Reply to "Post war ZW transformer circuit breaker pops after 5 - 10 minutes of running 3 trains simultaneously; what's up?"

W=V*A

14V at 2Amps is about 30 Watts, or ~90 Watts total.

18V at 2Amps is 36 Watts, close to your 40 estimate.

Your internal circuit breaker seems to be worn out and needs to be replaced with one of the ones I mentioned way above at the beginning of this thread. As stated earlier, TVS diodes are a good addition, along with smaller breakers for each throttle.

2/17/1710:45 AM

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