FWP-20B Datasheet/PDFElectrical specialty fuses are the protective devices that are employed for protecting electrical and electronic equipment from the dangerous effects of overloading, short-circuiting and ground faults. The FWP-20B fuse is a common type of electrical specialty fuse and is used for merely such purposes. It is ideal for protection of a wide range of applications. In this article, we will discuss the types of applications and the working principle of the FWP-20B fuse.
The FWP-20B fuse is a Type C rewireable fuse, which is designed to offer protection against overloading and short-circuiting of electric circuits. It is usually made from a plate, which acts as a medium to hold the fuse elements together. This plate also serves the purpose of transferring heat away from hot components and also preventing it from reaching other electrical equipment in the vicinity. This plate can be made of a variety of materials such as steel or aluminum.
The FWP-20B fuse recommends an operating range of 5A to 20A with a nominal voltage of 230V AC. It is made up of a thermal element to protect against overloads and an electrical element to protect against short circuits. This fuse is typically mounted in a switchboard or on the supply lines. The FWP-20B fuse has a breaking capacity of 3000A and its size is 6.35mm by 31.75mm.
The application field of the FWP-20B fuse includes protecting overhead and underground electrical circuits, main and sub-main distribution boards and associated switching, over-current protection for single or multiple circuits, arc-welding process, industrial processes and other motor leads or other suitable applications.
The working principle of the FWP-20B fuse is quite simple. It consists of two elements: a thermal element and an electrical element that protect against overloading and short-circuiting of the circuit respectively. The thermal element, as mentioned earlier, is made up of a plate, which serves to transfer heat away from the hot components. In the case of an overload in the circuit, the current will flow beyond the rated capacity of the fuse and this will cause the plate to heat up and eventually melt. Once the plate melts, it will break the circuit and stop the flow of current, thus protecting the device from further damage.
The electrical element of the FWP-20B fuse works in a similar way. The electrical element consists of a strip of special metal alloy, which is designed to melt at a predetermined temperature. In the case of an electrical short circuit, the current will flow beyond the rated capacity of the fuse and this will cause the strip to heat up and eventually melt. Once the strip melts, it will break the circuit and stop the flow of current, thus protecting the device from further damage.
In conclusion, the FWP-20B fuse is a type of electrical specialty fuse that is designed to provide protection against overloading and short-circuiting of electric circuits. It is typically used for protecting overhead and underground electrical circuits, main and sub-main distribution boards and associated switching, over-current protection for single or multiple circuits, arc-welding process, industrial processes and other motor leads or other suitable applications. The fuse has a breaking capacity of 3000A and its working principle is based on two elements: a thermal element that protects against overloads and an electrical element that protects against short circuits.