Patent ID: 7633726

Claim:
A circuit interrupting device comprising: a housing; a pair of power input conductors, wherein each of said pair of power input conductors comprises a flexible power input metal sheet having a movable contact; a pair of power output conductors, wherein each of said power output conductors comprises a pair of fixed contacts; a pair of power output ends, wherein each of said power output ends comprises a flexible power output metal sheet having a movable contact; a release apparatus capable of tripping said circuit interrupting device to cause electrical discontinuity between said pair of power input conductors, said pair of power output conductors, and said pair of power output ends when a fault occurs; a primary electromagnetic coil capable of being energized and de-energized so as to control said release apparatus; and a secondary electromagnetic coil capable of controlling said release apparatus when said primary electromagnetic coil fails; wherein when said primary electromagnetic coil fails, said secondary electromagnetic coil is turned on to allow said electric current to pass through said secondary electromagnetic coil to trip said release apparatus.