EA Elektro-Automatik EA-PSB 10920-125 4U Bidirectional DC Power Supply
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EA Elektro-Automatik EA-PSB 10920-125 4U delivers 920V/125A bidirectional power with 96%+ efficiency, energy recovery, autoranging output, and integrated test/simulation capabilities.
Product details
| Model | EA-PSB 10920-125 4U |
| Manufacturer | EA Elektro-Automatik |
| Category | Bidirectional DC Supplies |
| Availability | Made to order |
Description
Overview
EA Elektro-Automatik EA-PSB 10920-125 4U is a high-capacity bidirectional DC laboratory power supply rated for 920V/125A output with 30kW maximum power. As a two-quadrant device, it combines programmable power supply and electronic load functionality. Operating in load mode, the unit regeneratively returns energy to the AC grid with efficiency exceeding 96%, enabling cost-effective and environmentally sustainable testing of high-power systems.
Key Features
- Bidirectional operation: source and sink in two quadrants
- Output: 920V DC, 125A continuous, 30kW maximum power
- Input: 208–480V +10% three-phase AC with active PFC (~0.99)
- Autoranging output stages for optimized voltage/current ratios across full power range
- Energy recovery efficiency exceeding 96%
- 16-bit digital regulation with ADCs and DACs
- 5-inch color TFT touchscreen with intuitive user interface
- Regulation modes: CV, CC, CP, CR with fast crossover
- Integrated function generator with predefined and arbitrary waveforms
- Battery and fuel cell simulation capabilities
- Photovoltaics test mode with MPPT and EN 50530 compliance
- Master-Slave bus for parallel operation of up to 64 units
- Optional water cooling in stainless steel for enhanced thermal management
- Communication interfaces: USB, Ethernet, CAN, CANopen, RS232, Profibus, EtherCAT, Profinet, Modbus
Applications
- High-power battery testing and characterization
- Electric vehicle drivetrain and energy system testing
- Renewable energy system validation and development
- Automotive electrical system testing (LV123, LV124, LV148)
- Power electronics and converter testing
- Fuel cell and hydrogen energy development
- Grid-connected inverter testing
Included Accessories
- Remote sensing plugs (2)
- USB cable 1.8 m
- DC terminal covers set
- Sense terminal cover
- AC connector plug (clamp type)
- AC cable strain relief set
- USB stick with documentation and software
Specifications
| Maximum Power | 30 kW |
| Output Voltage | 920 V |
| Output Current | 125 A |
| Input Voltage | 208-480 VAC |
| Interface | USB, Ethernet (100 MBit) for communication, 1 x USB Host for Data Acquisition |
| Display | 5 TFT Color Touch |
| Series | EA-PSB 10000 4U Series |
| Current Accuracy | ≤0.1% FS |
| Current Range Selector | 100-199 |
| Dimensions | 19x7x31" |
| Frequency Range | 45-65 Hz |
| IP Rating | IP20 |
| Mounting Type | Rack Mount |
| Number of Outputs | Single Output |
| Operating Temperature Range | 32-122°F |
| Power Range Selector | 30,000-49,999 |
| Relative Humidity Range | ≤80% |
| Resistance Range | 0.25-550 Ω |
| Safety | EN 61010-1 IEC 61010-1 UL 61010-1 CSA C22.2 No 61010-1 BS EN 61010-1 |
| Storage Temperature | -4-158°F |
| Type | Programmable Bi-Directional DC Power Supply |
| Voltage Accuracy | ≤0.05% FS |
| Voltage Range Selector | 500-999 |
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EA Elektro-Automatik EA-PSB 10920-125 4U Bidirectional DC Power Supply
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