Thank you for your responses and insight into this matter, it has given me some views I hadn't thought of. The breaker has been tested and does continue to operate properly with associated wiring attached, but as yet I haven't simulated the conditions that created the fault. I will take your...
The breaker has been replaced. I am a licensed electrician of 12 years and have never seen any thing like this happen before. I was unable to find much of anything about this occurrence in traditional text and so turned to the experts here. I am aware of how a GFCI, either single or multiple...
I depressed the test button with both branch circuit conductors removed from the breaker, also the line neutral on the breaker had been removed from the neutral bar in the panel, there is not a field neutral installed as the breaker supplies a heating element and no neutral is necessary, the...
Why would disconnecting both branch circuit conductors and the factory wired neutral from the neutral bar in the panel, cause an arcing effect that would trip a 200 amp main when the breaker is energized and the test button is pressed? The breaker is a Siemens 2 pole 50 amp being utilized for...
I am having a disagreement with another electician over the size of internal windings in a part winding start motor. He claims the start windings are wound with larger wire since they experience a higher current inrush. All my literature says the motor draws approximately 65% inrush at start up...
