Keysight EL4925A Regenerative DC Electronic Load

Overview

The Keysight EL4925A is a 4 kW regenerative DC electronic load designed for R&D, design validation, and production testing environments. This compact 1U instrument accepts inputs from 0 to 500 V and 0 to 24 A, efficiently absorbing power while regenerating up to 95% of the energy back to the grid. The regenerative design significantly reduces energy costs and cooling requirements compared to conventional loads.

Built-in voltage and current measurement capabilities, a 3-inch LCD display, and multiple I/O interfaces (Ethernet, USB 2.0, CAN, and optional GPIB and RS-232) make the EL4925A system-ready for integrated test environments. A built-in web interface allows remote control and monitoring.

Key Features

• Voltage range 0 to 500 V, current 0 to 24 A, power up to 4 kW
• Regenerative operation returns up to 95% of absorbed energy back to the grid
• Single-input, programmable load with multiple operating modes: CV (Constant Voltage), CC (Constant Current), CR (Constant Resistance), CP (Constant Power), and four additional complex modes
• Built-in voltage and current measurements with 3-inch LCD display
• Standard I/O interfaces: Ethernet/LAN, USB 2.0, CAN (optional GPIB, analog, RS-232)
• Built-in web interface for remote control and configuration
• LXI Device Specification 1.5 compliant for seamless system integration
• Compact 1U rack form factor for space-efficient deployment
• Waveform generation function for battery and transient testing
• Supports paralleling of up to 16 units for unified control of up to 192 kW
• Optional PathWave BenchVue software for power analysis and battery profiling

Applications

• Battery and energy storage device testing with waveform generation
• Power supply validation and characterization
• Renewable energy and fuel cell system testing
• Electric vehicle (EV) charging system verification
• Voltage and current transient simulation for DUT stress testing
• Production testing and burn-in of high-power electronics