Electric switch

An electric switch comprising:

• a frame;
• a first stationary contact stationarily fixed to the frame;
• a roll element configured to rotate relative to the frame about a rotation axis between a first position and a second position;
• a rotating contact stationarily fixed to the roll element, the rotating contact comprising a first contact portion such that in the first position of the roll element the first contact portion is electrically conductively connected to the first stationary contact and in the second position of the roll element the rotating contact is disconnected from the first stationary contact;
• and
• a plurality of arc extinguisher members configured to extinguish an electric arc generated during an opening event between the first stationary contact and the first contact portion of the rotating contact wherein:
• the plurality of arc extinguisher members is located adjacent to a path of the first contact portion,
• each of the plurality of arc extinguisher members comprises a body part made of electrically conducting material,
• the plurality of arc extinguisher members comprises a guide protrusion system configured to guide the electric arc to a tortuous path in which the electric arc advances in the plurality of arc extinguisher members in a lateral direction parallel to the rotation axis thereby lengthening the electric arc, and
• the guide protrusion system comprises a plurality of guide protrusions each protruding from the body part of the corresponding arc extinguisher member towards an adjacent arc extinguisher member and configured to provide the shortest route for the electric arc between the two arc extinguisher members.