Emi Filter Design with Tracopower isolated power supply in railway application
Your EMI link includes 3 pdf files which identify how to layout the PCB and select the inductor and size the capacitors.

https://assets.tracopower.com/20191122153555/TEN40WIR/documents/ten40wir-application.zip

If you ask for the version with F added to suffix , they can make or find stock to include filter.

Suffix -CMF