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Circuit Breakers

UPL111-5871-2 circuit breakers are the most widely used in industrial, commercial and residential applications. UPL111-5871-2 is a type of circuit breaker that has been designed to detect and prevent electrical currents from exceeding a certain threshold, then automatically disconnecting the power before a serious problem develops.

Application Fields

UPL111-5871-2 circuit breakers are often used in the power distribution system to provide protection against both overloads and short circuits. Additionally, these circuit breakers can also be used to protect a variety of electrical appliances, motors and generators, as well as various kinds of electronic equipment. With their compact size and easy installation, UPL111-5871-2 circuit breakers are even suitable for use in small residential and commercial spaces.

Working Principles

UPL111-5871-2 circuit breakers use a technique called inverse time tripping, which allows them to trip faster as they sense a greater amount of current than normal. This would decrease the risk of electrical damage and improve safety conditions. Inverse time tripping is achieved by using a temperature sensitive element. This element senses the rise in current and consequently the temperature, which will increase as the current flow increases. When the temperature rises above a certain set-point, the circuit breaker will trip and disconnect the circuit.

In addition to inverse time triping, UPL111-5871-2 circuit breakers also incorporate a thermal-magnetic trip unit. This unit uses both thermal and magnetic forces to detect and suppress high current levels. The thermal part of the unit senses the rise in current and trip the circuit breaker when the current exceeds a predetermined switch-on limit. The magnetic part of the trip unit detects short circuits, and trips the circuit breaker when the current level reaches a predetermined level.

UPL111-5871-2 circuit breakers can also be equipped with an integrated circuit breaker technology, called E-Circuit. This technology helps to monitor the load current passing through the breaker and allows it to recognize dangerous operating conditions more accurately. Some UPL111-5871-2 circuit breakers even include a built-in timer that can monitor and track the time an overload condition occurred. This will help to provide more reliable and accurate circuit protection.

Conclusion

UPL111-5871-2 circuit breakers are a great choice for a wide variety of applications. With their compact size, ease of installation and advanced safety features, these circuit breakers offer superior protection against both overloads and short circuits. In addition, UPL111-5871-2 circuit breakers can be equipped with an integrated circuit breaker technology to provide even more reliable protection.

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