A 2P4M has a maximum reverse voltage and a maximum off
state voltage of 400 volt, for a 2P5M it's 500 volt and for a
2P6M it's 600 volt.
In other words you can substitute a 2P4M with a 2P5M or
a 2P6M but not the other way around.
Thank you for the information as I was not sure about weather I could substitute the 2P5M for 2P4M.
I had checked the previous post but was uncertain.
Thank you