H - Electricity – 01 – H
Patent
H - Electricity
01
H
H01H 71/24 (2006.01) H01H 83/10 (2006.01) H02H 3/20 (2006.01) H02H 7/22 (2006.01) H02H 3/33 (2006.01)
Patent
CA 2411238
A circuit breaker includes a line terminal adapted to receive a line voltage having a nominal voltage value and an excessive voltage value, a load terminal, one or more neutral terminals, and separable contacts electrically connected between the line and load terminals. An operating mechanism opens and closes the separable contacts. A trip circuit cooperates with the operating mechanism to trip open the separable contacts. The trip circuit includes a solenoid having a trip coil with a threshold voltage for energization, a circuit adapted to detect an arc fault or ground fault trip condition and to responsively energize the trip coil with the line voltage, and a MOV adapted to detect an excessive voltage condition associated with the load and neutral terminals and to responsively energize the trip coil with at least the threshold voltage.
Elms Robert Tracy
Natili Thomas Edward
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Corporation Eaton
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