170M3409

Specialty Fuses

The 170M3409 is a specialty fuse used to support positive temperature coefficient (PTC) resettable fuses. These fuses are similar in design to traditional fuses, but offer a unique feature in that they can reset after being tripped due to an overcurrent situation. The 170M3409 is a high-interrupting rated fuse with an adjustable current rating.

The 170M3409 works on the principle of thermal expansion. When the initial overcurrent passes through the fuse, an internal heating element, known as a Thermal Element, expands. This causes a mechanical disconnection of a set of internal contacts. The expansion of the Thermal Element also allows air to flow through the center of the fuse, which in turn disconnects the contact points. Once the overcurrent is blocked, the Thermal Element will gradually cool down and the disconnection of the contacts will be restored.

The 170M3409 has a wide range of applications. It is commonly used in consumer electronics, automotive systems, and industrial controls. It can also be used for protection from short circuits or from overcurrent in lighting systems, power supplies, circuit breakers, and DC motor controllers.

The 170M3409 is a reliable and cost-effective solution for providing overcurrent protection. Its adjustable current rating allows it to protect low-voltage circuits from overcurrent without the need for expensive or sensitive components. Additionally, its PTC resettable fuse feature ensures a fast and safe reset of the circuit in the event of an overcurrent.

In summary, the 170M3409 is a specialty fuse used to provide overcurrent protection. It works on the principle of thermal expansion and is commonly used in a variety of applications such as consumer electronics, automotive systems, and industrial controls. Its adjustable current rating and PTC resettable feature make it an ideal solution for low-voltage circuits requiring overcurrent protection.