@AGHRMatt posted:You can use a ZW, but you need to put fast-blow fuses on the transformer outputs so you won't fry the electronics if there's a problem. The ZW used a thermal breaker which isn't fast enough to prevent damage to equipment with modern electronics.
There is no breaker on any transformer or power supply fast enough to prevent damage to equipment with modern electronics as the breaker only protects against over-current, the damage occurs from over-voltage.
@Arnold D. Cribari posted:In order to protect the MTH circuit boards, I recently installed the specific TVS diodes recomended by Gunrunnerjohn (one of our top train repair experts on this Forum), to minimize potential damage to the circuit boards in MTH trains from voltage spikes.
You are good to go with the TVS usage.
