LEGBXF66-40420-10-V Circuit Protection

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Circuit breakers are electric devices that are designed to protect against overloads and short circuits. The LEGBXF66-40420-10-V is a circuit breaker manufactured by CAGI Technologies, that is designed to provide a reliable source of power protection in residential and commercial applications. In this article, we will discuss the LEGBXF66-40420-10-V\'s application field and working principle.The LEGBXF66-40420-10-V is designed for both residential and commercial applications. It is suitable for use in single and three phase residential or commercial applications, with the ability to handle up to 42 amps of power. This circuit breaker is designed to be installed in areas with temperatures ranging from -25 to +50°C, with an operating frequency that ranges from 50/60Hz. The LEGBXF66-40420-10-V has a short-circuit breaking capacity of 10,000A or 20,000A and a short-circuit current rating of 100kA at 440V.The working principle of the LEGBXF66-40420-10-V is based on the concept of thermal-magnetic protection. This protection has two main parts, the thermal section and the magnetic section. The thermal section utilizes an electric current to heat a bi-metallic strip. When the electric current exceeds the rated value, the bi-metallic strip will expand, tripping the breaker. The magnetic section of the circuit breaker utilizes a solenoid to move a ferromagnetic core. This core then creates a magnetic field generated by the current which acts as a trip mechanism. The combination of the two components provide an efficient and reliable source of power protection.In addition, the LEGBXF66-40420-10-V has a built-in LCD for easy viewing and it is UL (Underwriters Laboratories) approved. It is also equipped with an adjustable voltage trip range, adjustable time delay, and a manual reset button. This circuit breaker is easy to install and is suitable for both new and existing installations.In conclusion, the LEGBXF66-40420-10-V is a reliable source of power protection for residential and commercial applications. It employs both thermal-magnetic protection and has a built-in LCD for easy viewing. It is UL approved and is equipped with an adjustable voltage trip range and adjustable time delay. The LEGBXF66-40420-10-V can be used in single and three phase applications and is easy to install. 

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