EA-ELR 21000 Series

High Speed DC Regenerative Loads, Up to 1.92MW

EA-ELR 21000 Series

High Speed DC Regenerative Loads, Up to 1.92MW

The ELR 21000 is a high speed regenerative DC electronic loads for testing high current applications such as next-gen AI data center power supplies and power shelves. It absorbs DC power from the device under test and feeds it back into the grid at up to 94% efficiency, reducing energy costs and cooling demand during test. With up to 1.92MW of DC power, 0–1000V, and 0–5120A, the ELR 21000 is built to validate high dynamic power shelves used in data center power infrastructure — including emerging 800V DC architecture.

Why Choose EA-ELR 21000

Regenerative Efficiency

They can recover up to 94% of absorbed energy, returning it to the AC grid, which reduces energy costs and heat generation

High Slew Rate & DC Output Dynamics

High current range up to 5120A with fast slew rate up to 12 A/μs at 240 kW. Ideal for high dynamic testing of next generation data center power supplies

Overload Capability

The ELR 21000 dynamic test system provides an overload capability of 125%. No need to overspecify the test system

Regulation Load Modes

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

Key Specifications

  • Input: 380 V – 480 V, ±10%, 3 ph AC
  • Active power factor correction, typical 0.99
  • Regenerative with energy recovery into the grid
  • Very high efficiency of up to 95%
  • High performance with up to 30 kW per unit
  • Voltage range 0 – 1000 V
  • Current range 0 – 80 A
  • Flexible power regulated DC input stages (autoranging)
  • Overpower feature allowing 125% power (within nominal voltage and current) for 500 ms. Optimized for 800 V systems.
  • Regulation modes CV, CC, CP, CR, with fast crossover
  • Digital regulation, high resolution with 16 bit ADCs and DACs, selection of voltage control speed
  • Galvanically isolated Share-bus for parallel operation
  • Master-Auxiliary bus for parallel operation
  • Built-in EtherCAT interface with 1 ms communication speed
  • Command languages and drivers: SCPI, ModBus, LabVIEW, IVI
  • Applications include: AI Data Center Servers, Avionics Power Distribution Units, Charging test stations such as On-Board Chargers and Fast Chargers and more

High Current DC Electronic Load Ideal for 800V AI Data Center Power Testing

High speed regenerative dc load test solution for next-generation data centers

The ELR 21000 dynamic test system combines EA regenerative electronic loads and application expertise into a modular, scalable test platform optimized for data center power electronics for emulating real-world conditions.

  • Total DC power up to 240 kW per rack
  • Scalable in 30 kW steps
  • Dynamic load transitions directly at 800 V DC
  • High current slew rate up to 12 A/µs at 240 kW
  • Regenerative system with efficiency up to 95%
  • Optimized for testing of 800 V systems
  • Rack equipped with a 2-channel emergency stop system

Learn more about our AI Data Center Solutions

Regenerative Battery Testing for Energy Savings

Recover test energy back to the grid instead of dissipating it as heat. Regenerative operation helps reduce lab power demand, cooling needs, and operating costs.

  • Up to 95% energy recovery
  • Drastically reduced lab heat and noise
  • Lower HVAC requirements and operational cost
  • Reduces grid power demand – only system losses are drawn from the grid
EA-ELR 20000 4U
ModelPowerVoltageCurrent Range
EA-ELR 21000 80 4U0–30 kW0–1000 V0–80 A
EA-ELR 21000 DTS
ModelPowerVoltageCurrent RangeSlew Rate
EA-ELR 21000 DTS0–1920 kW0–1000 V0–5120 A12 A/µs at 240 kW

Why Choose EA-ELR 21000

Regenerative Efficiency

They can recover up to 94% of absorbed energy, returning it to the AC grid, which reduces energy costs and heat generation

High Slew Rate & DC Output Dynamics

High current range up to 5120A with fast slew rate up to 12 A/μs at 240 kW. Ideal for high dynamic testing of next generation data center power supplies

Overload Capability

The ELR 21000 dynamic test system provides an overload capability of 125%. No need to overspecify the test system

Regulation Load Modes

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

Key Specifications

  • Input: 380 V – 480 V, ±10%, 3 ph AC
  • Active power factor correction, typical 0.99
  • Regenerative with energy recovery into the grid
  • Very high efficiency of up to 95%
  • High performance with up to 30 kW per unit
  • Voltage range 0 – 1000 V
  • Current range 0 – 80 A
  • Flexible power regulated DC input stages (autoranging)
  • Overpower feature allowing 125% power (within nominal voltage and current) for 500 ms. Optimized for 800 V systems.
  • Regulation modes CV, CC, CP, CR, with fast crossover
  • Digital regulation, high resolution with 16 bit ADCs and DACs, selection of voltage control speed
  • Galvanically isolated Share-bus for parallel operation
  • Master-Auxiliary bus for parallel operation
  • Built-in EtherCAT interface with 1 ms communication speed
  • Command languages and drivers: SCPI, ModBus, LabVIEW, IVI
  • Applications include: AI Data Center Servers, Avionics Power Distribution Units, Charging test stations such as On-Board Chargers and Fast Chargers and more

High Current DC Electronic Load Ideal for 800V AI Data Center Power Testing

High speed regenerative dc load test solution for next-generation data centers

The ELR 21000 dynamic test system combines EA regenerative electronic loads and application expertise into a modular, scalable test platform optimized for data center power electronics for emulating real-world conditions.

  • Total DC power up to 240 kW per rack
  • Scalable in 30 kW steps
  • Dynamic load transitions directly at 800 V DC
  • High current slew rate up to 12 A/µs at 240 kW
  • Regenerative system with efficiency up to 95%
  • Optimized for testing of 800 V systems
  • Rack equipped with a 2-channel emergency stop system

Learn more about our AI Data Center Solutions

Regenerative Battery Testing for Energy Savings

Recover test energy back to the grid instead of dissipating it as heat. Regenerative operation helps reduce lab power demand, cooling needs, and operating costs.

  • Up to 95% energy recovery
  • Drastically reduced lab heat and noise
  • Lower HVAC requirements and operational cost
  • Reduces grid power demand – only system losses are drawn from the grid
EA-ELR 20000 4U
ModelPowerVoltageCurrent Range
EA-ELR 21000 80 4U0–30 kW0–1000 V0–80 A
EA-ELR 21000 DTS
ModelPowerVoltageCurrent RangeSlew Rate
EA-ELR 21000 DTS0–1920 kW0–1000 V0–5120 A12 A/µs at 240 kW