RUEF400K-2 Circuit Protection

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PTC resettable fuses are a type of current limiting device that offers superior circuit protection from fault currents, yet is able to automatically reset itself after a fault has been cleared. One of the most commonly used devices in this category is the RUEF400K-2. This device, which is made of a polymer material, is designed to provide overcurrent protection to both AC and DC circuits. The RUEF400K-2 has a rated current of 400A, and it has a characteristic response time of 25ms, making it ideal for applications where overcurrent protection is necessary.

The working principle of the RUEF400K-2 is simple. When an overcurrent is detected in the circuit, it triggers an internal heating element, which limits the current flow in the circuit and prevents damage from occurring. This heating element also acts as a reset mechanism, which allows the circuit to automatically reset itself after the fault is cleared. Because of its resettable nature, the RUEF400K-2 is an essential component in any circuit protection application.

The RUEF400K-2 can be used in a wide variety of applications, such as medical equipment, where overcurrent protection is needed due to the presence of potentially hazardous materials. It is also commonly used in industrial applications, such as UPS systems, electric vehicles, HVAC systems, and other types of equipment where overcurrent protection is necessary. Additionally, the RUEF400K-2 is used in many consumer electronics, such as mobile phones, power supplies, and more.

In addition to providing superior overcurrent protection, the RUEF400K-2 has several other advantages as well. For example, the device is lightweight and compact, making it easy to install in tight spaces. The device also has a low thermal impedance, which reduces the amount of heat generated in the circuit when it is used. Finally, the RUEF400K-2 is relatively inexpensive, making it a cost-effective option for many applications.

To summarize, the RUEF400K-2 is a PTC resettable fuse that offers superior circuit protection from fault currents. It has a rated current of 400A and a characteristic response time of 25ms, making it ideal for applications where overcurrent protection is necessary. The device is also lightweight and compact, has a low thermal impedance, and is relatively inexpensive, making it a cost-effective solution for many applications. The RUEF400K-2 is suitable for use in many different applications, including medical equipment, industrial systems, consumer electronics, and more.

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