RUEF400

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PTC Resettable Fuses are electronic components that are capable of stopping current flow to high-voltage power systems in the event of an overload. The RUEF400 Application Field and Working Principle are among the most popular of these types of fuses.The RUEF400 is a type of Polymeric Positive Temperature Coefficient (PPTC) resettable fuse, which is a device that utilizes a positive temperature coefficient element to protect circuits and terminal blocks from over current overloads. It is a small, compact, and cost-effective solution that provides reliable over-current protection for applications ranging from home appliances to industrial equipment.The RUEF400 is designed to provide reliable over-current protection for terminal blocks, terminal strips, or any other type of device that needs to be safely and quickly disconnected from the main current source in the event of an overload. In normal operation, it limits the current flow to the desired level. However, in the event of an overload or short circuit, the PTC element heats up and triggers the disconnection of the power supply, thus providing protection for the equipment and personnel connected to it.The RUEF400 is designed to be mounted directly onto the terminal blocks or terminal strips, eliminating the need for additional wiring or other specialized installation procedures. The fuse is also rated for up to 400V AC or DC, making it suitable for a variety of applications. The device is designed to handle over-currents of up to 600A, and it is able to reset itself after the over-current is eliminated, allowing it to be reused multiple times.The working principles of the RUEF400 are based on the PPTC technology, which utilizes specially designed polymeric materials to provide protection from current overloads. A thin film of these materials is heated up by an over-current, causing a positive temperature coefficient effect that triggers the disconnection of the power supply. This effect is also known as thermally activated positive temperature coefficient (TPTC) triggering. Once the over-current has been eliminated, the RUEF400 will reset itself and become active again, allowing it to be reused multiple times without having to be replaced. This feature increases its cost-effectiveness and makes it an excellent solution for applications requiring reliable protection from over-currents. In summary, the RUEF400 Application Field and Working Principle are among the most popular PTC Resettable Fuses, due to their reliable performance, small size, and cost-effectiveness. The device is designed to provide over-current protection for applications ranging from home appliances to industrial equipment, and is capable of resetting itself once the over-current has been eliminated. Overall, the RUEF400 is an ideal solution for applications that require reliable and cost-effective protection from over-currents.

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