PSB 20360-40 Triple Programmable Bidirectional DC Power Supply

The EA‑PSB 20360‑40 Triple is a three‑channel programmable bidirectional DC power supply from the EA‑PSB 20000 Triple series, engineered to function as a benchtop power supply, a regenerative DC power supply, and a two‑quadrant power supply within a single 3U form factor. Each of the three independent and galvanically isolated channels delivers an autoranging output from 0‑360 V and 0‑40 A, providing a total device power of 0‑15000 W (up to 5 kW per channel). The unit achieves up to 95.5 % efficiency in both source and sink modes, and in regenerative operation it feeds energy back to the grid with up to 96 % efficiency, lowering operational and HVAC expenses. It accepts a wide AC input of 208‑480 V ±10 % three‑phase with active PFC (typical 0.99 power factor). Built‑in communication interfaces include USB, 1 Gbit Ethernet, EtherCAT, CAN FD, digital I/O, and a Share‑Bus for parallel operation of up to eight units, enabling a total system power of 120 kW. A versatile function generator supports sine, triangle, square, trapezoid, ramp, and arbitrary waveforms, and facilitates PV solar panel simulation per DIN EN 50530 as well as fuel cell simulation. Housed in a 19‑inch 3U rack enclosure (668 mm depth, 32.8 kg), the PSB 20360‑40 Triple is optimized for computer power supply testing, battery simulation, and automated test systems requiring precise bidirectional power flow and fast communication.

Key Features

• Three Independent Bidirectional Channels: Fully isolated 360 V / 40 A outputs with autoranging technology, delivering up to 5 kW per channel for parallel testing of multiple components such as motors, inverters, and chargers.
• High Efficiency with Energy Recovery: Up to 95.5 % source/sink efficiency and up to 96 % regenerative grid feedback, minimizing heat generation and reducing cooling costs.
• Wide AC Input and Power Factor Correction: Operates from 208 V to 480 V three‑phase AC with active PFC (0.99 typical) and automatic voltage adjustment.
• Extensive Connectivity: Integrated USB, 1 Gbit Ethernet, EtherCAT, CAN FD, Share‑Bus, and digital I/O for easy integration into industrial networks and automated test environments.
• Advanced Function Generator and Simulation: Built‑in sine, triangle, square, trapezoid, ramp, and arbitrary waveforms; supports PV panel simulation per DIN EN 50530 and fuel cell emulation.
• Scalable Parallel Operation: Master‑slave bus and Share‑Bus allow up to 8 units to be paralleled, achieving 120 kW total power with balanced load sharing.
• Compact 3U Rack Design: Space‑efficient 19‑inch enclosure (3U height, 668 mm depth) with forced air cooling and intuitive front panel control via TFT display and rotary knobs.