Patent ID: 9673011
Date: 2017-06-06
CPC Classifications: H01H

Claim:
1. A circuit breaking system, comprising: a power circuit whose voltage is greater than 600 volts; at least a current detection device in the power circuit where the current detection device comprises a current reduction unit providing a reduced output current; at least a circuit breaking device in the power circuit electrically connected to the current detection device for selectively opening the power circuit; a linking device in the vicinity of the circuit breaking device; and at least an actuation device electrically connected to the current detection device where the actuation device engages the circuit breaking device to open the power circuit through the linking device when the output current from the current reduction unit exceeds a preset value of the actuation device; wherein the actuation device comprises a heat sensing element which causes the actuation device to engage the linking device when accumulated heat results in a change reaching a threshold.