FLSR125.X

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Fuses are important safety devices for circuit protection, and FLSR125.X series can be classified as electrical specialty fuses. They are usually used in applications requiring large current and voltage ratings. This article will mainly focus on the application field and working principle of FLSR125.X series.

Application Field

FLSR125.X series specialty fuses are mainly used in three main aspects of electrical equipment: circuit protection, isolation of short circuits, and surge protection. They are designed for application in industrial tool and machinery, panel boards, motor control, starters and single-phase and three-phase branch circuiting. In addition, FLSR125.X series can be used in paper-in-oil capacitor discharge applications and for various electronic and motor control circuit protection.

Working Principle

FLSR125.X series specialty fuses use the basic melting principle. When the rated current is reached, the fusible element inside the fuse will melt down due to overheating, thus increasing the contact resistance and cutting off the circuit. The melting current of FLSR125.X series varies from 10A to 200A. Once the current across the fuse is too high, it will melt down automatically. Fuses with higher current ratings are usually made of heavy materials and designed with more diverse shapes.

The construction of FLSR125.X series specialty fuses is very reliable and efficient. The fuses are made of silver, tin, lead and other material. They consist of a cylindrical body with a hinged cap on one end. Inside the body there is a metal strip attached to a metal spring. When excessive current passes through the fuse, the metal strip will heat up and melt under the action of the electric current, resulting in a break in the circuit.

Conclusion

FLSR125.X series specialty fuses are designed for applications in various circuit protection and isolation solutions. They use a basic melting principle, and the fusible element inside such fuses can melt down when the current exceeds the rated amperage. The product construction is very reliable and efficient, and they consist of a cylindrical body with a hinged cap, a metal strip and a metal spring. Fuses with higher current ratings are usually made of heavy materials and designed with more diverse shapes.

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