B&R Industrial Automation 2PS425.9 Power Supply

2PS425.9 PS425 System Power Supply from B&R is a 24 VDC, 100 W backplane power module designed for use with BP200, BP201, and BP210 backplanes in the PS425 system, featuring backplane hooks for secure mounting. It accepts an input voltage range of 18–30 VDC (nominal 24 VDC) and provides a regulated 24 VDC output rated at 100 W, with a maximum load current of about 6.5 A. The module uses external hold-up capacitors—20,000 µF for single‑phase and 12,000 µF for three‑phase configurations—to enhance ride‑through performance, and includes protective features such as a 10 A slow‑blow fuse (250 V), thermal overload protection, and a current limit for safe operation. Transient protection up to 2.5 kV helps guard connected I/O and controllers, while status LEDs and a READY relay give immediate at-a-glance indication of power availability. Its physical footprint measures 285 mm in height, 40 mm in width, and 185 mm in depth, and the unit is C‑UL‑US listed for safety compliance. By providing the PS425 system’s primary 24 V rails, this module supports a range of industrial automation tasks, ensuring reliable power for I/O, controllers, and peripheral modules mounted on compatible BR backplanes.