I have a Dewalt Metal cutting abrasive saw that tends to open a breaker on starting up. It draws 75A on startup tripping the magnetic part of the breaker and opening it.
This circuit is only to stop the breaker from opening during the inrush period when the saw blade is totally still. Once it is rotating inrush should be manageable and not as close to the breaker-open current.
The mechanism would essentially be trigger saw -> wait a second for rotation -> close light switch and get full power.
Are there any drawbacks to this approach? I don't think it could damage the saw, but I could be wrong.
I use the saw occasionally and wouldn't be doing a huge amount of repetitive cuts, so I don't see ohmic heating being much of an issue.