating voltage: 7V to 120V (constant power); 1V to 7V (linear current reduction)
• Current slew rate: 0 to 5 A/µs (adjustable)
• Waveform capture: 100 kS/s
• Current measurement accuracy: ±0.12% + 0.06% of range
• DC voltage measurement accuracy: ±0.01% + 0.02% of range
• Macro storage: Up to 100-step sequences
– Key Features
• Four operating modes: Constant Current (CC), Constant Voltage (CV), Constant Resistance (CR), Constant Power (CP)
• Glitchless Auto Mode switching between operational modes
• Complex load profile playback with microsecond pulse capability, variable pulse widths, stepped responses, and adjustable slew rates
• Dynamic timing measurements: overshoot, undershoot, rise-time, fall-time, settling-time
• Internal measurements for voltage, current, power, and resistance
• Air-cooled design for reliability
• Field-expandable modular architecture
• 7-inch color touch-screen interface with dedicated monitoring, control, and scope tabs
• emPower™ Test Executive integration for test automation
• LXI Series compliance for LAN-based instrumentation control
– Typical Applications
• Power conversion product validation
• Power storage device testing
• Manufacturing quality assurance
• Dynamic load transient analysis
• Efficiency characterization
– Compatibility & Integration
PC/LAN control and manual touch-panel operation enable flexible test setup. LXI Series compliance supports network-connected instrumentation workflows.
