Quote Originally Posted by m_c View Post
It doesn't. I was clarifying what the manual meant by potential disruption to the power supply.
Ah, that wasn't clear from the first paragraph, it seems to link the issues.
I have overload only breakers on workshop equipment as no RCD I've found deals with my MIG welding equipment, it's all inductive kit, none of your modern switch mode stuff, and it deals better with fine work than any switch mode stuff I've yet tried.