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Home | Products | Regenerative AC/DC Electronic Load  | Regenerative DC E-load 
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EA-ELR Series

DC Regenerative Electronic Loads, up to 3.84MW

The EA-ELR Series regenerative DC electronic loads are engineered to deliver high efficiency and exceptional flexibility across a wide range of DC power testing applications. Regenerative technology recovers more than 96% of absorbed energy and returns it to the AC grid, helping reduce heat generation, cooling requirements, and operating costs.

True autoranging capability enables maximum power utilization across a broad voltage and current operating range, while optional control interfaces simplify integration into manufacturing, validation, and laboratory environments.

Power levels range from 1.5kW to 30kW per unit with voltage capability up to 2000V DC. For higher power requirements, parallel rack systems can be configured to deliver up to 3.84MW.

Why Choose EA-ELR

Regenerative Efficiency

They can recover up to 96.5% of absorbed energy, returning it to the AC grid, which reduces energy costs and heat generation

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True Autoranging

These supplies deliver maximum power across a wide range of voltages and currents, enhancing flexibility in testing applications

Integrated Function Generator

Built-in waveform generation capabilities, including arbitrary waveforms, facilitate comprehensive testing without the need for additional equipment

Several Load Modes

Simulate DC load modes in CV, CC, CP, CR with fast crossover

Key Features

  • Power: from 0-1500W to 0-30kW
  • Voltages: 0-80V to 0-2000V
  • Current: 0-6A to 0-1000A
  • Wide range input, 208V – 480V +10 % 3ph AC
  • Active Power-Factor-Correction, typical 0.99
  • Regenerative with energy recovery into the grid
  • Very high efficiency up to over 96%
  • High performance of up to 15kW per unit
  • Voltage from 0 – 80V up to 0 – 2000V
  • Currents from 0 – 20A up to 0 – 510A
  • Flexible power regulated DC input stages (autoranging)
  • Regulation mode CV, CC, CP, CR with fast crossover
  • Digital regulation, high resolution with 16bit ADCs and DACs
  • Selection of control speed: Normal, Fast, Slow
  • Color 5“ TFT display with touch control and intuitive user interface
  • Galvanically isolated Share-Bus for parallel operation of all power classes in the 10000 series
  • Master-Slave-Bus for parallel operation of up to 64 units of all power classes in the 10000 series
  • Integrated function generator with predefined curves
  • Integrated battery test mode Photovoltaics test mode, MPPT Command languages and drivers: SCPI and ModBus, LabVIEW, IVI

Powerful Regenerative DC Electronic Load

Autoranging for Flexible Battery Testing

The EA-ELR Series incorporates true autoranging technology, delivering maximum available power across a wide range of voltage and current combinations. Unlike conventional electronic loads that achieve full power only at a fixed operating point, autoranging maintains high power availability throughout the operating range, reducing the need for multiple dedicated systems.

  • Wide operating envelope
  • Full power utilization across varying voltage/current conditions
  • Simplified battery testing workflows
  • Reduced test system complexity

Regenerative Battery Testing for Energy Savings

Regenerative operation enables the EA-ELR Series to recover up to 96% of absorbed energy and return it to the facility power system through a mains-synchronized inverter. Instead of dissipating energy as heat, recovered power can be reused within the facility, improving overall test efficiency.

  • Up to 96% energy recovery
  • Reduced cooling requirements
  • Lower operating costs
  • Improved testing efficiency

Easy to Use Built-In Function Generator

The integrated function generator supports standard and arbitrary waveform creation for dynamic testing applications. Users can simulate complex operating conditions and perform advanced validation testing without external waveform generation equipment.

  • Standard and custom waveform generation
  • Dynamic testing capability
  • Simplified system configuration
  • No external signal generator required

Industrial Series for Most Demanding Power Needs

For applications requiring higher power density and scalability, the EA-10000 Industrial Series delivers up to 60kW per unit and up to 300kW in a single 19-inch rack. Parallel operation supports system expansion up to 3.84MW while maintaining regenerative efficiency and centralized control.

  • Up to 60kW per unit
  • Up to 300kW per rack
  • Scalable to 3.84MW
  • Centralized system contro

Optional Water Cooling (4U & 6U)

Water-cooled configurations are available for demanding industrial environments requiring enhanced thermal management. These models efficiently dissipate heat, reduce acoustic noise, and support reliable operation under continuous high-power conditions.

  • Enhanced thermal performance
  • Reduced operating noise
  • Increased reliability
  • Optimized for continuous-duty applications

Featured Video

EA-ELR Regenerative DC Loads Product Intro Video

Model Comparison

Series Power Voltage Current Range CTA
EA-ELR 10000 3U 0–5 kW / 0–10 kW / 0–15 kW 0–80 V up to 0–2000 V 0–20 A up to 0–510 A Buy / Rent
EA-ELR 10000 4U 0–30 kW 0–80 V up to 0–2000 V 0–40 A up to 0–1000 A Buy / Rent
EA-ELR 10000 2U 0–1.5 kW / 0–3 kW 0–80 V up to 0–1500 V 0–6 A up to 0–120 A Buy / Rent

FAQ

The AGX Series is a AC+DC high‑performance bi-directional regenerative programmable grid simulator and load (All-in-one) system that can both source and absorb power, enabling efficient testing of power electronics, EV systems, energy storage, and grid‑connected devices.

Regenerative means the AGX Series returns absorbed energy back to the grid instead of dissipating it as heat. This significantly reduces energy consumption, heat generation, and operating cost during high‑power testing.

It is both.
The AGX Series operates as:

  • A programmable power source
  • A programmable electronic load
  • A bidirectional system for energy flow in either direction

A four‑quadrant AGX power source can operate in all four quadrants of the voltage–current (I–V) plane, enabling both sourcing and sinking of current under positive and negative voltage conditions. The direction of instantaneous power flow is determined by P=V×I, when P>0 (quadrant 1 and 3) , the unit delivers power to the DUT (source mode), whereas when P<0 (quadrant 2 and 4), it absorbs power from the DUT (sink or regenerative mode), with the absorbed energy returned to the grid.

It is important to distinguish this regenerative sink capability from a regenerative electronic load capability. While both functions involve energy absorption, they are not functionally equivalent.

An electronic load mode is optimised for precise load emulation and dynamic current control.

AGX has both Regenerative Operation and Electronic Load Operation.

Key factors include power rating, voltage range, phase configuration, regenerative

The AGX Series is used in:

  • EV & EVSE testing
  • Battery & energy storage systems (ESS)
  • Solar and renewable inverters
  • Power electronics R&D
  • Bidirectional DC‑DC and AC‑DC converters

capability, waveform programmability, and application-specific testing requirements.

The AGX Series is used in:

  • EV & EVSE testing
  • Battery & energy storage systems (ESS)
  • Solar and renewable inverters
  • Power electronics R&D
  • Bidirectional DC‑DC and AC‑DC converters

The AGX provides both input-to-output isolation, and phase to phase or channel to channel isolation. Galvanic isolation provides complete separation between the input and output so there is no electron flow between channels.

AGX has embedded, web browser interface with real-time control, we call it SmartSource Suite. No driver/license required to operate AGX.

The AGX is designed to handle overload conditions with its capability of providing 130% of its rated current for a duration of 2 seconds. This is critical for applications that have inrush current conditions that arise due to start up, transient power demands, or sudden changes in loads.

Yes. The AGX Series supports dynamic power profiles, allowing engineers to simulate real‑world operating scenarios such as load changes, power ramps, and bidirectional transitions.

Yes. The AGX Series is specifically designed for bidirectional power flow, making it ideal for:

  • EV powertrains
  • Energy storage systems
  • V2G / V2H development
  • Advanced power conversion systems

Yes. The AGX Series supports remote control and automation, allowing integration into automated test systems for repeatable and scalable testing.