3120-F321-P7T1-W19FG4-8A

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Circuit breakers are electrical safety devices that are placed in-line with electrical systems in order to protect them from excessive current overloads that can result from an excessive demand for power. They are designed to sense an overloading of current, and react quickly by breaking the electrical connection, thus preventing dangerous levels of electricity from flowing through the system. The 3120-F321-P7T1-W19FG4-8A circuit breaker is an example of such a safety device. Its application field and working principle will be discussed in this article.

Application Field:

The 3120-F321-P7T1-W19FG4-8A circuit breaker is designed for use in general purpose applications. It can be used as a protection device in residential, commercial, and industrial electrical systems, and has a wide variety of applications. For example, it can be used to protect single-phase, three-phase, and arc-fault protection systems. Additionally, it is also suitable for applications that require quick response to over or under voltage, as well as for motor overload protection.

Working Principle:

The 3120-F321-P7T1-W19FG4-8A circuit breaker is designed so that it can sense the amount of current flowing through the system and quickly disconnect the power in the event of an overloading of current, thus preventing dangerous levels of electricity from continuing to flow through the system. This is done through the use of several components. These include a temperature-sensitive bi-metallic strip, pressure contact terminals, a set of springs, and a set of contacts. When the current through the circuit breaker passes a certain threshold, the bi-metallic strip bends, which causes the pressure contact terminals to move, which in turn causes the springs to compress and the contacts to open. When the contacts open, the circuit breaker is hit by a high voltage and the circuit breaker is tripped, thus disconnecting the power to the system.

Additionally, the 3120-F321-P7T1-W19FG4-8A circuit breaker also functions as a circuit protective device to prevent overcurrent damage. In this regard, it is equipped with a panel-mounted fuse which prevents excessive current from passing through the system. This is done by sensing the amount of current and, if the measured current surpasses a certain level, the fuse immediately disconnects the power, protecting the system.

Conclusion:

The 3120-F321-P7T1-W19FG4-8A circuit breaker is a general purpose device designed to sense an overload of current and quickly disconnect the power in order to prevent excessive currents from passing through the system. It is suitable for many applications, including single-phase, three-phase, and arc-fault protection systems, as well as for motor overload protection. It also comes equipped with a panel-fuse that functions as a circuit protective device. With its robust design and proven reliability, the 3120-F321-P7T1-W19FG4-8A circuit breaker is an ideal choice for many uses.

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