EA-PSBE 10500-30 3U 5000W Programmable Bidirectional DC Power Supply

The EA-PSBE 10500-30 3U is a high-performance programmable bidirectional DC power supply from the EA-PSBE 10000 3U series by EA Elektro-Automatik. This 5kW regenerative model functions as both a DC power source and a sink (electronic load) in two-quadrant operation, seamlessly transitioning between supplying and absorbing power. With a voltage range of 0-500V and a current range of 0-30A, it delivers full power across a wide operating range thanks to its flexible autoranging DC output stage. In sink mode, the unit features regenerative energy recovery, feeding energy back into the grid with an efficiency of up to 95.5%, significantly reducing energy costs and heat generation compared to traditional loads. The device offers high precision with 16-bit digital control and multiple regulation modes including CV, CC, CP, and CR. It is equipped with a galvanically isolated analog interface (0-5V or 0-10V programmable) and built-in digital interfaces including USB and Ethernet. For system expansion, the Master-Slave bus allows for parallel operation of up to 64 units to achieve higher power and current levels, while the Share-Bus ensures equal load distribution. With a compact 3U form factor, high accuracy (voltage display accuracy ≤0.05% FS, current ≤0.1% FS), and comprehensive protective functions (OVP, OCP, OPP, OTP), the PSBE 10500-30 is ideally suited for demanding applications such as battery testing, battery simulation, fuel cell tests, on-board charger (OBC) testing, and battery recycling discharge processes.

Key Features

• Bidirectional and Regenerative: Functions as a 2-quadrant DC power supply and electronic load. In load mode, it recovers energy and feeds it back into the grid with up to 95.5% efficiency, reducing costs and eliminating the need for external load banks.
• Flexible Autoranging Output: Delivers full 5000W power across a wide voltage (0-500V) and current (0-30A) range, providing greater flexibility for testing a variety of devices with a single unit.
• High Precision and Stability: Utilizes 16-bit ADCs and DACs for accurate control and measurement, featuring high display accuracy (voltage ≤0.05% FS, current ≤0.1% FS) and low ripple (≤70 mV rms).
• Extensive Connectivity and Control: Includes built-in galvanically isolated USB, Ethernet, and analog interfaces. Supports SCPI and ModBus command languages, LabVIEW and IVI drivers, with optional interfaces like CAN, CANopen, RS232, Profibus, EtherCAT, and Profinet.
• Scalable System Architecture: Master-Slave bus enables parallel operation of up to 64 units of any power class within the 10000 series to build high-power systems up to 1920kW, behaving as a single unit. The Share-Bus ensures balanced current sharing.
• Comprehensive Protection: Ensures device and DUT safety with adjustable overvoltage (OVP), overcurrent (OCP), overpower (OPP), and overtemperature (OTP) protection.