LELK111-39654-20-V Circuit Protection

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Circuit breakers are vital components of any electrical supply system as they are used for controlling, protecting and switching electrical circuits in a variety of applications. They are used to provide arc fault protection from high-voltage surges or overloads and to protect against damage to the system and its personnel. Circuit breakers come in a variety of types, from the simplest manual versions to more complex electronic versions with advanced features. The LELK111-39654-20-V is a type of Circuit Breakers used in industrial settings.

The LELK111-39654-20-V is a one pole, 45 Amp circuit breaker with a thermally-sensitive element. It is designed for use in 240/277 volt applications up to 32 Amps. It has several features that make it ideal for industrial applications, including an adjustable current trip mechanism that can be adjusted in the field to provide extra protection from abnormal overload currents, while still allowing normal current flow. The adjustable current trip mechanism also helps reduce nuisance tripping when minor current changes occur.

This circuit breaker also features a manual reset, which can be used to adjust the current trip point and to reset the circuit breaker after a trip due to overload. Additionally, the circuit breaker features current limiting protection, which helps protect devices from high levels of current that would cause excessive heat and arcing. This type of circuit breaker also has a visible indicator light, which can be seen when the breaker is tripped, helping to visually alert workers and technicians of a potential problem.

The working principle of the LELK111-39654-20-V circuit breaker involves an internal bi-metal strip that acts as a temperature sensing element. This bi-metal strip is connected in series with the circuit, and is heated when current passes through it. If the current exceeds the rating of the breaker, the bi-metal strip will rapidly heat up, causing it to bend and open the circuit. The breaker will trip, interrupting the current flow, and the indicator light will turn on.

The LELK111-39654-20-V circuit breaker is ideal for protecting electrical systems and equipment against overload and short circuits in industrial settings. It is widely used in different industrial applications such as machine tools, pumps, motors, and transformers, as well as in commercial and residential settings. Its adjustable current trip feature, along with its current limiting protection, makes it ideal for installations that require precision current control and reliable protection.

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