Circuit breaker

A circuit breaker with an input side and an output side for connecting and disconnecting conductors in an electrical circuit, comprising:

• a magnetic breaker device which acts on a latching mechanism unit for opening a contacting device in case of overload, and
• an arc-quencher connected to said magnetic breaker device, wherein said magnetic breaker device includes two coils which are connected electrically in parallel between said input side and said output side, even when said circuit breaker is in a state where said conductors are disconnected, wherein a moveable plunger is disposed within each of said coils, and wherein said plunger is driven by a snap-action bimetal disk, said snap-action bimetal disk having a central through-bore for said plunger and being arranged outside said electrical circuit.

A circuit breaker with an input side and an output side for connecting and disconnecting conductors in an electrical circuit, comprising:

• a magnetic breaker device which acts on a latching mechanism unit for opening a contacting device in case of overload, and
• an arc-quencher connected to said magnetic breaker device, wherein said magnetic breaker device includes two coils, said two coils being connected electrically in parallel between said input side and said output side, even when said circuit breaker is in a state where said conductors are disconnected.