LEL1-30645-4

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Circuit breakers are a vital component of power systems and are used to protect electrical systems and components from damage caused by overloads, short circuits and ground faults. The LEL1-30645-4 circuit breaker is specifically designed to meet the needs of both high and low-tension power systems. This article will discuss the application field and working principle of the LEL1-30645-4 circuit breaker.

The LEL1-30645-4 circuit breaker is a two pole, three phase thermal overload circuit breaker certified to the IEC 60947-2 standard. It is designed for use in industrial and commercial applications, and is suitable for use with electrical loads up to 645A. It is capable of interrupting up to 100kA for a duration of up to 3 seconds in the event of an overload, short circuit or ground fault. The circuit breaker is available in both direct and indirect trip versions, which are suitable for use with branch circuits, motor control centers, and a variety of control panels.

The working principle of the LEL1-30645-4 circuit breaker is based on the bimetallic thermal overload principle. The bimetallic strip used in this circuit breaker is composed of two different metals that have different coefficients of thermal expansion. When an overload occurs, the strip is heated and causes the contacts to be opened. In addition to this, the design of the LEL1-30645-4 circuit breaker includes an adjustable trip curve that can be used to adjust the current rating for different types of loads.

The LEL1-30645-4 circuit breaker also features a number of protection functions in order to ensure reliable operation and protection against short circuits and overloads. These protection functions include electrical overload protection, which is used to detect and interrupt current that is exceeding pre-determined limits. It also includes short-circuit protection, which is used to detect and interrupt the current in the event of an electrical fault. The circuit breaker also includes ground fault protection, which is used to detect and interrupt current flow in the event of a ground fault.

In addition, the LEL1-30645-4 circuit breaker includes a number of other features, such as a manual/automatic operating switch, an on/off indicator, and an adjustable thermal trip element. The manual/automatic switch allows users to manually override the automatic operation of the circuit breaker. The on/off indicator provides users with visual confirmation that the circuit breaker is in the correct position. Lastly, the adjustable thermal trip element can be used to tailor the circuit breaker’s current rating for different types of loads.

The LEL1-30645-4 circuit breaker is an excellent choice for industrial and commercial applications. It is designed to meet the needs of both high and low-tension power systems, and is capable of providing reliable protection for electrical systems and components from damage caused by overloads, short circuits and ground faults. Additionally, its numerous protection functions, manual/automatic operating switch, and adjustable thermal trip element make the LEL1-30645-4 circuit breaker an ideal choice for a variety of applications.

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