Skip to main content

Reply to "Circuit breaker in Lionel kw transformer(10 amp)"

Well, I absolutely agree with the recommendations to ideally use a 7 or so amp breaker in the kw. However , the 10 amp automotive type is what is typically been sold for the kw over the years. The one I have is one I acquired 10 or 15 years ago from a parts vender and is still sold by venders for the kw(15 for the zw). I installed the 10 amp yesterday before this thread. This evening after work I hooked on the layout and shorted the track with a car(no delicate electronics to fry). I measured a 20 amp fault current with ammeter (adjusted with voltage)and the breaker opened in a very short period less than 15 seconds. This is well within the original specification of 15 to 45 seconds noted on the chart for the Lionel 5 f test set for the kw with 20 amp current flow. So I probably will not burn up my transformer with a short but I think I will use resettable magnetic circuit breakers of 7 or so amp between transformer and track Along with TVs. Also some of the less than 10 amp auto reset breakers are kinda hard to find.

OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

×
×
×
×
×