004303521

Series:	*
Part Status:	Active
Lead Free Status / RoHS Status:	--
Moisture Sensitivity Level (MSL):	--

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Electrical Specialty Fuses and 004303521 Application Field and Working PrincipleElectrical specialty fuses include a diversity of electric circuit protection devices. The 004303521 series of fuse is just one of many specialty fuses that have been designed specifically to provide electrical protection for applications such as a variety of electric motors, generators, and associated equipment where melting, interference, and operational overheating are concerns. The 004303521 series fuse is designed with a compact DC-DC current transformer. This transformer’s primary winding acts directly on the projected secondary winding, which is enclosed in the fuse’s characteristics conductor. As the primary winding passes electrical current through the secondary winding the magnetic field within the fuse increases in intensity.Within the 004303521 series fuse, depending on the load, the magnetic field charges the core and fields rapidly, allowing for the current to be limited at or above a pre-determined level. As this occurs, the magnetic field is resisted, resulting in the creation of counter electrical fields. Once the overload has been reduced, the current continues as normal and the fuse maintains its characteristics and operation. In order to tightly control the current and prevent it from exceeding the pre-determined levels, the 004303521 series fuses have been fitted with high capacity magnets as part of their circuit protection design. These, along with a heat sink, contribute to more efficient cooling and protection of the fuse and the electrical components that are connected to it. The 004303521 series fuse can be used in a diversity of applications including: electric motors, automotive and transportation equipment, actuators, transformers, and power conditioning. The fuse works to ensure the increased circuit reliability, and operational safety during use. These fuses can even be used where high currents require two or more fuses to be linked together. The 004303521 series fuses are designed to be robust in their technical characteristics and provide a high level of protection during overloads and short circuits. The 004303521 series fuse is largely the same as other specialty fuses, just with a more focused purpose of protecting motors, machines, and all related appliances. This type of fuse is generally installed in a wide range of wiring systems and is easily replaceable when burned out. It can be easily used in combination with a variety of control components such as contactors and contact switches. Its design allows for the incorporation of additional protection from other devices such as voltage protecion systems, isolators, and higher current rating componentsThe working principle of the 004303521 series of fuse is relatively simple. The primary winding of the fuse’s enclosed current transformer is in direct contact with the projected secondary winding, allowing for a magnetic charge to be applied. This charge serves to increase the magnetic fields intensity with the increase of current through the secondary winding, limiting the current at predetermined levels before short circuits or overloads occur. The heat sink and accompanying magnets contribute to the fuse’s efficiency ensuring that errant electrical current is appropriately and accurately dissipated. Overall, the 004303521 series of fuse is designed to offer rapid response times and has a wide range of available current ratings, from 16A to 800A, making it suitable for a variety of applications. With it’s robust and reliable design the 004303521 series provides a high level of protection for industries where electric motors, machines, and associated equipment must be accurately and efficiently protected from short circuits and overloads.

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