Patent ID: 7479858
Filing Date: 2009-01-20
Classification: H01H,Y02B,Y04S

Abstract:
1. A contactor-circuit breaker comprising: power conductors comprising separable fixed and mobile contacts, a contact control mechanism comprising at least one multi-pole device for putting said contacts in a closed or open state, a control electromagnet connected to said contact control mechanism for receiving a deliberate control signal on a control line and acting in response to such control signal to cause the contact control mechanism to put the contacts in closed or open state, a protection device comprising means for detecting currents on said power conductors and means for generating a trip signal on a trip line in response to detection of an electrical fault, wherein an electromagnetic tripping device is associated with the control mechanism, and the protection device is connected to the control electromagnet through said control line and to the control mechanism through said trip line, such that the protection device is for outputting electrical power for the control electromagnet on the control line and a trip signal to said electromagnetic tripping device on the trip line.