A mechanical operating assembly for a bistable relay, the mechanical operating assembly comprising: a bracket being mounted to the bistable relay; an actuating mechanism being mounted to the bracket, including an actuating member and a first transmitting member, wherein the first transmitting member is connected to a paddle of the bistable relay, and the actuating member is configured to move the first transmitting member when actuated, thereby moving the paddle of the bistable relay, such that the bistable relay is switched from a first state to a second state; a reset mechanism being mounted to the bracket, including a reset member and a second transmitting member, wherein the second transmitting member is in contact with the first transmitting member, and the reset member is movable between an initial position in which the reset member is not in contact with the second transmitting member, and a reset position, wherein when the reset member moves from the initial position to the reset position, the reset member is configured to contact the second transmitting member, so that the second transmitting member moves correspondingly, and the first transmitting member drives the paddle of the bistable relay to move, such that the bistable relay is switched from the second state to the first state, and wherein after the reset member reaches the reset position, the reset member is configured to be out of contact with the second transmitting member, wherein the second transmitting member is rotatably mounted on the bracket, the reset member includes a first matching member and a second matching member, the first matching member includes an inclined surface which abuts against the second matching member when the reset member moves from the initial position to the reset position, the first matching member includes a curved surface opposite to the inclined surface, and the second matching member abuts against the curved surface when the reset member moves to the reset position. a bracket being mounted to the bistable relay; an actuating mechanism being mounted to the bracket, including an actuating member and a first transmitting member, wherein the first transmitting member is connected to a paddle of the bistable relay, and the actuating member is configured to move the first transmitting member when actuated, thereby moving the paddle of the bistable relay, such that the bistable relay is switched from a first state to a second state; a reset mechanism being mounted to the bracket, including a reset member and a second transmitting member, wherein the second transmitting member is in contact with the first transmitting member, and the reset member is movable between an initial position in which the reset member is not in contact with the second transmitting member, and a reset position, wherein when the reset member moves from the initial position to the reset position, the reset member is configured to contact the second transmitting member, so that the second transmitting member moves correspondingly, and the first transmitting member drives the paddle of the bistable relay to move, such that the bistable relay is switched from the second state to the first state, and wherein after the reset member reaches the reset position, the reset member is configured to be out of contact with the second transmitting member, wherein the second transmitting member is rotatably mounted on the bracket, the reset member includes a first matching member and a second matching member, the first matching member includes an inclined surface which abuts against the second matching member when the reset member moves from the initial position to the reset position, the first matching member includes a curved surface opposite to the inclined surface, and the second matching member abuts against the curved surface when the reset member moves to the reset position. the second transmitting member is rotatably mounted on the bracket, the reset member includes a first matching member and a second matching member, the first matching member includes an inclined surface which abuts against the second matching member when the reset member moves from the initial position to the reset position, the first matching member includes a curved surface opposite to the inclined surface, and the second matching member abuts against the curved surface when the reset member moves to the reset position.