EA-EL 9080-340 B 3U Programmable Electronic DC Load from EA Elektro Automatik EL 9000 B Series

The EA-EL 9080-340 B 3U is a high-power programmable electronic DC load from the EA-EL 9000 B Series, designed for demanding industrial and laboratory applications such as battery discharge testing, photovoltaic MPP tracking, and fuel cell characterization. This 19-inch rack-mountable unit (3U height) offers an input voltage range of 0-80 V DC and input current up to 340 A, with a maximum power handling of 4800 W (derated to 3000 W at 21°C ambient and 2400 W at 35°C). It supports four operation modes: constant voltage (CV), constant current (CC), constant power (CP), and constant resistance (CR), all controlled by an FPGA-based digital circuit for high precision and fast transient response. The built-in color TFT touch panel enables intuitive manual operation, while advanced functions include an arbitrary waveform generator, XY table for nonlinear internal resistance simulation, battery test mode with Ah counting, and MPP tracking for solar inverter testing. Safety protections include adjustable OVP, OCP, OPP, and OTP. The unit features galvanically isolated analog and USB interfaces, a master-slave bus for parallel connection (up to 72 kW in cabinets), and a slot for optional digital interface modules (CAN, CANopen, Ethernet, Profibus, Profinet, RS232, EtherCAT, ModBus TCP). Remote control is supported via SCPI and ModBus RTU/TCP commands, with LabVIEW VIs and Windows software included. With high accuracy (voltage ≤0.1%, current ≤0.2%, power ≤0.5%) and fast rise time ≤50 μs, the EA-EL 9080-340 B 3U is ideal for R&D, incoming inspection, and automated test systems requiring reliable DC load capabilities.

Key Features

• High Power Density: 0-80 V DC input, 0-340 A current, 4800 W max power in 3U 19" form factor.
• Four Operation Modes: CV, CC, CP, CR with FPGA-based digital control for accuracy and speed (rise time ≤50 μs).
• Integrated Function Generator: Generate arbitrary curves and simulate nonlinear internal resistance using XY table.
• Battery Test & MPP Tracking: Dedicated modes for constant current/constant resistance discharge with Ah measurement, plus MPPT analysis for photovoltaic applications.
• Flexible Connectivity: Built-in USB and analog interface (0-5V/0-10V, galvanically isolated), plus slot for fieldbus modules (CAN, Ethernet, Profinet, EtherCAT, etc.).
• Parallel Operation & Scalability: Master-slave bus allows multiple units to be paralleled, achieving up to 72 kW total power in cabinets.
• User-Friendly HMI: Color TFT touch panel with multilingual support (German, English, Russian, Chinese) and two rotary knobs.
• Comprehensive Protection: Adjustable OVP, OCP, OPP, and overtemperature shutdown for safe operation.
• Remote Control & Software: SCPI and ModBus RTU/TCP command set, LabVIEW VIs, and Windows control software with data logging to USB.