0251004.NRT1L

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Fuses

0251004.NRT1L is an electrical safety device used to protect the circuits from overload and short circuits. When current reaches the limiting of the fuse, it will blow, preventing the further flow of current. The fuse can be an inexpensive and effective protection device compared to other methods such as circuit breakers.

Application Field

0251004.NRT1L-type fuse can be applied in various fields of electricity, such as electrical transmission and distribution, household appliances, telecommunication, automotive, industrial electric products, etc. It is especially suitable for the protection of circuits of electronic products, especially those with surface mount technology, such as computers, consumer electronics, audio products, household appliances, and more.

Working Principle

When the current goes through the fuse element, the electricity heats up the filament, then reducing its cross-sectional area. When the current reaches a certain excessive value, the filament will blow, interrupting the circuit. As a slow-blow fuse, it has a special feature that it can tolerate a short-term overload, and it is more effective for the long-term overcurrent protection.

The overload protection of 0251004.NRT1L can be divided into two categories. The first one is the thermal protection which depends on the temperature and current heat of the filament. The second one is the current-limiting protection which relies on the impedance of the fuse element.

The thermal protection uses the heat generated by the current that goes through a heating element. When the current reaches the pre-set value, the temperature of the element will rise to blow the filament. This will protect the circuit as long as the low impedance of the fuse element enables it for short-time overcurrent protection.

The current-limiting protection uses the impedance of the fuse element to limit the current. When the current reaches the limitation, the impedance of the element will increase rapidly, leading to the blow of the filament. This will provide long-term protection against overloads.

In short, 0251004.NRT1L is an ideal fuse type with both thermal protection and current-limiting protection, providing efficient protection for various electronics and electrical products.

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