circuit breaker
nounmasculinetécnico/diʒ.ũ.'toɾ/low
dis·jun·tor
Definition
A device designed to interrupt an electric circuit automatically in case of overload or short circuit.
The circuit breaker tripped when we turned on the heater.
You need to flip the main breaker to cut power to the entire house.
Common collocations
circuit breakermain breakertrip a breaker
Etymology
Do francês disjoncteur, de disjonction.