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Circuit Breakers

Circuit breakers are an important protective device in the power distribution system. These devices are developed to protect electrical equipment from damage and excessive loads. They are also used to minimize the possibility of electrical fire hazards.

BR2C4UC is a type of circuit breaker that is used for the protection of any electrical system. This type of circuit breaker has a thermal-magnetic trip unit and a quick response Bimetallic strip. It is built with high breaking capacity and is designed to protect against short circuit and overcurrent conditions.

Application Field

BR2C4UC circuit breakers are designed to operate in low voltage systems (less than 1000 Volts AC). It is typically used in commercial, industrial and mining applications such as power plants, elevator systems, air conditioning systems and powering of large machines. It can be used to protect against short-circuit, overload and earth leakage current.

Working Principle

BR2C4UC circuit breakers are composed of a thermal-magnetic trip unit, current transformers and a bimetallic strip. The thermal-magnetic trip unit is a small device that senses the amount of current flowing through the device. The current transformer is a device which transforms the high current to a low voltage so that the trip unit can detect it. The bimetallic strip is a device which bends when subjected to high temperatures, pushing the trip unit into the circuit breaker opening in order to interrupt the electrical flow.

The thermal-magnetic trip unit has two sensing elements: one that senses the current and the other that senses the temperature. The first element allows the unit to detect any overloads, while the second element allows it to detect high temperature. When both elements detect any abnormality, the trip unit will activate, causing the bimetallic strip to bend, which opens the circuit breaker.

Conclusion

BR2C4UC circuit breakers are important protective devices that are designed to offer protection against short circuit and overcurrent conditions. The thermal-magnetic trip unit, current transformers and bimetallic strip are the main components of the device and allow it to detect any abnormality in the power system. They are primarily used in low voltage systems and can be used in commercial, industrial and mining applications.

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