Electric switch

An electric switch comprising:

• a frame;
• a first stationary contact stationarily fixed to the frame;
• a contact support element adapted to move relative to the frame between a first position and second position;
• a movable contact stationarily fixed relative to the contact support element, having a longitudinal direction, and having a first contact portion such that in the first position of the contact support element the first contact portion is electrically conductively connected to the first stationary contact, and in the second position of the contact support element the movable contact is disconnected from the first stationary contact;
• a first arc shutter adapted to enhance extinguishing of electric arcs between the first stationary contact and the first contact portion of the movable contact during an opening event between the first stationary contact and the first contact portion of the movable contact, wherein the first arc shutter is made of electrically insulating material, and movable relative to both the frame and the contact support element;
• and
• an actuation system for moving and guiding the first arc shutter during the opening event, the actuation system including at least one first actuator member stationarily fixed relative to the frame, and at least one second actuator member stationarily fixed relative to the first arc shutter, wherein the at least one first actuator member and the at least one second actuator member are adapted to co-operate with each other during the opening event for moving and guiding the first arc shutter,
• wherein the first arc shutter is adapted to move in an outward direction during the opening event, wherein the outward direction is parallel to the longitudinal direction of the movable contact, and is directed towards a free end of the first contact portion, and
• wherein the first arc shutter surrounds a section of the first contact portion such that on a plane perpendicular to the longitudinal direction of the movable contact, a projection of the first contact portion is inside a projection of the first arc shutter,
• wherein the at least one first actuator member includes a guide groove, and the at least one second actuator member includes a pin, and
• wherein the guide groove and the pin are adapted to co-operate with each other during the opening event for moving and guiding the first arc shutter.