Recommendations for an external rapid fire circuit breaker with a ZW? I have two electronic reverse locomotives but nothing more sophisticated. The biggest draw I have is a two motor diesel lighted passenger set with 6 cars and added Rail sounds system. Pulls 6.5 amps peak. Looking around I see lots of breaker recommendations. Seems like a Sensata airpax is highly rated. Thoughts?
Yes, Sensata/Airpax "instant-trip" magnetic circuit breakers are signifcantly faster than thermal breakers. Links to sources of Sensata/Airpax breakers here. Make sure the number after the first dash is a zero, which indicates "instant trip." The number after the second dash is the current rating and has an "A" after it. Examples: PP11-0-7.50A-OC-V (PP = push-pull) or PR11-0-8.00A-XX-V (PR = push to reset). If the current draw is approaching the rating of the circuit breaker, you will hear a buzzing sound. If the buzzing is constant, just go up a step or two in the current rating. In your case, I might recommend the 8A version.
@Steve H and others have written a lot about Sensata/Airpax breakers, including here and here and here.
Access to this requires an OGR Forum Supporting Membership
