IEGHS111-26774-1-V Circuit Protection

Circuit Breakers: IEGHS111-26774-1-V Application Field and Working Principle

Circuit breaker is an important electrical safety device used to protect an electrical circuit from damage caused by excess current from an overload or short circuit. The series IEGHS111-26774-1-V is a kind of circuit breaker. It applies to interchange of AC 50/60Hz, rated voltage 660V, rated current 6A-125A, and electric breaking capacity of 10kA. Let’s learn about its application field and working principle.

Application Field of IEGHS111-26774-1-V

The rated current of IEGHS111-26774-1-V ranges from 6A to 125A. This type of circuit breaker can be used in electric control systems of industrial and mining enterprises, electric heating systems, infrequent start and conversion of motors, domestic lighting systems and power distribution of cities and towns.

It can be used as AC circuit breaker, made-to-measure AC contactor for motor starter and matching contactor for relay protective device. It can also be applied for automatic changeovers of communication systems, distribution systems, infrequent start and stop of electric motors, isolation of fault current, general lighting, power loading, power distribution and other occasions.

Working Principle of IEGHS111-26774-1-V

The IEGHS111-26774-1-V circuit breaker is composed of arc extinguishing device, operating mechanism, connecting terminals, etc. The circuit breaker works under the action of the operating mechanism. The arc extinguishing medium is air, vacuum, SF6, insulating oil and so on. According to the rated current, the larger the current, the stronger the arc extinction ability must be.

The arc extinguishing device divides the circuit breaker into several classifications, including air circuit breaker, oil circuit breaker, SF6 circuit breaker and vacuum circuit breaker. Depending on the operating mechanism, the circuit breaker can be classified into three categories: electromagnetic operation, thermal operation and mechanical operation. The operating mechanism works according to the instructions of the manual switch and completes the switching of the contact.

Conclusion

The IEGHS111-26774-1-V circuit breaker is a kind of electrical safety device for protecting electrical circuits from damage caused by overload, short circuit or other fault conditions. Its application field can be used in industrial and mining enterprises, electric heating systems, infrequent start and conversion of motors, domestic lighting systems and power distribution of cities and towns. The operating mechanism of IEGHS111-26774-1-V can be divided into three categories: electromagnetic operation, thermal operation and mechanical operation. It is important for us to understand the working principle and application field of the circuit breaker in order to ensure electrical safe.