72R020XU

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PTC Resettable Fuses are electronic components with strong protection and self-resetting functions. They are generally installed in electronic devices to protect the components from damage. The 72R020XU is a highly reliable and cost-effective PTC Resettable Fuse produced by AiXing. This product provides a wide range of application fields and working principles for electronic device protection.

Application Fields

The 72R020XU PTC Resettable Fuse is primarily designed for current protection and overvoltage protection in industrial and commercial control circuits, such as home API systems, industrial automation, machine control, reticulation control, railway locomotive, and automotive system applications. It is convenient for engineers to use the 72R020XU to protect the electrical components from damage due to overcurrent and short-circuit.

Working Principle

The 72R020XU PTC Resettable Fuse works by interrupting current when it exceeds the designed time-current threshold. The main objective of 72R020XU is to protect against the overcurrent condition and to maintain a safe operating environment for other electronic components. It has an integrated bimetallic element with a temperature sensitive PTC-thermal fuse, which is designed to sense the overheat and quickly open the circuit to prevent further damage.

The first stage of the 72R020XU PTC Resettable Fuse is a bimetallic element which heats up and expands when an overcurrent is present. This heats up the resistor which quickly trips the switch. The second stage of the operation is the temperature-sensitive field effect PTC (Positive Temperature Coefficient) thermal fuse. This device detects the rise in the temperature of the resistor and trips the switch and ultimately cuts off the power. Once the overcurrent is removed, the bimetallic element cools and returns to its original state and the PTC resets.

The 72R020XU PTC Resettable Fuse can be used with electrical appliances to protect against transient overcurrents or safety overloads. Its integrated design makes it more reliable and maintenance-free. Furthermore, the 72R020XU PTC Resettable Fuse has a wide temperature range and a high current rating. It is also approved to UL and CSA standards, ensuring efficient operation and enhanced safety for a wide range of applications.

Conclusion

The 72R020XU PTC Resettable Fuse is a versatile and cost-effective fuse for protecting electrical devices from overcurrent and short-circuits. It has a wide range of applications in industrial and commercial control circuits and offers a high level of reliability and safety for its users. Its integrated design makes the protection more reliable and easier to maintain, while its temperature range and current rating make it suitable for use in a variety of applications.

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