EA Elektro-Automatik EA-ELR 10500-20 2U Regenerative DC Load

Overview

The EA-ELR 10500-20 2U is a programmable regenerative electronic DC load designed for 2U rackmount applications. It accepts single-phase AC input (100V–240V) and can sink DC power up to 500V at 20A with 3kW total power capacity. This compact unit features active power recovery technology that returns unused energy to the grid with efficiency exceeding 95%, reducing operational costs and facility cooling requirements.

Key Features

• Regenerative with energy recovery to grid (>95% efficiency)
• Autoranging for flexible power regulation across voltage and current ranges
• 5-inch color TFT display with touch control interface
• Multiple regulation modes: CV (constant voltage), CC (constant current), CP (constant power), CR (constant resistance) with fast crossover
• Active Power-Factor-Correction with typical 0.99 PFC
• 16-bit ADCs and DACs with selectable control speed (Normal, Fast, Slow)
• Galvanically isolated Share-Bus for parallel operation of units in the 10000 series
• Integrated function generator with predefined waveforms for dynamic testing
• Battery test mode and photovoltaic MPPT test mode
• SCPI, ModBus, LabVIEW, and IVI command language support

Applications

• Power supply testing and validation
• Battery charging and discharging cycle testing
• Photovoltaic panel characterization with MPPT simulation
• Dynamic load testing of DC sources
• Parallel multi-unit rack configurations for higher power requirements