RXE375

PTC Resettable Fuses are a type of self-resetting fuses used in applications where loads are too high, such as in automotive applications and industrial equipment, to reduce causes of short circuits, overcurrents and overvoltages. PTC fuses are designed to replace traditional fuses as they can be reset after the overcurrent condition has been removed. One of the most common types of PTC fuses is the RXE375, which is a solid-state, low-resistance device used to protect against short circuits and other hazardous conditions. This article will discuss the application field and working principle of the RXE375.

The RXE375 is a thermal-desensitizing resettable fuse with a built-in temperature control that eliminates nuisance tripping on low-level current or when exposed to high temperatures. It features an integrated open-circuit voltage of 375 Volts and the ability to draw 0.7A at 120°C. The RXE375 combines overcurrent and thermal protection to provide superior overcurrent protection. It is UL listed, and is designed to be used in a variety of applications, such as automotive, marine, and industrial. It has an IP67 rating for water-resistance and is suitable for use in harsh environments.

The RXE375 works on the principle of thermal protection. It consists of two parts: the body and the thermal switch. The body is a sheath which houses the thermal switch. The thermal switch consists of a bimetal element that is connected to a temperature sensing circuit. The current flowing through the RXE375 causes the bimetal element to heat up, which in turn triggers the thermal switch. The thermal switch will then open the circuit, thereby preventing any further current flow and protecting the device against damage. When the current is removed, the bimetal element will cool down and the thermal switch will reset, allowing the current to flow again.

The RXE375 is also designed to be self-monitoring, enabling it to detect any faults that may occur. For example, if a short-circuit or overvoltage occurs, the RXE375 will detect it and trip the circuit accordingly. This helps ensure that the device is protected from the risks associated with overcurrents and over-voltages.

The RXE375 is an excellent solution for overcurrent protection in automotive, marine, and industrial applications. It is able to provide a high level of protection against short circuits and other hazardous conditions, while also being able to be reset after the overcurrent condition has been removed. Moreover, its self-monitoring capabilities ensure that it is able to detect any faults in order to protect the device from further damage. As such, the RXE375 is an ideal choice for those looking for reliable overcurrent protection.