FIELD: electricity.
SUBSTANCE: invention is related to the field of electrical engineering. Lock device with key for automatic circuit breaker comprises support frame, cases for keys, hooks, clamping elements, locking element and locking part. Locking element may be arranged with the possibility to prevent displacement of structure for changeover of automatic circuit breaker into switched-off condition in process of linear motion due to key rotation. Locking part of case may extend from spring part in direction of external side of support frame with the possibility of entry into spring and displacement in process of several hooks rotation. Each of several hooks comprises connecting part with hole and ledge at one of sides, directed towards the side of locking element, and intended for connection with case for key. Several contact parts of locking element may be serially arranged in case of locking element so that they are in contact with ledges of several hooks with the possibility of interaction with them, accordingly.
EFFECT: reduced assembly space and improved reliability of locking condition.
5 cl, 18 dwg
