Circuit Breaker External Accessories

Electric operating mechanism: This is an accessory used for remote automatic opening and closing of circuit breakers. There are two types of electric operating mechanisms: motor operating mechanism and electromagnet operating mechanism. The motor operating mechanism is a plastic case circuit breaker shell. The electromagnet operating mechanism is suitable for circuit breakers with a frame rating of 400A and above. The electromagnet operating mechanism is suitable for circuit breakers with a frame rating of 225A and below. Whether they are electromagnets or motors, their attraction and rotation directions are the same. Closing and opening are achieved by the position of the cam inside the electric operating mechanism. When the circuit breaker is operated by the electric operating mechanism, it should be able to ensure reliable closing of the circuit breaker at any voltage between 85% and 110% of the rated control voltage.
Rotating operating handle: Suitable for plastic case circuit breakers. A mechanism for rotating the operating handle is installed on the cover of the circuit breaker. The rotating shaft of the handle is installed in the matching hole of the mechanism. The other end of the rotating shaft passes through the door hole of the drawer cabinet. The rotating handle is The handle is installed on the rotating shaft head exposed on the door of the complete device, and the round or square seat of the handle is fixed on the door with screws. This installation allows the operator to turn the handle clockwise or counterclockwise outside the door to Make sure the circuit breaker is closed or open. At the same time, rotating the handle can ensure that the cabinet door cannot be opened when the circuit breaker is closed; only when the rotating handle is open or re-buckled, the switch panel door can be opened. In an emergency, when the circuit breaker is "closed" and you need to open the door panel, you can press the red release button on the side of the rotating handle seat.
Extended handle: It is an external extended handle, which is directly installed on the handle of the circuit breaker. It is generally used on large-capacity circuit breakers of 600A and above for manual opening and closing operations.
Handle locking device: a clamp is installed on the handle frame, a hole is punched in the handle and then locked with a padlock. Mainly used when the circuit breaker is closed.
In the working state, other people are not allowed to open the circuit breaker and cause a power outage accident, or the load side circuit of the circuit breaker needs to be repaired or power is not allowed to prevent others from closing the circuit breaker by mistake.