The opening and closing operations of the circuit breaker can be manual, electric or remote control operations.

The operating mechanism adopts a miniaturized spring operating mechanism and is placed in a sealed mechanism box, which solves the problem of corrosion of the operating mechanism and improves the reliability of the mechanism.

The circuit breaker adopts a three-phase pillar structure and has the characteristics of stable and reliable opening and closing performance, no risk of combustion and explosion, no maintenance, small volume, light weight and long service life.

The three-phase pillar and current transformer adopt epoxy resin solid insulation or indoor epoxy resin coated with silicone rubber solid insulation, which has the characteristics of resistance to high and low temperatures, ultraviolet rays and aging.

The circuit breaker body is miniaturized designed and adopts a fully sealed structure and unique arc extinguishing chamber packaging technology. The sealing performance is good, which helps to improve the moisture-proof and condensation-proof performance, and is suitable for use in high temperature and humid areas.

The circuit breaker can be equipped with two-phase or three-phase CT and zero sequence CT to realize overcurrent protection and low current grounding protection, and can also provide current collection information to the intelligent controller. According to the user’s request, a current transformer for metering can be added.

The circuit breaker can be externally equipped with a three-phase linked disconnector. There is an obvious visible fracture in the open state of the disconnector and has an anti-misoperation interlock device with the circuit breaker body. When the circuit breaker is in the closed state, the disconnector cannot perform opening and closing operations; only when the disconnector is completely closed or completely opened can the circuit breaker be operated.