R21-2-1.00A-R01IH-V

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Circuit breakers are essential components of modern electrical systems. They are used to protect circuits and equipment from damage due to overloads and short circuits. The R21-2-1.00A-R01IH-V circuit breaker is one such device. In this article, we will discuss the application field and working principle of this circuit breaker.

The R21-2-1.00A-R01IH-V circuit breaker is designed for use in residential, commercial, and industrial applications. It is rated for a current rating of up to 2.1A and a voltage of 500 VAC. It is UL 489 and UL 1077 listed. This type of breaker is suitable for use in a variety of applications, such as heating and ventilation, lighting, and motor-controlled equipment.

The working principle of a circuit breaker is relatively simple. When the current passing through a circuit exceeds its rated rating, the contacts of a circuit breaker will heat up, which will cause the heat to expand. As the metal on the contacts expand, it will cause the contacts to open and create an interruption in the circuit, thus protecting it from further damage due to the overload. The same process occurs in case of a short circuit, although the contacts will open much quicker.

The R21-2-1.00A-R01IH-V circuit breaker is designed with a thermal-magnetic trip mechanism. This mechanism employs both thermal and magnetic elements in order to protect the circuit. The thermal element is designed to sense and respond to an overload on the circuit. When the current in the circuit exceeds the rated value, the thermal element will cause the circuit breaker contacts to open, thus interrupting the circuit. The magnetic element is used to sense short circuits. When a short circuit is detected, the magnetic element will cause the circuit breaker to open much quicker than the thermal element.

The R21-2-1.00A-R01IH-V circuit breaker is also equipped with an auxiliary contact that can be used to monitor the status of the circuit and report any faults. This contact can be used to activate signals, alarms, and other systems when the circuit breaker trips. The breaker also has a visual indicator which will show the current state of the breaker, and a manual reset button which can be used to reset the breaker and restore power if needed.

To sum up, the R21-2-1.00A-R01IH-V circuit breaker is a reliable, versatile device for residential, commercial and industrial applications. It can provide protection from electrical overloads and short circuits, and the auxiliary contact allows for monitoring and reporting of faults in the circuit. This circuit breaker can be used in a variety of applications, ranging from heating and ventilation, lighting, and motor-controlled equipment.

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