3SBP 100

Fuses have long been used in electronic applications. They are designed to break an electrical circuit, providing instantaneous overcurrent protection for the system they are connected to. 3SBP 100 fuses are a type of Industrial Plug Fuse offering overload and short-circuit protection. They are commonly used in the industrial environment as fixed fuses for direct panel mounting.

Applications

3SBP 100 fuses are designed to protect electrical circuits in the industrial environment such as for use in control panels, distribution boards, and feeder equipment. The rated current of the fuse is 100A, and its rated operating voltage is 690V AC. It is suitable for DC use up to 500V, and its rated short-time current is 30kA. The fuse is also available with various mounting accessories, such as release levers and doors, secondary bolts, connection lugs, and identification tags.

Working Principle

3SBP 100 fuses are metal-enclosed, plug-in fuses that must be used with a correlating fuse holder. When an overcurrent or short-circuit event occurs, the fuse element in the fuse heats as a result of high current, and consequently melts. This causes an electrical opening between the user and the system being protected, thereby providing overcurrent protection. The fuse has a thermal delay, meaning that it will take time for the fuse element to heat up the melting point and cause the fuse to open.

The 3SBP fuse also offers short-circuit protection through its current limiting properties. The fuse will quickly blow as a result of a high current surge, limiting the amount of current that can pass through the fuse and protect the system from damage. The fuse also has an i²t function, which means that it will further limit the duration of the short-circuit event.

Conclusion

3SBP 100 fuses are designed for industrial applications where reliable protection of electrical circuits is required. They offer thermal delay, current limiting, and i²t circuit protection. By incorporating these features into one fuse, they provide an optimal level of safety in the case of an overload or short-circuit event.