LELK1-31818-30

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Circuit breakers are electrical devices that interrupt an electrical current when the current exceeds a predetermined threshold value. They are used to protect electrical circuits, wiring, and other components from overloads and short circuits. The LELK1-31818-30 is one example of a circuit breaker and is used in a variety of applications. This article will explore the application field and working principle of this circuit breaker.

Application Field

The LELK1-31818-30 is a residential and commercial circuit breaker designed for low-voltage applications. It is a DIN-rail, single-pole circuit breaker with a rating of 10A and a voltage rating of AC 12/24V. It is commonly used in indoor environments and can easily be installed in applications such as lighting, safety systems, and alarms. It is also suitable for controlling loads in home and business applications such as office buildings and industrial facilities.

Working Principle

The working principle of the LELK1-31818-30 circuit breaker is based on a bimetallic element embedded within the breaker. The bimetallic element is a long strip of two metals with different thermal expansion rates, such as copper and aluminum, which are attached together and then encased in an insulating material. When a current passes through the bimetallic element, the two metals expand at different rates due to their different thermal expansion rates. This causes the bimetallic element to bend, which in turn trips the circuit breaker and disconnects the circuit. The degree of bend can be adjusted by adjusting the current rating of the breaker.

Advantages

The LELK1-31818-30 circuit breaker offers several advantages over other types of circuit breakers. It is designed to provide protection against overloads, short circuits, and ground faults, which can cause significant damage to components. It also offers a high level of accuracy and is designed to trip quickly when the current exceeds its rating. Additionally, the DIN-rail design of the breaker allows for easy installation and a more secure connection.

Limitations

While the LELK1-31818-30 circuit breaker is suitable for many applications, it is not suitable for all applications. It is not intended to be used in applications with higher voltage or current ratings. Additionally, the bimetallic elements in the breaker can wear out over time and will need to be replaced periodically.

Conclusion

The LELK1-31818-30 circuit breaker is a single-pole DIN-rail circuit breaker designed for low-voltage applications. It is commonly used in residential and commercial settings and is suitable for controlling loads in home and business applications such as lighting, safety systems, and alarms. The breaker works based on a bimetallic element that bends and trips the breaker when the current exceeds its rating. It offers a number of advantages, such as protection against overloads and short circuits, accuracy, and an easy installation process. However, it is not suitable for all applications and the bimetallic element can wear out over time.

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