POWER VENDING CIRCUIT BREAKER

摘要

A circuit breaker (2) for an electric load (4) includes first (12) and second (18,20) terminals; a number of first separable contacts (48) each electrically connected between one of the first terminals and one of the second terminals; a first mechanism (50) to open, close or trip open the first contacts; a number of second separable contacts (24) each electrically connected in series with a corresponding one of the first contacts; a second mechanism (54) to open or close the second contacts; a processor (68) to cause the second mechanism to open or close the second contacts, annunciate through one of the second terminals (22) a power circuit electrical parameter for the electric load (4), receive from a number of the second terminals (22) a confirmation from or on behalf of the electric load to cause the second mechanism to close the second contacts, and determine a fault state operatively associated with current flowing through the second contacts.