A 166 KB PDF named only for the 40TPS series, without a voltage suffix, so it likely covers the family as a whole rather than one grade. It is indexed as a schematic but is component documentation for thyristors of this line. Technicians open it to read pin assignment, holding and latching current, gate trigger values and voltage classes, which helps when checking an SCR with a meter or tester and when picking a part whose voltage grade suits the circuit being repaired.
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.