EA-ELR 11500-20 3U Programmable Electronic DC Load with Energy Recovery

The EA-ELR 11500-20 3U is a regenerative programmable DC electronic load engineered for high-voltage testing applications, featuring a 1500V DC input range, 20A maximum current, and 10000W power rating (derated to 6000W at 208V AC input); this energy recovery load achieves up to 95.5% efficiency by feeding consumed DC power back into the AC grid, significantly reducing operating costs and heat dissipation, while offering versatile operation in constant current (CC), constant voltage (CV), constant power (CP), and constant resistance (CR) modes; equipped with a built-in function generator for creating complex waveforms and sequences, it supports advanced testing capabilities including battery discharge testing and MPP tracking for solar panel simulation, all controlled via an intuitive 5-inch color TFT touchscreen; with triple-phase AC input (380-480V ±10%, 45-65Hz), comprehensive protection features, and master-slave parallel operation for power scaling up to 64 units, it is an ideal solution for power supply validation, industrial burn-in testing, and high-voltage laboratory applications.

Key Features

• High Voltage DC Input: Supports DC input range of 0-1500V, making it suitable for testing high-voltage power supplies and systems.
• Energy Recovery System: Recuperates up to 95.5% of absorbed energy back to the local grid, drastically lowering energy consumption and operational costs.
• Multiple Operating Modes: Provides constant current (CC), constant voltage (CV), constant power (CP), and constant resistance (CR) operation for comprehensive load simulation.
• Integrated Function Generator: Generates sine, triangle, rectangle, trapezoid, DIN 40839, arbitrary, ramp, and XY table waveforms for dynamic and complex testing profiles.
• Advanced Application Functions: Includes dedicated battery test function for discharge analysis and MPP tracking function for simulating and testing solar panel characteristics.
• User-Friendly Control: Features a 5-inch color TFT capacitive touchscreen, two rotary encoders with push-button function, and clear menu structure for easy setup and monitoring.
• Robust Connectivity: Offers built-in USB, Ethernet, and galvanically isolated analog interface (15-pin D-Sub), plus a slot for optional digital interface modules (e.g., CAN, Profibus, ModBus TCP, EtherCAT).
• System Scalability: Enables parallel master-slave operation with up to 64 units of the same series, allowing for systems with total power up to 960kW.
• Comprehensive Safety Protections: Includes adjustable overvoltage (OVP), overcurrent (OCP), overpower (OPP), overtemperature (OT), and power fail (PF) protections to ensure operational safety.
• High Efficiency & Accuracy: Delivers high efficiency up to 95.5% and precise measurement with display accuracy of ≤0.05% FS for voltage and ≤0.1% FS for current.