Circuit breakers refers to a switching device capable of closing, carrying and breaking the current under normal circuit conditions and closing, carrying and breaking the current under abnormal circuit conditions within a specified time. Circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of use. The division of high and low voltage boundaries is relatively fuzzy. Generally, those above 3kV are called high-voltage electrical appliances. The circuit breaker can be used to distribute electric energy, start asynchronous motor infrequently, and protect power lines and motors. When they have serious overload, short circuit, undervoltage and other faults, it can cut off the circuit automatically. Its function is equivalent to the combination of fuse switch and over / under heat relay. After breaking the fault current, there is no need to change the parts. At present, it has been widely used. In the generation, transmission and use of electricity, power distribution is an extremely important link. The distribution system includes transformers and various high and low voltage electrical equipment, and the low-voltage circuit breaker is a widely used electrical equipment. As one of our main products, circuit breakers are widely exported to Central Asia, Southeast Asia and other places. It mainly includes the following:

EPD surge protector: EPD plug-in type adopts the same working principle and selection criteria as fixed surge protection. Protect the surge affected by indirect lightning and direct lightning or other instantaneous overvoltage.

Eic1 AC contactor: it is mainly used for AC 50Hz or 60Hz rated voltage up to 660V and below, for long-distance connection and breaking circuit, and can be combined with corresponding specifications of thermal relay or electronic protector to form electromagnetic or electromechanical integrated motor starter.

Eats3 dual power conversion switch: two power supplies are used to ensure the reliability of power supply. A product can switch between two power supplies reliably. The product has two switching functions: auto switch and auto recover. This is a manual transfer switch with novel design, safe and reliable, high degree of automation, wide range of use.

Ew45 universal intelligent circuit breaker: it is mainly used to distribute electric energy and protect lines and power equipment from overload, short circuit, undervoltage, single-phase grounding and other faults. The circuit breaker has a variety of intelligent protection functions, which can be used for selective protection, with accurate action, avoiding unnecessary power failure, and improving power supply reliability and safety.

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