7040.3120

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Fuses are used for circuit protection against overcurrent created by electrical loads due to short circuits and other overcurrent events. They are designed to open the circuit before it reaches the damaging level of current. A 7040.3120 fuse is a type of fuse used in protection against overcurrents in a circuit. It is one of the most popular types of fuses available in the market and has a number of application fields and working principles.

Application Field

The 7040.3120 fuse can be used in various fields including automotive systems, motor starters, air conditioning systems, residential and commercial fixtures and lighting systems, agricultural and irrigation equipment, pumps and motors, air compressors, airplanes, and other high-power industries. Its use in high-power systems is due to its high breaking capacity of 25A in a UL477 approved industrial environment. The 7040.3120 fuse is also suitable for use in industrial control circuits, transformer banks, and alternators. It is available in both slow-blow and fast-blow configurations, making it suitable for a variety of applications.

Working Principle

A 7040.3120 fuse is a glass-tube type fuse which works on the principle of ‘fusing’ or melting the wire inside the tube when the current flowing through it reaches a certain level. The wire in the fuse is made of a metal alloy that melts at a specific temperature. When the current reaches the melting point, the wire inside the fuse melts and breaks the circuit, thereby interrupting the current flow. This effectively protects the device from further damage by preventing the current from exceeding the specified level.

The 7040.3120 fuse operates on the principle of threshold current. The current level at which the fuse will function is usually set at the high-side rating given in the specification sheet. This ensures that the fuse will open when the current designed to protect against is exceeded. This level is designed to open the circuit in time before the damage is done to the device being protected.

The 7040.3120 fuse also has a defensive mechanism built into it that will protect against any other current levels that may not be specified on the specification sheet. The mechanism works by allowing current to flow even if the level specified in the specification sheet is exceeded.

Conclusion

The 7040.3120 fuse is a popular type of fuse used in circuit protection against overcurrents in a variety of applications. It works on the principle of ‘fusing’ or melting the wire inside the tube when the current flowing through it reaches a certain level. The fuse also has a defensive mechanism built into it that will protect against any other current levels that may not be specified on the specification sheet. The 7040.3120 fuse is a great choice for high-power industries such as automotive systems, air conditioning systems, residential and commercial fixtures, and lighting systems.

The specific data is subject to PDF, and the above content is for reference