FNQ-R-3-1/2

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FNQ-R-3-1/2 series electrical fuses are specialized electrical products for protection and safety of circuits, electrical appliances and electrical circuits. They are widely used in many industrial, residential and commercial applications. Utilizing the principles of thermal dynamics, FNQ-R-3-1/2 fuses can quickly detect and shut down an overloaded electrical circuit before electrical fires break out.

FNQ-R-3-1/2 series electrical fuses are available in different ratings and current levels depending on the specific application needs and requirements. They are composed of a metal tube filled with a low melting alloy material. The fuse is connected to the two protected ends of an electrical circuit. When the electrical current reaches its rated current limit, the heat generated by the over-current overloads the metal tube. This heats up the low melting fuse material and it melts quickly when the temperature is high enough. This immediately interrupts the electrical load and cuts off the electric current.

FNQ-R-3-1/2 series electrical fuses have different rated current values ranging from 3A to 15A. The current should be selected according to the rated current of the circuit or electric appliance to be protected. Higher values of the rated current are suitable for heavier loads like motors, while smaller values are suitable for protecting lights or other electronic appliances. For more safety, it is recommended to use the highest rated current value that can safely protect the application.

The FNQ-R-3-1/2 series of electrical fuses have several advantages over other types of fuse. It will react quickly and uniformly to any overcurrent situation, leaving the protected circuit unaffected. It works with no significant voltage drop in the circuit and its spring action ensures electrical contact from end to end. This adds reliability and safety to the circuit.

After installation, an indication is available in the form of a red dot above the fuse body. This indicates that the fuse has blown out or that the maximum current rating of the fuse has been exceeded. Replacing the fuse should be done with caution because the fuse should match the current rating of the circuit.

In conclusion, FNQ-R-3-1/2 electrical fuses provide multiple advantages for both industrial, residential and commercial applications. They provide fast and uniform protection under over-current situations, with no significant voltage drop in the protected circuits. It is important to choose the right fuse with the correct rated value in order to ensure safe and reliable operation.

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