Mac Studio M2 Max Tripping my AFCI Breaker?

[ddebonis]

Posting in case anyone has encountered this before.

I've used a spare bedroom as a home office for the past three years. The power outlets are on a AFCI breaker (which are notorious for being very sensitive and 'nuisance tripping'). I've use multiple macbooks, a mac mini, and now a mac studio in here. The breaker never tripped until I got the Mac Studio.

When I remove the Mac Studio, the breaker is fine (lamps, monitors, space heater, laser printer, other apple computers all run without issue).

This morning I started using a UPS (CyberPower SL700U) and it may have fixed the issue... no trips all day.

An electrician is arriving tomorrow, but is anyone familiar with this?

Cheers.

 

[NT1440]

Kind of sounds like with the space heater and laser printer you may have been already very tight on draw in that room to begin with, especially if you’re in an old house like mine.

 

[majus]

An electrician is arriving tomorrow, but is anyone familiar with this?

Yes, I have encountered a similar issue. The solution was to have an electrician replace the breaker, which after eighteen years of service had just become unstable. No more trips since replacing it.

 

[ddebonis]

Electrician just replaced the breaker with a non-AFCI one by SEIMENS. It's within Oregon code to do this if there is "nuisance tripping." He thought that the computer could be pulling just enough power in standby mode to trick the sensitive AFCI breaker into thinking there is an arc.