Yes, the PW ZW and any other PW transformer should have a fast-blow fuse or circuit breaker between the hot and the track. Folks here gave me the right part number for fuses and fuse holder, so I went that route.
There's one other strong recommendation here regardless of using modern transformers with built-in circuit protection or PW transformers with additional external fuses or breakers. That is to add transient voltage suppression (TVS) diodes across the hot and common terminals of each transformer (or at each lock-on, etc.). I can't explain the process they protect against, but many guys here much smarter than me say to use them, so I do.
Were you an A-10 pilot?
