EA-PSB 12000-40 4U Programmable Bidirectional DC Power Supply

The EA-PSB 12000-40 4U is a high-power, programmable bidirectional DC power supply that also functions as a precise electronic load. As a key model in the 30 kW series, it delivers a wide voltage range of 0-2000 V and a current range of 0-40 A, making it an ideal Bidirectional DC source and sink for demanding test applications. Its energy recuperating design feeds up to 96.5% of consumed energy back into the AC grid, significantly reducing operating costs and heat dissipation. The unit supports seamless, automatic switching between source (power supply) and sink (electronic load) modes at the zero-crossing point. Equipped with a color TFT touchscreen, integrated function generator (sine, ramp, arbitrary, PV/FC simulation, battery test, MPPT), and multiple standard interfaces (USB, Ethernet, Analog), it offers unparalleled flexibility for manual operation and remote control. With master-slave parallel operation for power scaling up to 1920 kW and options for air or water cooling, the EA-PSB 12000-40 4U is a robust and versatile solution for high-voltage R&D, production testing, and renewable energy system validation.

Key Features

• Bidirectional Power Flow: Functions seamlessly as both a high-precision Programmable DC power supply and a Programmable DC electronic load in one unit, with automatic sink-source mode switching.
• High Power & High Voltage: Delivers 30 kW of continuous power with an output range of 0-2000 V and 0-40 A, catering to high-voltage and high-power testing needs.
• Energy Recuperation: An Energy recuperating DC power supply that feeds up to 96.5% of the absorbed energy back into the AC mains, improving efficiency and reducing operating costs.
• Multiple Operating Modes: Supports constant voltage (CV), constant current (CC), constant power (CP), and constant resistance (CR) regulation for both source and sink operations.
• Advanced Function Generator: Built-in generator for creating complex waveforms (sine, triangle, rectangle, trapezoid, arbitrary), as well as specialized functions for photovoltaic (PV) simulation, fuel cell (FC) simulation, battery testing, and MPP tracking.
• Extensive Connectivity: Features standard USB, Ethernet, and an isolated analog interface (DB15), with optional plug-in modules for CANopen, Profibus, Profinet, ModBus TCP, EtherCAT, and more for easy integration into automated test systems.
• Scalable Power System: Master-slave capability allows parallel connection of up to 64 units via Share Bus and Master-Slave Bus, creating systems with total power up to 1920 kW.
• Robust Design & Safety: Built for 19" rack installation (4U height), offers air-cooling (standard) or water-cooling (option) for thermal management, and includes comprehensive protection features (OVP, OCP, OPP, OT, PF).