Question about Eaton ARC FAULT CIRC BREAKER

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I have 3 bedrooms, each have their own arcfault breakers. i plug in a sawzall and one bedroom trips, fast at the end of the circut an takes longer at the begining. i have chect for shorts, removed and isolated all wires, it happens just some of the time. i also swapped breakers having the same result. the other 2 bedrooms work fine. does their have to be fault in the line some where to trip under load. if no load does not trip

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Hello. The issue could be with the saw itself. If the breakers are 15A (and for bedrooms, they should be) and the tool draws that or better, then the breaker will trip. The reason it trips faster at the EOL (end of line) is due to the resistance in the wiring itself. The further away from the initial source - the more loss/resistance.

Truthfully, the arcfault function is designed to detect arcing in a circuit. AFCIs disable the circuit immediately if they detect any type of problem (read "arcing") in the circuit. since the sawsall motor functions DUE to acring of the brushes on the motor, your circut is actually behaving according to design.

The final issue could be that the tool IS causing an issue, and may need repair.

Hope this helps.

Posted on Mar 29, 2011

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http://waterheatertimer.org/How-to-replace-circuit-breaker.html

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