A circuit breaker comprising: first and second contacts moveable with respect to each other between a closed state in which electrical current flows through said circuit breaker and an open state in which electrical current is prevented from flowing through said circuit breaker; a linkage assembly moveable between an engaged position and a disengaged position, wherein when in the disengaged position, said first and second contacts are in the open state; a remote actuator moveable between an on position and an off position, wherein when said linkage assembly is in the engaged position and when said remote actuator is in the on position, said first and second contacts are in the closed state, and wherein when said linkage assembly is in the engaged position and when said remote actuator is moved to the off position, said first and second contacts are moved with respect to each other to the open state; and a handle manually actuable between an on position and an off position, wherein when the handle is in the on position, the linkage assembly is in the engaged position and wherein when the handle is in the off position the linkage assembly is in the disengaged position; and a manual reset mechanism; characterized in that the manual reset mechanism, upon actuation when power has been lost to the remote actuator when the remote actuator is in the off position, moves the remote actuator to the on position, thereby resetting said first and second contacts to the closed state; and in that said manual reset mechanism is actuated, when power has been lost to the remote actuator when the remote actuator is in the off position, by moving the handle from the on position, to the off position and then back to the on position. first and second contacts moveable with respect to each other between a closed state in which electrical current flows through said circuit breaker and an open state in which electrical current is prevented from flowing through said circuit breaker; a linkage assembly moveable between an engaged position and a disengaged position, wherein when in the disengaged position, said first and second contacts are in the open state; a remote actuator moveable between an on position and an off position, wherein when said linkage assembly is in the engaged position and when said remote actuator is in the on position, said first and second contacts are in the closed state, and wherein when said linkage assembly is in the engaged position and when said remote actuator is moved to the off position, said first and second contacts are moved with respect to each other to the open state; and a handle manually actuable between an on position and an off position, wherein when the handle is in the on position, the linkage assembly is in the engaged position and wherein when the handle is in the off position the linkage assembly is in the disengaged position; and a manual reset mechanism; characterized in that the manual reset mechanism, upon actuation when power has been lost to the remote actuator when the remote actuator is in the off position, moves the remote actuator to the on position, thereby resetting said first and second contacts to the closed state; and in that said manual reset mechanism is actuated, when power has been lost to the remote actuator when the remote actuator is in the off position, by moving the handle from the on position, to the off position and then back to the on position.