EA-PSB 10500-180 4U 30 kW Programmable Bidirectional DC Power Supply and Electronic Load

The EA-PSB 10500-180 4U is a high-power, programmable bidirectional DC power supply that seamlessly integrates the functions of a laboratory-grade power source (source) and an electronic load (sink) into a single 4U rack-mount unit; as a 30 kW model, it delivers a voltage range of 0-500V and a current range of 0-180A, achieving up to 96.5% efficiency in energy recovery (recuperation) mode to feed energy back into the grid, features built-in function generators for simulating photovoltaic (PV) curves, battery testing, and arbitrary waveforms, supports master-slave parallel operation for scaling up to 64 units (total 1920 kW) with true current sharing via Share bus and Master-Slave bus, offers multiple control interfaces including front-panel HMI with color touchscreen, rear USB, Ethernet, isolated analog (DB15), and optional digital interface modules (CAN, Profibus, Profinet, ModBus TCP, EtherCAT, etc.), ensures safety with comprehensive protections (OVP, OCP, OPP, OT, PF) and meets international safety and EMC standards (EN 61010-1, EN 55011 Class B), and is ideal for applications such as high-power battery testing, power semiconductor testing, renewable energy system simulation (solar, fuel cell), and as a programmable DC power source or electronic load in R&D and production environments.

Key Features

• Bidirectional Power Flow (Source & Sink): Functions as both a programmable DC power supply and a regenerative electronic load in one device, enabling seamless testing of components and systems that both consume and generate power.
• High Power & Precision: Delivers 30 kW rated power with 0-500V, 0-180A output, featuring high accuracy (CV regulation ≤0.05% FS), low ripple, and fast dynamic response (rise/fall time ≤10ms CV, ≤2ms CC).
• Energy Recovery (Recuperation): Recovers up to 96.5% of absorbed DC energy in sink mode and feeds it back into the AC mains, significantly reducing operating costs and heat dissipation compared to traditional resistive loads.
• Master-Slave Parallel & Series Operation: Supports parallel connection of up to 64 identical or different PSB 10000 series units via Share bus and Master-Slave bus for higher current or power systems, with automatic current sharing and centralized control from a master unit.
• Advanced Function Generator: Includes built-in arbitrary, sine, triangular, rectangular, trapezoidal, ramp, DIN 40839, PV simulation, fuel cell simulation, battery test, and MPP tracking functions for complex test sequence generation without external programming.
• Flexible Control & Interfaces: Offers local control via 5-inch color touchscreen and rotary knobs, and remote control via USB, Ethernet, isolated analog interface (0-5V/0-10V), and optional plug-in digital interface modules for integration into automated test systems.
• Comprehensive Safety & Protection: Equipped with adjustable over-voltage (OVP), over-current (OCP), over-power (OPP), over-temperature (OT), and power fail (PF) protections, along with user-definable monitoring events (UVD, OVD, etc.) for application safety.
• Robust Cooling Options: Available in standard forced-air cooling (front-to-rear) or optional water-cooling (WC) versions for high-density installations or noise-sensitive environments.
• Industrial Design & Compliance: Built in a 19-inch 4U rack-mountable chassis, designed for operation in pollution degree 2 environments (0-50°C), and compliant with key international safety (UL 61010-1, CSA C22.2 No 61010-1) and EMC standards.