RGEF400K-AP

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PTC (Positive Temperature Coefficient) resettable fuses, or so-called polyfuses or polymer fuses, used in a wide variety of applications, provide a wide level of basic protection for a variety of DC-powered circuits, since they are capable of interrupting fault currents. The RGEF400K-AP is a polyfuse specifically designed for automotive applications that features a large rugged case with a blow-out indicator. This device has a holding current of 7A and an interrupt current of 13A.The device also features a reset trigger voltage of 1.19V and a trip time of less than 4ms at 13A, giving it an excellent response to over-current events in automotive applications. The device is capable of handling a maximum voltage of 15V and a temperature range of -40°C to +125°C.The working principle of PTC resettable fuses is that when there is a fault current, the fuse will “trip” and open the circuit, preventing further damage. Once the fault current is eliminated, the fuse will automatically reset and the circuit will be re-energized.The reset design of the RGEF400K-AP is specifically designed to handle fault currents of up to 13A. When the fault current exceeds this level, the device will trip and open the circuit, interrupting the flow of current. The device can then reset itself when the fault current drops below the holding current of 7A, allowing the circuit to be closed again.Another important aspect of the RGEF400K-AP is its ability to remain stable and safe even at higher temperatures. This allows the device to be used in the harsh environments typically encountered in automotive applications, such as engine compartments, without fear of thermal runaway.Finally, the RGEF400K-AP provides an easy to read LED indicator that will flash when the fuse is tripped and turn off again when the circuit is closed. This feature of the RGEF400K-AP makes it easy for technicians to quickly diagnose the cause of an over-current event and take the necessary steps to address it.Overall, the RGEF400K-AP is an ideal device for automotive applications due to its rugged build, outstanding current handling capabilities, and self-resetting feature. The device is capable of handling temperatures ranging from -40°C to +125°C, while also delivering an excellent current handling capacity and rapid response to over-current events. In addition, the device also features an easy to read LED indicator, giving technicians a quick way to determine the source of a fault. Therefore, the RGEF400K-AP is the ideal device for providing reliable and safe basic protection for a variety of automotive applications.

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