SPFI03.5L

SPFI03.5L Application Field and Working Principle

SPFI03.5L is a special type short circuit fuse manufactured and designed by a Chinese manufacturer. It’s a unique design among the varieties of the special type fuses, with a wide application range in many kinds of different industry, such as automobile, wind generator, generator machine, laptop and mobile phone industries, as well as a great compatibility with different kinds of electronic devices.

SPFI03.5L is composed with two basic elements: a main contact switch and a breakable metal carrier. Its main contact switch is a surface type spring loaded contactor switch. The metal carrier of the SPFI03.5L fuse is composed with three thin plates. The first and third plate are connected at two opposite ends of the switch, while the middle plate is connected at the center. The fuse’s design has a high faulty circuit current rating of up to 35 amps, which contributes to its effectiveness in the application field.

The working principle of SPFI03.5L is relatively simple and straightforward. When a current below the specified rating flows through the fused metal carrier, the metal carrier of the fuse conducts the current and the contact switch contacts remain closed without tripping. On the other hand, when the current exceeding beyond the specified rating, the contact switch will be opened as the current passing through the metal carrier heats up the contact switch. This causes the contact switch to be tripped and the current is prevented from passing through the fuse.

SPFI03.5L is an excellent choice of fuse for those who require high current rating yet be able to fit within a compact space due to its small size. Its wide application range and great compatibility among different electronic devices make it a great choice for different applications in different industries.