| 摘要 |
The invention relates to a device for locking a pluggable electrical unit in an enclosure of an electrical base unit, the pluggable electrical unit having at least one arresting element, which engages in a mating arresting element in the enclosure of the base unit in such a way that the physical removal of the pluggable electrical unit is prevented in the locked state. For the slot-dependent detection of the actuation of locking elements on the part of the base unit, it is proposed to arrange the arresting element (21) such that, in the rest position, it is concealed by a movable covering (24) in such a way that the arresting element (21) is only accessible once the covering (24) has been removed. The covering (24) is in operative connection with an electrical switching contact (25), each position of the covering (24) deviating from the rest position triggering the switching contact (25). The covering (24) can only be brought into the rest position in the locked state of the pluggable electrical unit (2). The terminals of the switching contact (25) are electrically connected to a signal processing means (12) in the base unit (1).
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