Remote control residential circuit breaker

H - Electricity – 01 – H

Patent

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Details

H01H 75/10 (2006.01) H01H 73/12 (2006.01) H01H 89/06 (2006.01) H01H 1/54 (2006.01) H01H 47/06 (2006.01) H01H 50/66 (2006.01) H01H 71/04 (2006.01) H01H 71/46 (2006.01) H01H 71/52 (2006.01)

Patent

CA 2078473

A remote control residential and commercial lighting and appliance branch circuit breaker (20) provides both overload current protection and load management. Structure is provided enabling packaging in a three-quarter inch width case (22), including a first set of contacts in the case provided by a pair of separable overload breaker contacts (44, 46), trip structure (48) in the case for causing separation of the overload breaker contacts in response to overload currents therethrough, a second set of contacts in the case provided by a pair of switching relay contacts (150, 152) having open and closed conditions and electrically connected in series with the overload breaker contacts (44, 46), and an actuator (154) in the case energizable to mechanically actuate the switching relay contacts. Feedback circuitry (FIG. 13) is included providing status indication of the condition of the switching relay contacts. Structure is provided for reducing actuator and spring requirements and sizes.

Cette invention concerne un disjoncteur (20) télécommandé pour circuits d'éclairage et de chauffage commerciaux et domestiques qui offre à la fois une protection contre les courants de surcharge et une capacité de gestion de la puissance appelée. La construction ramassée du disjoncteur permet de le loger dans un boîtier ayant 3/4 po de largeur; elle comprend une première série de contacts séparables en cas de courant de surcharge (44, 46), un mécanisme de déclenchement (48) entraînant la séparation des contacts à la détection d'un courant de surcharge, une deuxième série de contacts de relais de commutation (150, 152) à positions ouverte et fermée et raccordés en série avec les contacts de coupure en cas de surcharge et un actionneur (154) à télécommande servant à déplacer les contacts du relais de commutation. Un circuit de contrôle (fig. 13) est prévu pour indiquer la position des contacts du relais de commutation. L'objet de l'invention est dimensionné en fonction d'une réduction de la grosseur et de la force des ressorts et actionneurs.

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