Siemens R15F02-174 Power Interface Board

The Siemens R15F02-174 Power Interface Board is a dedicated Siemens spare-part module that serves as the interconnect between control logic and power circuits in legacy automation systems. Cataloged as R15F02A174 in many listings, this board uses screw-terminal connections and provides both a 34‑pin and a 40‑pin interface to support compatible Siemens controllers and peripheral devices. It is listed as discontinued by the manufacturer, so when considering a replacement it’s important to confirm exact compatibility with your system revision and available substitute parts. Designed to streamline power and signal routing within Siemens PLC or drive architectures, the R15F02-174 functions as a compact power-interface add‑on that can simplify wiring layouts in panel-mounted installations. For buyers evaluating suitability, verify that the board’s pin‑out and connector arrangements match your existing backplane or daughterboard interfaces and that the equipment you’re integrating with is within the same Siemens generation family to avoid mismatch. Dimension and mounting specifics are tied to the legacy enclosure standards used by Siemens at the time of its release, so ensure enclosure clearance and terminal accessibility align with your installation’s space constraints. This part is typically encountered in spare‑part catalogs and may be most appropriate for refurbishing or maintaining older Siemens automation setups that rely on screw‑terminal power interconnects.