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Everything To Know About Electrical Fuse

In electronics and electrical engineering, a fuse is an electrical safety device that operates to provide overcurrent protection of an electrical circuit. Its essential component is a metal wire or strip that melts when too much current flows through it, thereby stopping or interrupting the current. View this presentation to understand Electrical Fuse in detail!

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Everything To Know About Electrical Fuse

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  1. Everything To Know About Electrical Fuse Created by Zirco VIT Industries

  2. What is a Fuse? • A fuse is an electrical safety device built around a conductive strip that is designed to melt and separate in the event of excessive current. Fuses are always connected in series with the component(s) to be protected from overcurrent, so that when the fuse blows (opens) it will open the entire circuit and stop current through the component(s). A fuse connected in one branch of a parallel circuit, of course, would not affect current through any of the other branches.

  3. Advantages of an Electrical Fuse • It is the cheapest form of protection, and it does need any maintenance. • Its operation is completely automatic and requires less time as compared to circuit breakers. • The smaller sizes of fuse element impose a current limiting effect under short-circuit conditions. • Its inverse time-current characteristic enables its use for overload protection.

  4. How does a fuse work? • The primary job of a fuse is to break the circuit if a current higher than desired is drawn by the circuit, thus preventing damage due to short circuits. • The simplest kind of fuse consists of a resistive element, selected carefully for its melting point. • When a current passes through this element, a small voltage drop (small enough so the circuit downstream won’t be affected) is created across the element, and some power is dissipated as heat. • The resistive element melts and the circuit is interrupted. The thickness and length of the resistive element determine the rated current. • Fuse elements are made of zinc, copper, silver, aluminium or other alloys to provide predictable trip currents. The element must not oxidize or corrode over time.

  5. Electrical Fuse Applications Fuses are used in many industrial electronic and electrical applications, including: • Hard Disk Drives • Laptops • LCD Monitors • Automotive Systems • Battery Packs • Gaming Systems & Portable Electronics • General Appliances and Devices • Cell Phones • Printers/ Scanners

  6. What Are The Types Of Electrical Fuses? • Most fuses can be split into two main categories - AC & DC fuses. Besides their size differences, AC fuses (alternating current) allows for the reverse flow of currents, and are relatively simple by design. A DC fuse (direct current) are little more complex in design, and are made for currents to pass in a single direction. DC fuses do not allow for reverse flow. • Fuses can also differ in design by their purpose. They can either be one time use or resettable. There are also other characteristics to consider before choosing a specific fuse. They consist of: • Breaking Capacity • Rated Voltage • I2t Value • Speed/ Response • Current Capacity / Rated IN Current

  7. Contact Us • Zirco VIT Industries • Address: No. 1824, 26, GIDC, Wadhwan, Surendranagar, Gujarat 363035 • Contact Number: +91 97250 47895 • Website: https://www.zircovitind.com/ • Email: nilang@zircovitind.com

  8. Content Source: • https://circuitglobe.com/electrical-fuse.html • https://www.allaboutcircuits.com/textbook/direct-current/chpt-12/fuses/ • https://components101.com/articles/different-types-of-fuses-and-their-applications • http://www.fusecoinc.com/fuses/fuse_types • https://www.zircovitind.com/product/electric-fuses/

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