FNQ-8

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The FNQ-8 is a type of specialty fuse that is used in electrical equipment and machinery. Its purpose is to protect the circuits or components from overcurrents or short circuits. It is designed to open the circuit when an overload is detected and remain open for a specific amount of time so that the protected circuit can reset itself. The FNQ-8 is also referred to as a "time-delay" fuse due to this feature.

The FNQ-8 is a type of current-limiting fuse, which means that it is designed to allow the current to pass through it at a certain rate without overloading the circuit. The maximum current level that the fuse can handle without breaking the circuit is called the interrupting rating. The FNQ-8 has an interrupting rating of 10,000 amps.

The FNQ-8 fuse is a Class CC fuse, which means that it is designed to be used in circuits with short-time overloads. This type of fuse is often used in motors or other high-current applications that may need to handle short-term overloads without tripping the circuit. It is also commonly used in circuit breaker panels as a main circuit breaker.

The design of the FNQ-8 is relatively simple. It consists of a ferrule which is the body of the fuse, and the ends are open. Inside the ferrule is a cylinder that contains a metal alloy that melts when the current in the circuit exceeds a certain level. When the metal alloy melts, it creates an open circuit that prevents further current from passing through.

The FNQ-8 has a time-delay feature that allows it to remain open for a certain amount of time before resetting itself. This feature is designed to prevent the fuse from opening too quickly and creating a short circuit. The time-delay feature is adjustable and can be set to a time delay of either 0.5 or 1 second.

The FNQ-8 is an economical fuse that is designed to provide reliable circuit protection. It is well-suited for use in machine tools, motor controllers, industrial equipment, and many other applications that require circuit protection. It is also UL listed and CSA approved for safety.

In conclusion, the FNQ-8 is a reliable and cost-effective current-limiting fuse that is designed to provide protection against short-term overloads. It is a Class CC fuse with an interrupting rating of 10,000 amps and a time-delay setting of either 0.5 or 1 second. The FNQ-8 is UL listed and CSA approved and is often used in circuit breaker panels as a main circuit breaker.

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