Patent ID: 6777628
Filing Date: 2004-08-17
Classification: H01H

Abstract:
A device for interlocking at least two single- or multipole circuit breakers, the circuit breakers comprising:a first circuit breaker having an enclosure that contains, for each pole, at learns one fixed contact and one movable contact that can be operatively coupled/uncoupled with respect to each other, actuation means suitable to provide the energy required to move the movable contacts, and a first opening/closure lever that protrudes outside said enclosure; and a second circuit breaker having an enclosure that contains, for each pole, at least one fixed contact and one movable contact that can be operatively coupled/uncoupled with respect to each other, actuation means suitable to provide the energy required to move the movable contacts, and a second opening/closure lever that protrudes outside said enclosure, wherein the device comprises: a first supporting bracket, suitable to be fixed to a mounting plate of said first and second circuit breakers; a second bracket, suitable to be fixed by virtue of fixing means to said first supporting bracket and to be supported thereby; and an interlocking element, provided with a contoured body that is operatively coupled to said second bracket so that it can move with respect to it, said interlocking element being suitable to be rigidly connected to the second bracket, by virtue of locking means, in a chosen position in which it interacts operatively with at least said first opening/closure lever in a condition that corresponds to the opening of the first circuit breaker, preventing its movement and preventing the first and second circuit breakers from being closed simultaneously.