Abstract: To permit the locking of a displaceable door (1), comprising a door frame (2, 3, 4, 5, 6), which gives the door mechanical stability and a door leaf (3), which is attached to the door frame (2, 3, 4, 5, 6), the door leaf (8) is configured so that it can be displaced in relation to the door frame (2, 3, 4, 5, 6). The door leaf (8) is allocated first locking elements (12a, b), which can be locked and unlocked with second locking elements (12c, d) that are allocated to the switchgear cabinet frame by the displacement of the door leaf (8).

Abstract: A circuit breaker arrangement, in particular, an air-insulated medium-voltage switching arrangement having function features including “circuit breaking,” “disconnection” and “grounding” features, is described. The circuit breaker arrangement includes a switching module that is formed from function-oriented modular components. The module components including a base module component, a pole module component and a drive module component. The base module component is fixedly connected with the drive module component; the pole module component is arranged so as to be movable in a strait line thereon. Such a circuit breaker arrangement is used for energy supply and distribution, in particular, in medium voltage technology.

Abstract: Switching operations in a switchgear assembly, in particular a medium-voltage switchgear assembly, are carried out via a control apparatus. The control apparatus has an electronic memory card for variable storage of control data which automatically initiate the switching operation or each switching operation. The control process then takes place exclusively via the memory card. The memory card is inserted into a card reader in the switchgear assembly. After this, an automatic sequence of the desired switching operations takes place using a switching program stored in advance in the memory card.