FL3K80

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FL3K80 is an electrical specialty fuse which has become very popular in the industrial environment due to its robust construction and reliable performance. It has been designed to provide reliable and continuous fault protection for the application from low voltage to high voltage.

The fuse is designed to provide protection against arcs and short circuits, and has a wide operating temperature range of -15°C to +85°C. It is available in two versions, one for enclosed spaces and the other for open spaces.

The fuse is a “transient power circuit breaker” and is commonly used in the automotive and aerospace industries. It is designed to trip quickly and close quickly to clear short circuit faults as well as regular load power surges in motors and other electrical equipment. This makes the fuse ideal for applications which require frequent on/off switching, including high-speed motors, switching circuits and inverters.

The working principle of the FL3K80 is based on the use of a “hot-wire” element which melts when the current running through it exceeds its melting point. When this occurs, the wire breaks and the arc is extinguished. This action initiates a breaking process which causes the contacts of the fuses to move, disrupting the circuit and interrupting the power supply.

The FL3K80 is constructed with two main elements – the coil element and the contact element. The coil element has an outer layer of nickel-coated copper molybdenum which is heated by the current running through the fuse. When the heat generated exceeds the melting point of the element, the wire breaks and the arc is quenched.

The contact element is made from a high-strength nickel alloy and is designed to open and close the contacts of the fuse rapidly. When the voltage increases, the contact element moves quickly and interrupts the current which passes through the fuse.

The FL3K80 is also designed with an optional “last tail” feature which prevents dangerous reconnection of the circuit after the fuse has tripped. This feature helps to ensure that the fuse maintains its protection even after the interruption.

The FL3K80 provides a reliable and robust protection for circuits from low to high voltage, with a wide operating temperature range. Its fast acting and closing features make it ideal for a variety of industrial applications, including high speed motors, switching circuits and inverters. Its “last tail” feature also helps to ensure that the fuse maintains its protection level even after the interruption is cleared.

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