FNQ-R-17-1/2

Introduction

The FNQ-R-17-1/2 electrical specialty fuse is a cylindrical, current-limiting fuse unit with time-delay and replaceable element functions. It is designed for use in branch circuit protection and offers a cost-effective solution for the protection of electrical equipment. This fuse also offers high interrupting ratings and is suitable for use in a variety of applications, including residential, commercial, and industrial settings.

Applications

The FNQ-R-17-1/2 fuse is suitable for a wide array of applications, including motor control panels, HVAC systems, heating and cooling systems, control circuits, instrumentation, lighting circuits, and multiple-voltage systems. It can be used to protect both indoor and outdoor facilities from power surges and short circuits, as well as provide protection for machines and equipment. This versatile fuse is UL listed for use in branch-circuit protection.

Working Principle

The FNQ-R-17-1/2 electrical specialty fuse operates by allowing current to flow through a conducting medium, which is the fuse element. When the current passes through the element, it produces heat and as the current passes through the element, the element increases its temperature and resistance. If the current continues to increase, eventually the heat generated will exceed the capacity of the element, and the element will melt. This melt will open the circuit, interrupting the flow of current, and preventing the circuit from being damaged.

The FNQ-R-17-1/2 fuse is designed with a time-delay feature that allows it to better protect the circuit and prevent any damage caused by short-circuits, over-loads, and surges. When a fault current flows through the fuse element, it takes a certain amount of time for the element to reach its melting temperature. The time-delay feature of the fuse allows it to remain closed longer, allowing the over-current to pass through the circuit before it is interrupted.

Advantages

The FNQ-R-17-1/2 fuse offers a variety of advantages compared to other fuses, including its low cost, its long lifetime, and its ability to effectively protect circuits from damage caused by short circuits, over-loads, and surges. The fuse also offers a high interrupting rating, meaning it can handle an extremely high amount of current. This high rating ensures that the fuse will be able to protect circuits from a variety of possible faults, and it also helps to improve the longevity of the fuse and the circuit it is protecting.

Conclusion

The FNQ-R-17-1/2 electrical specialty fuse is an ideal choice for a variety of applications, including motor control panels, HVAC systems, heating/cooling systems, control circuits, instrumentation, and lighting circuits. This versatile fuse offers a low cost, long lifetime, and high interrupting rating, making it an ideal solution for branch-circuit protection. It also features a time-delay feature, allowing it to better protect a circuit from damage caused by short-circuits, over-loads, and surges.