Electrical rotary switch with closing elements at stationary contact locations inhibiting spark discharge and/or with a locking spring member

Electrical rotary switch comprising a housing accommodating at least a first rotary contact and a second rotary contact configured for being rotatable between a first and a second orientation about a common axis of rotation, a locking member, a spindle portion, a locking spring member comprising a first portion and a second portion, wherein the first portion comprises a resilient spring member configured for releasably engaging the locking member and the second portion is configured for mechanically coupling to the spindle portion for imparting a rotational force on at least one rotary contact of the switch,

• wherein the second portion is electrically insulating,
• and at least a first stationary contact, a second stationary contact, a third stationary contact and a fourth stationary contact,
• the first stationary contact comprising a contact portion configured for being contacted by the first rotary contact and comprising a connection portion for connecting to a conductor,
• the second stationary contact comprising a contact portion configured for being contacted by the second rotary contact and comprising a connection portion for connecting to a conductor,
• the third stationary contact comprising a contact portion configured for being contacted by the first rotary contact concurrently with the first stationary contact,
• the fourth stationary contact comprising a contact portion configured for being contacted by the second rotary contact concurrently with the second stationary contact,
• wherein the first and second stationary contacts are configured offset in the axial direction and the angular direction with respect to the common axis of rotation and
• wherein the first and second rotary contacts are configured for concurrently contacting the respective stationary contacts, in the first rotary orientation about the common axis of rotation,
• wherein the first and second rotary contacts disconnect the respective stationary contacts in the second rotary orientation about the common axis of rotation.

Electrical rotary switch comprising:

• a housing for a rotary electrical switch comprising at least one rotary contact and at least one stationary contact,
• the at least one stationary contact comprising a contact portion configured for being contacted by the rotary contact and a connection portion for connecting to a conductor,
• wherein the housing comprises a rotary contact space for accommodating the rotary contact,
• a plurality of stationary contact spaces for selectively accommodating the at least one stationary contact, and
• wherein the housing comprises one or more closing elements for closing one or more of the stationary contact spaces not in use for accommodating a stationary contact.