Drummer3 posted:Sounds like I will try the 10-amp automotive type breaker, and add an external TVS on each post. Thanks for all the tips!
All the current drawn from posts A, B, C, & D first passes through the ZW's circuit breaker. If it's worn and out of spec adding an external breaker to each post is not going to prevent the main breaker from tripping. Bottom line is that it needs to be replaced. You still need to add a breaker & a TVS to each output to protect against voltage spikes and current surges from those outputs.