A medium voltage or high voltage circuit breaker, comprising:
- a first terminal;
- a second terminal;
- a first vacuum interrupter;
- a second vacuum interrupter;
- an interconnection part;
- an actuator;
- an operating rod;
- and
- a lever system;
- wherein the first terminal is electrically connected to a first fixed contact of the first vacuum interrupter, and wherein the second terminal is electrically connected to a second fixed contact of the second vacuum interrupter;
- wherein the interconnection part is configured to be in electrical connection with a first movable contact of the first vacuum interrupter and the interconnection part is configured to be in electrical connection with a second movable contact of the second vacuum interrupter when the circuit breaker is in a closed state when the first and second movable contacts are in contact with the respective first and second fixed contacts, and wherein the interconnection part is configured to provide a current path between the first and second movable contacts, wherein the interconnecting part is opened on a first side;
- wherein a first end of a first lever arm of the lever system is coupled to the first movable contact of the first vacuum interrupter, and wherein a second end of the first lever arm is coupled to the operating rod;
- wherein a first end of a second lever arm of the lever system is coupled to the second movable contact of the second vacuum interrupter, and wherein a second end of the second lever arm is coupled to the operating rod;
- wherein a first sliding part at the first end of the first lever arm is supported by the interconnection part and can slide linearly within a first sliding support on the interconnection part;
- wherein a second sliding part at the first end of the second lever arm is supported by the interconnection part and can slide linearly within a second sliding support on the interconnection;
- and
- wherein in a transition from an open state to the closed state the actuator is configured to move the operating rod to move the second end of the first lever arm and the second end of the second lever arm such that the first sliding part at the first end of the first lever arm and the second sliding part at the first end of the second lever arm move simultaneously within the first and second sliding supports respectively away from one another.