FNQ-4/10

FNQ-4/10 Application Field and Working Principle

FNQ-4/10 is a type of current-limiting fuse with dual element. This type of fuse is commonly used in electrical appliances, portable tools, lighting systems, motor circuits, and machine tools where over-current protection is required. This article provides an overview of the application field and working principle of the FNQ-4/10 fuse.

Application Field

The FNQ-4/10 is commonly used in association with electrical and electronic equipment which draw a large amount of electrical current. Such equipment includes microwave ovens, air conditioners, refrigerators, washers and dryers, pumps, electric tools, medical equipment, computers and servers, televisions, computers, and other electronic devices. The FNQ-4/10 fuse can also be used for household wiring systems, motor control circuits, machine tools, electric motors, and circuit breakers. The FNQ-4/10 can also be used in combination with circuit breakers to provide a complete protection against over-currents.

Working Principle

The FNQ-4/10 fuse is a type of current-limiting fuse with dual element. It consists of two elements – a thermal-sensitive element and an electrical-sensitive element. The thermal-sensitive element is made of a special metal alloy which melts and releases an electric arc when the temperature exceeds the melting point. This triggers the electrical-sensitive element which then trips the fuse. The fuse breaks the electrical connection and limits the current that can pass through. In other words, the FNQ-4/10 acts as a circuit breaker in the event of an over-current.

The FNQ-4/10 fuse is designed to open a circuit if the current exceeds the rated value. The fusing current specified for the FNQ-4/10 is 4A for 10 seconds. This means that the fuse can withstand a current of 4A for 10 seconds before it trips and opens the circuit. The fuse is designed to provide over-current protection in case of electrical faults or overloads.

The FNQ-4/10 can also be re-used after being tripped. Fuse elements can be reset simply by removing the failed element and replacing it with a new one. The FNQ-4/10 can also be used with a circuit breaker as a back-up protection against over-currents in case the fuse trips.

Conclusion

The FNQ-4/10 is a type of current-limiting fuse with dual element. It is designed to provide over-current protection in electrical and electronic systems. It is commonly used in association with microwave ovens, air conditioners, refrigerators, washers and dryers, pumps, electric tools, medical equipment, computers and servers, televisions, computers, and other electronic devices. The fuse can withstand a current of 4A for 10 seconds before it trips and opens the circuit. It can also be re-used after being tripped and can be used in combination with circuit breakers to provide a complete protection against over-currents.