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Regenerative DC Electronic Loads with Energy Recovery | 30 kW

ELR 10000 4U

The ELR 10000 4U from EA Elektro-Automatik is a state-of-the-art programmable DC load featuring energy recovery technology, delivering up to 30 kW of power per unit with efficiency reaching 96%. Designed for demanding applications such as battery testing, solar panel evaluation, and fuel cell research, it offers wide-ranging voltage (up to 2000 V) and current (up to 1000 A) capabilities. Equipped with an intuitive 5-inch TFT touchscreen, robust safety features, and flexible configuration options, this series sets a new standard in high-performance, eco-friendly testing solutions.

Key Features

Energy Recovery Technology: Converts consumed DC energy into AC, feeding it back to the grid with up to 96% efficiency.

Wide Voltage and Current Ranges: Supports 0–80 V to 0–2000 V and currents up to 1000 A in a single device.

Flexible Autoranging Input Stages: Maintains full power across a broad range of voltage and current combinations.

Advanced Function Generator: Built-in generator with predefined curves, arbitrary waveforms, and solar inverter simulation.

Scalable Parallel Operation: Master-Slave and Share Bus allow up to 64 devices to operate as a unified system, achieving up to 1920 kW.

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Why Partner with W5 Engineering?

Expertise

At W5 Engineering, we specialize in power electronics, providing unmatched knowledge of EA Powered products. Our team of technical sales engineers ensures you find the perfect solution for even the most complex requirements.

Custom Solutions

We deliver customized configurations and integrations tailored to your unique applications. Whether for R&D, production, or testing, W5 Engineering ensures your power systems meet exact specifications.

Rapid Shipping

With on-hand inventory and advanced logistics, we minimize lead times to keep your projects on track. Enjoy seamless delivery and peace of mind with our reliable shipping network.

Customer Support

Our dedicated support and technical teams are with you every step of the way, offering expert assistance from installation to troubleshooting. We’re committed to your success with responsive service and training.

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Available Models

Product Information

Specifications

Interfaces and Software

Resources

Available Models

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Product Information

Unmatched Performance and Sustainability, for High-Power Applications

The ELR 10000 4U series delivers a powerful, sustainable solution for high-performance testing needs, integrating cutting-edge energy recovery technology that reduces energy costs while maximizing efficiency. With up to 30 kW per unit and a modular design, the system accommodates a wide range of applications, including battery recycling, fuel cell analysis, and solar panel testing. Its 96% efficiency ensures minimal heat generation, cutting operational costs and environmental impact.

This programmable DC load stands out with its wide-ranging voltage and current capabilities, supporting voltages up to 2000 V and currents of up to 1000 A. The flexible autoranging input stage ensures seamless operation across diverse testing conditions, while the built-in function generator enables precise simulation of real-world conditions. Operators benefit from the intuitive 5-inch TFT touchscreen for streamlined control and visualization of parameters.

Designed for scalability and adaptability, the ELR 10000 4U supports parallel operation with its Master-Slave and Share Bus systems, allowing up to 64 devices to operate as a unified solution delivering up to 1920 kW. Its extensive connectivity options, including USB, Ethernet, and optional industrial interfaces like CANopen and Modbus TCP, make it an ideal choice for automated and laboratory environments alike.

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Specifications

AC Input

- Voltage, Phases:
  - Range 1: 208 V, ±10%, 3ph AC (with DC input power derating to 18 kW)
  - Range 2: 380 – 480 V, ±10%, 3ph AC
- Frequency: 45 – 65 Hz
- Power factor: ca. 0.99
- Leakage current: <10 mA
- Inrush current / Phase current: ≤56 A
- Overvoltage category: 2

DC Output (Static)

- Load regulation CV: ≤0.05% FS (0 – 100% load, constant input voltage and constant temperature)
- Line regulation CV: ≤0.01% FS (208 V – 480 V AC +10% input voltage, constant load and constant temperature)
- Stability CV: ≤0.02% FS (during 8 h of operation, after 30 minutes warm-up, at constant input voltage, load, and temperature)
- Temperature coefficient CV: ≤30ppm/°C (after 30 minutes of warm-up)
- Compensation (remote sense): ≤5% UNominal
- Load regulation CC: ≤0.1% FS (0 – 100% load, constant input voltage and constant temperature)
- Line regulation CC: ≤0.01% FS (208 V – 480 V AC +10% input voltage, constant load and constant temperature)
- Stability CC: ≤0.02% FS (during 8 h of operation, after 30 minutes warm-up, at constant input voltage, load, and temperature)
- Temperature coefficient CC: ≤50ppm/°C (after 30 minutes of warm-up)
- Load regulation CP: ≤0.3% FS (0 – 100% load, constant input voltage and constant temperature)
- Load regulation CR: ≤0.3% FS + 0.1% FS current (0 – 100% load, constant input voltage and constant temperature)

Protective Functions

- OVP: Overvoltage protection, adjustable 0 – 110% UNominal
- OCP: Overcurrent protection, adjustable 0 – 110% INominal
- OPP: Overpower protection, adjustable 0 – 110% PNominal
- OT: Overtemperature protection (DC input shuts down in case of insufficient cooling)

DC Input (Dynamic)

- Rise time 10 – 90% CC: ≤2 ms
- Fall time 90 – 10% CC: ≤2 ms

Display Accuracy

- Voltage: ≤0.05% FS
- Current: ≤0.1% FS

Insulation

- AC input to DC input: 3750 Vrms (1 minute, creepage distance >8 mm) *1
- AC input to case (PE): 2500 Vrms
- DC input to case (PE): Depending on the model, see model tables
- DC input to interfaces: 1000 V DC (models up to 360 V rating), 1500 V DC (models from 500 V rating)

Interfaces (Digital)

- Built-in, galvanically isolated:
  USB, Ethernet (100 MBit) for communication, 1x USB host for data acquisition
- Optional, galvanically isolated:
  CAN, CANopen, RS232, ModBus TCP, Profinet, Profibus, EtherCAT, Ethernet

Interfaces (Analog)

- Built-in, galvanically isolated: 15 pole D-Sub
- Signal range: 0 – 10 V or 0 – 5 V (switchable)
- Inputs: U, I, P, R, remote control on/off, DC input on/off, resistance mode on/off
- Outputs: Monitor U and I, alarms, reference voltage, DC input status, CV/CC regulation mode
- Accuracy U / I / P / R: 0 – 10 V: ≤0.2%, 0 – 5 V: ≤0.4%

Device Configuration

- Parallel Operation: Up to 64 units of any power class in the 10000 series, with Master-Slave Bus and Share Bus

Safety and EMC

- Safety Standards: EN 61010-1, IEC 61010-1, UL 61010-1, CSA C22.2 No 61010-1, BS EN 61010-1
- EMC Compliance: EN 55011 (Class B), CISPR 11 (Class B), FCC 47 CFR part 15B (Class B)
- EN 61326-1 Includes tests: EN 61000-4-2, EN 61000-4-3, EN 61000-4-4, EN 61000-4-5, EN 61000-4-6
- Safety Protection Class: Class 1
- Ingress Protection: IP20

Environmental Conditions

- Operating Temperature: 0–50 °C (32–122 °F)
- Storage Temperature: -20–70 °C (-4–158 °F)
- Humidity: ≤80% relative humidity, non-condensing
- Altitude: ≤2000 m (≤6,600 ft)
- Pollution Degree: 2

Mechanical Construction

- Cooling: Forced air flow from front to rear (temperature-controlled fans), optional water cooling
- Dimensions (W x H x D): 19” x 4U x 668 mm
- Weight: 50 kg (110 lbs)
- Weight with water cooling: 56 kg (126 lbs)