EA-ELR 10200-50 2U Programmable DC Electronic Load with Energy Recovery

The EA-ELR 10200-50 2U is a high-performance programmable DC electronic load designed for rigorous testing of power supplies and DC sources. As a 3000W DC Load, it offers a wide operating range of 0-200V and 0-50A, making it an ideal solution for how to test a power supply effectively and efficiently. Its defining characteristic is the advanced energy recovery system, which operates as a Recuperating Electronic Load by feeding up to 94.5% of the absorbed DC power back into the AC grid, dramatically reducing operational energy costs and heat generation. The load delivers excellent dynamic performance with a rise and fall time of ≤10ms, ensuring accurate response during transient tests. It provides high-precision measurements with a voltage accuracy of ≤0.05% FS and a current accuracy of ≤0.1% FS. Controlled via a 5-inch color touchscreen, analog interface, or digital interfaces (USB, Ethernet, and optional modules), and equipped with a built-in function generator, battery test, and MPP tracking, it is a versatile and cost-effective instrument for R&D, quality assurance, and production testing.

Key Features

• High-Efficiency Energy Recovery: Functions as an Energy Recovery Load, recuperating up to 94.5% of input power to the grid, slashing electricity costs and cooling requirements.
• Wide Voltage & Power Range: As a 200V DC Load and 3000W DC Load, it handles a broad spectrum of DC sources from 0-200V and sinks up to 50A current.
• Fast Dynamic Response: Features ≤10ms rise time and ≤10ms fall time (10-90% CC), perfect for testing power supply transient response.
• Superior Measurement Accuracy: Ensures reliable data with ≤0.05% FS voltage accuracy, ≤0.1% FS current accuracy, and ≤0.3% FS power accuracy.
• Extensive Programmability: A fully Programmable DC Load offering multiple control methods: intuitive touchscreen, analog inputs (0-5V/0-10V), and digital interfaces (USB, Ethernet, optional CAN, Profibus, etc.).
• Integrated Testing Functions: Includes a built-in function generator for creating complex waveforms, a battery test mode for discharge analysis, and MPP tracking for solar energy applications.
• Scalable System Solution: Supports master-slave parallel operation with up to 64 units via Share Bus and Master-Slave Bus, enabling the creation of high-power systems up to 192kW.
• Comprehensive Protection Suite: Built-in protections include Overvoltage (OVP), Overcurrent (OCP), Overpower (OPP), Overtemperature (OT), and Power Fail (PF) for safe and reliable operation.