EA-ELR 10920-125 4U 30kW Programmable Regenerative DC Electronic Load

The EA-ELR 10920-125 4U is a high-performance, energy-recovering programmable DC electronic load, also known as the ELR 10920-125 4U, EA-ELR 10920-125, or simply the 125A Electronic Load. As a 30kW Regenerative DC Load, it features advanced energy recovery technology that feeds up to 96.5% of the absorbed power back into the local grid, significantly reducing operating costs and heat dissipation. This Regenerative Electronic Load offers a wide operating range of 0-920V and 0-125A, making it an ideal Programmable DC Power Source for testing high-voltage applications. It is an excellent solution for Computer Power Supply Testing, Power Supply Supplies validation, and serves as a top budget PSU tester for R&D, production, and quality assurance. The integrated Arbitrary Waveform Generator, Battery Test System functionality, and Solar Panel MPP Tester capabilities provide unparalleled flexibility for simulating complex real-world scenarios, including automotive electrical tests compliant with DIN 40839. With Master Slave Operation, multiple units can be paralleled to create systems with power up to 1920 kW, offering exceptional scalability.

Key Features

• High-Efficiency Energy Recovery: Recovers up to 96.5% of absorbed energy, feeding it back into the AC grid to drastically reduce operating costs and cooling requirements.
• Wide Operating Range & High Power: Capable of sinking up to 30kW, with a voltage range of 0-920V and a current range of 0-125A, suitable for testing a vast array of power supplies and sources.
• Comprehensive Built-in Testing Functions: Integrates an Arbitrary Waveform Generator, Battery Test System for charge/discharge cycles, and an MPP Tracking function for solar panel simulation.
• Automotive Standard Compliance: Includes a dedicated function for simulating engine start curves as per DIN 40839 / EN ISO 7637 (Test Pulse 4).
• Scalable System Power: Supports Master-Slave operation, allowing parallel connection of up to 64 units to create a single, synchronized system with a total power of up to 1920 kW.
• Multiple Control & Interface Options: Features a color TFT touchscreen, rotary knobs for manual control, and standard interfaces including USB, Ethernet, and an isolated analog interface (DB15). Optional digital interface modules (CAN, Profibus, Profinet, etc.) are available.
• Precision & Protection: High accuracy display (Voltage ≤0.05% FS, Current ≤0.1% FS) and comprehensive protection features (OVP, OCP, OPP, OT, PF) ensure safe and reliable operation for both the device and the unit under test.