No does it have to be led?
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Yes, indeed. It is very common (even normal) for large frame circuit breakers used in "other than residential" applications to feature a small LCD screen that can display a great variety of data about the breaker's present condition. This can include the current passing on each phase. We're talking breakers that are in the 10's of thousands of dollars, each, however. There is nothing presently like that for a residential plug-on application. Doubtful there ever will be.do you know of or seen a curcuit breaker that shows the amp flowing thru that curcuit by a led read out at the breaker
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