Choosing thermistor

Hi all,

I would like help choosing the correct thermistor/s to place on the primary of my 400va XO. It supplies dual 25vac to 6 lm3875 gain clones, each with 2 x 1000uF caps. Trying to preempt nuisance blowing of fuse. I have several CL60 CL50 CL80 on hand.

Thanks for the help.

Gary