AGRF400-2 Circuit Protection

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PTC Resettable Fuses are electrical components used to protect circuits and devices by dissipating excess current as heat. The AGRF400-2 is an example of such a component and is designed for use in a variety of power supply and industrial device applications. In this article, we will provide an overview of the AGRF400-2 application fields and working principles.

AGRF400-2 Application Fields

The AGRF400-2 is designed to be used in a variety of power supply and industrial device applications, including power supplies, appliances, consumer electronics, vehicle systems, and computer equipment. It is also suitable for applications requiring high voltage protection, such as LED lighting systems, transformers, switching power supplies, and solar inverters. With its current rating of 10A, the AGRF400-2 is able to handle a wide range of current applications.

AGRF400-2 Working Principle

The AGRF400-2 utilizes a proprietary PTC (positive temperature coefficient) technology that senses an over-current condition and responds by responding by allowing a predetermined amount of current to flow through the component. This PTC device consists of a metal oxide element that responds to heat due to an excessive current by becoming an insulator when the allotted current is reached. This in turn prevents further current from passing through the device. A rapid over-current can cause an even greater rise in temperature and permanent damage to the PTC element.

Unlike traditional fuses, the AGRF400-2 can be reset by cooling down the component. This resetting action allows the device to continue providing circuit protection. The AGRF400-2 also features a built-in current monitor which constantly monitors the operating current. If the current reaches a critical level, an internal switch triggers, preventing further current from passing through the component and shutting off power. This helps prevent any further damage or failure of the circuit.

Conclusion

The AGRF400-2 is a versatile PTC resettable fuse designed for use in a wide range of power supply and industrial device applications. It utilizes PTC technology to detect an over-current condition and prevents further current from passing through, thus protecting the circuit. The device is also able to be reset and features a built-in current monitor which helps to protect the circuit even further. All in all, the AGRF400-2 is a reliable and reliable resettable fuse.

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