RLD30P400UF

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PTC Resettable Fuses have become increasingly popular in a wide range of applications due to its ability to be reset after a short circuit or overload has occurred. The RLD30P400UF is an especially popular fuse for its simple yet effective design and use.

This type of fuse is a 30 Amp, 400VAC resettable fuse, with a typical operating temperature range of -3 to +85°C and a 4-second time delay. It offers superior protection for sensitive electronics such as audio and video equipment, telecommunication networks and home appliances, as well as commercial equipment and industrial machinery.

The working principle behind the RLD30P400UF is that when it is subject to an overload or short circuit current, the fuse will rapidly open the circuit and then the current will be limited to a safe level. This will cause the fuse to heat up and the temperature of the fuse will begin to rise until it reaches the Reset Trip Point. After this, the fuse will reset itself and will begin to cool off and be ready to operate again.

The Reset Trip Point is the temperature that the fuse will reach once the current has been limited and the fuse has cooled off. This temperature is very important for the proper operation of the fuse and is usually kept very close to the Reset Trip Point in order to ensure that the fuse resets quickly. If the Reset Trip Point is set too high, the fuse may not reset itself and may cause the device connected to it to be damaged or become inoperable.

The RLD30P400UF also features a very low internal resistance, which is crucial in ensuring that the current is kept at a safe level throughout the entire fault or overload event. This low resistance also helps to keep the current limited and helps to reduce the amount of heat generated by the fuse.

The RLD30P400UF can be used in a wide variety of applications due to its versatility and reliability. As mentioned above, it is particularly suitable for use with sensitive electronics such as audio and video equipment, telecommunication networks, and home appliances as well as commercial equipment and industrial machinery. Additionally, this type of fuse can also be used in automotive applications such as in cars and trucks, where it is designed to provide protection in case of an electrical malfunction or short circuit.

Overall, the RLD30P400UF is an excellent choice when it comes to providing reliable and safe protection for a wide range of applications. With its low internal resistance, simple reset feature, and its wide operating temperature range, it is an ideal choice for a variety of electronic and automotive applications.

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