RLD30P900UFF

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PTC Resettable Fuses (RLD30P900UFF) are thermal self-resetting fuses primarily designed for over-current protection. The RLD30P900UFF circuit breaker offers superior performance and reliable protection to prevent over-currents from causing catastrophic damage to equipment and endangering people or property, and is used in countless applications and industries. These fuse devices are available in a number of various physical formats offering different current ratings to meet the needs of various application designs.

Overview

RLD30P900UFF is a series of PTC thermal self-resetting fuses designed to provide overcurrent protection for general-purpose circuits. These devices offer highly reliable and cost-effective protection solutions in a variety of formats. The series is designed to detect overcurrents and respond quickly by entering a thermal shutdown state. This protects valuable equipment and prevents fire or other hazards from occurring. The RLD30P900UFF circuit breaker combines the benefits of a fusible link with the convenience of reset after multiple trips. This eliminates the need to manually reset the device after tripping, saving time and maintenance costs.

Application Fields

RLD30P900UFF PTC Resettable Fuses are used in many different applications. The wide range of current ratings offered by this model allows it to be used in a range of applications. Their cost-effectiveness and reliability make them a preferred choice for many applications in the fields of automotive electronics, industrial electronics, audio and lighting equipment, machinery, security systems, consumer electronics, and medical equipment, among others. This series has become increasingly popular with customers from a variety of industries and sectors, including but not limited to, LED lighting, heating, Energy Management Systems, Invertors, and home entertainment systems.

Working Principle

The working principle of the RLD30P900UFF is based on a combination of PTC sensor technology and a traditional fuse circuit. When a predetermined overload current or short circuit occurs, the self-resetting fuse will trip the circuit breaker. This interrupts the flow of current and prevents further damage to valuable components or equipment. The PTC thermistor is designed to heat up when an overload current occurs, and its increased temperature will trigger a rapid impedance rise. This impedance rise causes a rapid current drop resulting in an immediate trip. Following the trip, the PTC thermistor begins to cool down, causing its impedance to slowly drop back to its original low state. Once the thermistor has cooled down, the fuse is reset and will allow the continued flow of current.

The RLD30P900UFF series is available in a variety of sizes and formats to suit the needs of different applications. These include Cylindrical Shell, DIP Type, SM-3, SM-5, SM-6, and SM-C packages as well as various mounting configurations. The specifications for each device are optimized for different applications and may include a wide range of features, such as defined thermal dissipation, an LED display, and alarm contacts.

Conclusion

The RLD30P900UFF series of PTC Resettable Fuses offers a reliable and cost-effective solution for overcurrent protection. This series offers a wide range of current ratings and physical formats to meet the needs of many applications, from automotive to industrial electronics, audiovisual to security systems, and more. With its simple working principle, the RLD30P900UFF is ideal for use in any application that requires protection from overcurrents or short circuits.

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