RJR posted:A TVS bleeds off voltage peak surges. A breaker opens upon overcurrent. You can have a high voltage surge without an overcurrent, and vice versa. So the answer is no.
So if you have an overcurrent situation coming back from the track through the MTH terminal block to the TIU, wouldn't the PSX placed between the block and the TIU provide better protection than just the TVS, since you're saying the TVS only bleeds off voltage surges ?