ECN Forum Forums General Topics of the Trade Non-US Electrical Systems & Trades correct way to wire a thermal overload switch

I think if you use a magnetic starter you need to wire for low voltage protection like a standard 2 button stop start. Place the overload in series with the stop button.
The start button is N.O. with holding contacts. Most other connections I can think of would let the motor restart on cooldown if there is no manual reset for the over load.