The X20BM05 is B&R’s X20 power-supply bus module that forms the foundational base for all X20 supply modules in the X20 I/O system, enabling compact, modular power distribution for multiple voltage groups. It is a 24 VDC keyed module with node-number switches that set the X2X link address (0x01 to 0xFD); the internal I/O power supply is interrupted to the left to allow separation of the bus power path from the I/O power path. The BM05 supports both horizontal and vertical installation orientations and serves as the central power-interface block that connects to X20 I/O modules, consolidating power delivery within B&R automation architectures.
