EA-ELR 12000-40 4U Programmable Regenerative DC Electronic Load

The EA-ELR 12000-40 4U is a high-performance programmable electronic DC load with energy recovery, designed for testing various power supplies including 24V power supplies, DC power supplies, bench power supplies, and programmable DC power sources. As a 30kW regenerative DC load, it features an extensive voltage range of 0-2000V and current range of 0-40A, achieving up to 96.5% efficiency in energy recovery, which significantly reduces operating costs and heat dissipation. This unit is an ideal solution for answering "how can I test a power supply" with its comprehensive testing capabilities. It includes a built-in arbitrary waveform generator supporting sine, triangle, rectangle, trapezoid, DIN 40839, arbitrary, ramp, and IU table functions, plus dedicated battery test and solar panel MPP tracking modes. With master-slave operation, up to 64 units can be paralleled for higher power applications. It offers multiple operating modes (CV, CC, CP, CR), comprehensive protection (OVP, OCP, OPP, OT, PF), and various interfaces (USB, Ethernet, analog, optional digital modules). Cooling options include forced air or optional water cooling, and it meets stringent safety and EMC standards including EN 61010-1.

Key Features

• High Voltage and Efficiency: 2000V electronic load with 30kW power rating and up to 96.5% energy recovery efficiency, providing cost-effective testing for high-voltage applications.
• Comprehensive Power Supply Testing: Capable of testing 24V power supplies, DC power supplies, bench power supplies, programmable DC power supplies, and other power sources with precise load simulation.
• Advanced Function Generator: Built-in arbitrary waveform generator with sine, triangle, rectangle, trapezoid, DIN 40839, arbitrary, ramp, and IU table functions for versatile test scenarios.
• Specialized Testing Modes: Battery test system for charge/discharge cycles and solar panel MPP tester for maximum power point tracking simulations.
• Scalable Master-Slave Operation: Connect up to 64 units in parallel for systems up to 1920kW, with automatic current sharing and system initialization.
• Multiple Operating Modes: Constant voltage (CV), constant current (CC), constant power (CP), and constant resistance (CR) modes for flexible load simulation.
• Comprehensive Protection: Overvoltage (OVP), overcurrent (OCP), overpower (OPP), overtemperature (OT), and power fail (PF) protections ensure device and source safety.
• Extensive Connectivity: Built-in USB, Ethernet, and analog interfaces; optional digital interfaces (CANopen, RS232, Profibus, etc.) for remote control and monitoring.
• Flexible Cooling Options: Standard forced air cooling or optional water cooling for reliable operation in demanding environments.