A 122 KB PDF titled 25F R Series, a family-style name that suggests a datasheet covering a range of related components rather than one board. The index lists it as a schematic, but no device, brand or revision is stated. Series documents usually tabulate the variants side by side, which helps when matching a marked part on a PCB to its ratings or finding a substitute within the same family. Open it in any PDF viewer and locate the exact variant code printed on the component before using the figures.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @cyberlanelectonik. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.