The name of this 72.9 KB PDF holds just the code 130MT080KB, catalogued as a schematic with no board number, revision or brand. The code looks like a power-module or bridge-rectifier part number, so the file probably documents one component and its pin layout. Open it in a standard PDF viewer to check terminal assignment, maximum ratings and mounting outline. Before relying on it, confirm the complete marking on the module, as similar-looking codes can refer to parts with different voltage and current classes.
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.