PTR060V0040-TR

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PTC (positive temperature coefficient) resettable fuses are a type of fuse that can be reset after it trips due to a overload or short circuit. The PTR060V0040-TR is a commonly used PTC resettable fuse which is widely used in various of applications field, such as industrial, automotive, home electronics etc.This PTC resettable fuse is designed to protect electric systems and components against short circuit current and overloads and it is characterized by its high current-carrying capacity.It provides reliable protection to the circuit as it can detect when the excessive current flows through the circuit and its use consequently interrupts the circuit, thus avoiding damage to the device or system.

The most important feature of this PTC resettable fuse is that when the current rises to an excessive level, the PTC resettable fuse trips itself automatically, and when the current reduces to a normal level, the fuse will be reset. This helps to ensure protection of the circuit from the system before it gets damaged by extremely high temperature.

The working principle of this PTR060V0040-TR PTC resettable fuse is quite simple. It has a temperature-sensitive polymer material, inside which is surrounded by a copper disc that forms the contacts of the fuse. When there is an excessive current, the copper disc will heat up and this in turn will heat up the temperature sensitive polymer material.

When the temperature of this polymer material exceeds the pre-set trip temperature, then it will cause an abrupt expansion of the polymer material, thus breaking the internal contact of the PTC resettable fuse. The circuit will be interrupted and the over-current condition is removed.

When the current reduces to a normal level, the copper disc cools down and the polymer material contracts which closes the contact again and the fuse will be reset. This PTC resettable fuse is an effective solution in ensuring protection of the circuit.

In conclusion, the PTR060V0040-TR PTC resettable fuse offers reliable current-limiting protection under normal conditions and over current conditions. This is especially beneficial in protecting electronic devices in a power system. It has a temperature-sensitive polymer material that can detect even a small amount of over-current and trips itself automatically. When the over-current reduces, the fuse will reset itself providing reliable protection to the system.

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