Contact system and rotary switch

The utility model provides a contact system and a rotary switch, and relates to the technical field of low-voltage electrical appliances, the contact system comprises a base, a moving contact assembly and a static contact assembly, the moving contact assembly and the static contact assembly are arranged in the base, and the moving contact assembly comprises a contact turntable and a moving contact arranged on the contact turntable. The static contact assembly comprises two static contacts and two static contact pins which are arranged on the side face of the contact rotating disc, the two static contact pins are connected with the two static contacts respectively, and the contact rotating disc drives the moving contact to rotate so that the two ends of the moving contact can make contact with the two static contacts at the same time to be switched on or separated from the two static contacts to be switched off. And the orthographic projection of at least one static contact pin on the rotating plane of the con