LELK12-36555-1-V Circuit Protection

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Circuit Breakers

A circuit breaker is an important safety device used to prevent overloading of electrical circuits. The LELK12-36555-1-V is a type of industrial-grade circuit breaker typically used for commercial and industrial applications. This circuit breaker is designed to break circuits and protect them from overloads and short circuits. In this article, we will discuss the application field and working principle of the LELK12-36555-1-V circuit breaker.

Application Field

The LELK12-36555-1-V circuit breaker has a rated current of up to 800A and a rated voltage of up to 690V. This makes it suitable for a wide variety of applications, including commercial installations, industrial motors, and building lighting. Its high current rating means that it can endure more abuse than a residential-grade circuit breaker, and its relatively low cost makes it a popular choice for light commercial applications.

Working Principle

The LELK12-36555-1-V circuit breaker is a type of thermal-magnetic circuit breaker. This type of circuit breaker is designed to detect changes in current that could indicate a short-circuit or overload hazard. When a short-circuit or overload is detected, the current flowing through the circuit breaker trips its contact mechanism, which shuts off the circuit breaker. The breaker can then be reset to restore the circuit.

The mechanism used to trip the circuit breaker is composed of two parts. The first part is a thermal device, which trips in the event of an overload. The thermal device is made of a silicone-filled bimetallic strip, which bends when heated. As the temperature of the bimetallic strip increases, the amount of current flowing through the circuit breaker is decreased. If the current flow is too high for a sustained period of time, the bimetallic strip will bend and trip the circuit.

The second part of the mechanism is a magnetic device. This device is composed of a solenoid and a set of contacts. In the event of an overload or short-circuit, the current flowing through the circuit causes the solenoid to move and the contacts to trip, which shuts off the circuit.

Conclusion

The LELK12-36555-1-V is an industrial-grade circuit breaker designed for commercial and industrial applications. Its rated current and voltage make it suitable for a wide variety of applications, including commercial installations, industrial motors, and building lighting. Its thermal-magnetic trip mechanism detects changes in current and trips the circuit when a short-circuit or overload is detected, so it can protect circuits from being overloaded and shorted.

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