0679L0630-05

Fuses are a type of electrical protection device that is designed to limit an electrical circuit by interrupting the current flow in the event of an overcurrent, such as an electrical surge or short circuit. The 0679L0630-05 fuse is a type of UL Recognized Class L fuse, which is designed to protect electrical circuits in general-duty applications, such as branch circuits, motor circuits, signs and signal systems, and other Class L applications.

Structure and Characteristics of 0679L0630-05 Fuse

The 0679L0630-05 is a dual element fuse with the dimensions of 63×6.05mm and a body composed of glass and nickel-plated brass. It has a cylindrical white ceramic body construction and the electrodes are made from copper. The operating voltage rating is 690V AC/DC and a breaking capacity of 600A for both 200A and 400A. The internal structure of the fuse consists of two elements: a basic element with a thermosetting material and a thermoplastic material. This combination provides the fuse with superior current and temperature characteristics.

Application Field of 0679L0630-05 Fuse

The 0679L0630-05 fuse is designed to provide reliable protection against short-circuits, overcurrents, and overloads and is mainly used in low-voltage applications for the protection of branch circuits, motor circuits, signs and signal systems, transformers, and other Class L applications. It can also be used in some lighter-duty applications such as protective devices for motors, transformers, capacitors, and other electrical components.

Working Principle of 0679L0630-05 Fuse

The working principle of the 0679L0630-05 fuse is based on the fuse elements\' response to an increase in current flow. The basic element of the fuse is composed of a thermosetting material and a thermoplastic material. When the current flows through the fuse, the heat generated by the current raises the temperature of the thermosetting material. This causes the thermoplastic material to become soft and the two materials become more conductive, increasing the current through the fuse. This increase in current heats the basic element further and the temperature rises until it reaches a specified level. When this temperature is reached, the thermosetting material melts and the fuse is opened, interrupting the current and protecting the circuit. The 0679L0630-05 fuse is designed to safely handle up to 620A of current before it blows.

Conclusion

The 0679L0630-05 fuse is a UL Recognized Class L fuse that offers reliable protection for general-duty applications. It is designed with a cylindrical white ceramic body construction, consisting of two elements that provide superior current and temperature characteristics. It is mainly used in low-voltage applications and can safely handle up to 620A of current before it blows. The 0679L0630-05 fuse is a reliable and cost-effective way to protect electrical components from the hazards of overcurrents, short-circuits, and overloads.