3403.0131.24

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Fuses

Fuses are an important safety device used in a wide range of manufactured products. They are designed to act as a protective circuit breaker in the event of a power surge or other electrical anomaly. Fuses are rated for current, voltage, and time-delay elements so that they can be matched to the application for which they are used. In this article, we will explore the application field and working principle of a particular fuse type, model number 3403.0131.24.

Application Field

The 3403.0131.24 fuses are primarily designed for use in the industrial sector. They are an ideal choice for applications that require over-current or time-delay protection, such as heavy equipment, motor starters, startup circuits, and various other industrial loads. The fuses are designed to protect motors and other drives which are prone to short-term over-currents. They can also be used to protect sensitive electronic components by preventing voltage fluctuations.

Working Principle

Fuses operate on the principle of melting an internal conductor when an over-current is detected. The 3403.0131.24 fuse is made up of two main components; a metal strip conductor and a heat-sensitive ceramic terminal. The metal strip conductor is made from a nickel-plated copper alloy, which has a melting point lower than that of the ceramic terminal. The heat-sensitive ceramic terminal contains a bi-metallic strip that expands when heated and triggers a mechanical device to open the circuit. When an over-current condition occurs, the metal strip conductor melts and interrupts the circuit before the ceramic terminal can expand and open the circuit. This effectively prevents the circuit from sustaining further damage.

Fuse Ratings

The 3403.0131.24 fuse has a current rating of 10A and is rated for voltages of up to 250 VAC. It is UL and CSA approved for its over-current protection capabilities and time-delay characteristics. The fuse has a time-delay rating of 1000 seconds at 500 percent of its rated current. This indicates that the fuse will be able to withstand a 500 percent overload of its rated current, with the time of protection being 1000 seconds. The fuse is available in several configurations, including plug-in, solder-in, and PC board mount styles.

Fuse Replacement

In the event of a fuse failure, it is important to replace the fuse with the exact same type and rating. The wrong type of replacement fuse could result in an overheated fuse or a blown circuit breaker. The fuse should be inspected regularly to ensure that it has not been tampered with or become faulty in any way. It is also important to ensure that the fuse is properly rated for the circuit it is protecting. If the fuse is replaced with one that is too low in rating, it may not provide the necessary protection in the event of an overload.

Conclusion

The 3403.0131.24 fuse is an important component used in the industrial sector, providing over-current and time-delay protection. The fuse has a current rating of 10A and is rated for voltages of up to 250 VAC. It is UL and CSA approved for its time-delay characteristics. It is important to ensure that the fuse is replaced with the exact same type and rating, and that it is appropriate for the circuit it is protecting.

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