In my new workshop build out I found that my bandsaw was tripping the breaker whenever a Felder vacuum was plugged in. No other gear, just the Felder, and not on, just plugged in. I was also seeing it with the Kapax but not consistently. The electrician came out, verified that there was no short, the bandsaw peaked at 4 amps and nothing seemed wrong. He suggested it might be the new code for circuit breakers now detect arc faults (AFCI).
A little googling and I found one other person with the same problem and they verified that some Felder equipment will trip the breaker when other equipment is turned on. The electrician says he sees this problem with smart devices. The AFCI interprets the devices normal usage as an arc fault, and as the requirement for AFCI are new, a lot of devices haven't been updated to not trip them. He spent an hour verifying there was nothing wrong with the circuit when the Felder was not plugged in.
The Felder plugged into that circuit without anything else running works fine.
I am not an electrician, just thought I'd share my experience so anyone doing a new build out is aware it might happen to them.
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Originally Posted by Tom M King
