S505-800-R

Fuses have been used in electrical and electronic systems since their invention more than 100 years ago. Although the technology has evolved, the basics of fuse operation and application remain the same. The application field and working principle of one type of fuse, S505-800-R, is discussed in this article.

First, let’s look at the application field of S505-800-R. This type of fuse is designed for applications up to 690V AC with a breaking capacity of 2kA, making it suitable for high voltage motor protection and circuit switching operations. It is also used in applications where low voltage protection is needed since it provides high breaking capacity and low thermodynamic stress. It can also be used in DC applications up to 380V.

Second, we explore the working principle of S505-800-R. This type of fuse is composed of three main parts: the fuse element, the connection and the enclosure. The fuse element is the most important part of the fuse and consists of metal or alloy wires wrapped in a special profile. The connection is composed of a special connector, usually a screw or cable terminal, that connects the fuse element to the conductors. Finally, the enclosure is usually made of plastic and is designed to protect the fuse element from physical damage and to ensure safety. When a current passes through the fuse, the heat generated will heat up the fuse element. When the heat reaches a certain level, the fuse element will melt and disconnect the flow of current, thereby protecting the circuit from overloads.

To conclude, the application field and working principle of S505-800-R fuse have been discussed in this article. This type of fuse is suitable for high and low voltage applications with a high breaking capacity and low thermodynamic stress. The fuse element, connection and enclosure are the main parts of the fuse and work together to protect the circuit from overloads. With this knowledge, users can choose the right type of fuse for their specific needs.