Circuit Breaker Gearbox

Product Description

The ZHAOWEI Micro Drive System is used for automatic circuit-reclosing, i.e., a small circuit breaker. The multi-stage helical worm gear helps enhance the system’s service life and performance of automatic circuit-reclosing, and executes the intelligent opening and closing of circuit breakers. An intelligent reclosing device, or circuit breaker, is normally installed as an effective anti-accident measure on overhead power lines - not applicable to general cable power lines. In other words, when the line fails, the relay protection causes the circuit breaker to trip. The automatic reclosing device recloses the circuit after a short time period, thereby improving power supply reliability of the power system. Line faults, usually caused by lightning strikes, wind damage, etc., are temporary. After the circuit breaker trips, the insulation performance, consisting of insulators and air gaps, of the line can be restored, and the recloser can then reclose the circuit.


  1. Enhances the effectiveness of transmission lines.
  2. Improving the stability of system operation.
  3. Avoids accidental-circuit breaker tripping.
  4. Speeds up voltage recovery of the power system after accidental tripping. 


In addition to circuit breaker, we also provide solutions for conveyor electric drum, peristaltic pump feed mixer, switch valve, control valve, electric screwdrivers, seismic testing equipment and vending machine.   

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ZHAOWEI team is glad to help you choose the right micro gear motor to optimize your application. Please fill out the form below with the necessary information and our representative will respond to you as soon as possible.

Customer Service

ZHAOWEI’s micro drive systems apply in diverse areas all around the world to deliver the power, precision, and efficiency to motion solutions. Our sales and engineering support teams are ready to assist you with any questions, including quotation, application support, and product configuration. Please submit your requirements through our Custom Service Form to ensure a faster response.

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