3539

Fuseholders are devices used to connect and secure fuses in electrical systems for overload and short circuit protection. The 3539 fuse holder is an enclosed unit designed for ease of use and superior circuit protection. It is an ideal choice for applications where space and mounting features are limited. This article will explain the application fields and working principle of the 3539 fuse holder.

Applications

The 3539 fuse holder is especially suitable for use in areas where space is limited, such as street lighting, solar inverters, medical devices, home appliances, and more. Due to its enclosed design, it is more resistant to dust, dirt, and moisture, making it an ideal choice for outdoor applications. The 3539 fuse holder is available in a wide variety of sizes and is rated for voltage ratings of 0-600V and current ratings of up to 30A. It is UL listed and meets the requirements of UL 248-14, UL 248-17, and UL 248-20.

Working Principle

The 3539 fuse holder consists of a molded plastic case that encloses the fuse and a metal contact block. The contact block is used to connect the fuse to the electrical circuits. The contact block is further secured in place by two screws on the outside of the case. The fuse is only exposed to the circuit when the fuse holder is opened. When the fuseholder is closed, the fuse is completely enclosed in the case, providing added protection.

The contact block of the 3539 fuseholder consists of two brass terminals and two copper terminals. The brass terminals make contact with the fuse, while the copper terminals make contact with the electrical circuit. When the fuse is inserted and the fuseholder is closed, the brass and copper terminals make contact and the fuse is connected to the circuit. When the circuit is overloaded or shorted, the fuse will blow, protecting the circuit from damage.

Conclusion

The 3539 fuseholder is an enclosed unit designed for ease of use and superior protection. It is suitable for use in applications where space is limited and is available in a variety of sizes for different applications. It is UL listed and meets the requirements of UL 248-14, UL 248-17, and UL 248-20. The fuseholder is constructed with a molded plastic case that encloses the fuse and a metal contact block for connecting the fuse to the circuit. This ensures superior protection for the circuit as the fuse is only exposed to the circuit when the fuseholder is opened.