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Fuses: 0665.080ZRLL Application Field and Working Principle

Fuses are electrical safety devices that are used to protect electrical circuits, equipment, and components from damage due to overcurrent or overheating. They often contain a mechanism to break a low-resistance path when an excessive current flows through it, thereby cutting off the supply and protecting against short-circuits.

The 0665.080ZRLL fuse is a one-time-use branch circuit rated fuse designed for use in consumer appliances, light switches, and similar controlled products. It has an interrupt rating of 20,000,000 amperes at 500 volts. The 0665.080ZRLL fuse is available in two types: a "quick-blow" and a "time-delay" style. The "quick-blow" type is designed to immediately shut off the power within seconds of an overcurrent or short-circuit event, while the "time-delay" type is designed to allow a momentary surge of current for up to 10 seconds, depending on the load, before shutting off. This is a useful feature when dealing with sensitive equipment, as it allows the user time to switch off the power before the fuse trips.

The 0665.080ZRLL is made up of two components: a ceramic body and a metalized wire element. The metalized element is a thin strip of metal, such as copper, nickel, or aluminum, which is wrapped around a ceramic center. The ceramic center is then sealed inside the outer ceramic body.

The 0665.080ZRLL operates on the principle of thermoelectricity, which states that when the current through a material exceeds its rated limit, the material\'s temperature increases. When the temperature reaches a certain level, the thermal strain causes the metalized strip to rupture, thus cutting off the current.

The 0665.080ZRLL is UL listed for use in consumer appliances, light switches, and other similar products, and is designed to protect against excessive currents or overheating. They are commonly used in high wattage and high-power appliances, due to their high interrupt ratings.

Fuses are an important safety feature and must be chosen and installed carefully so as to ensure maximum protection for a given circuit. If you are in need of fuses for your applications, the 0665.080ZRLL is an excellent choice as it is UL listed and offers both quick-blow and time-delay protection. As with any electrical device, installation should only be performed by a qualified electrician.

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