FLB-120

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Fuses have been protecting electrical circuits from unwanted current and power surges for many decades, and the FLB-120 is one of the most common fuses used today. The FLB-120 is an industrial fuse that offers a number of features and benefits for commercial and industrial applications.

The FLB-120 is a UL listed, 20 A, 600VAC/VDC, single-element industrial fuse. It is designed to provide cost-effective, reliable circuit protection for a variety of industrial applications. The FLB-120 is a mid- range industrial fuse with high interrupting capacity, fast-acting time-delay characteristics, and superior overload/short-circuit protection.

The fuse is constructed from a high-grade zinc alloy body, with a silver-plated copper end cap for increased durability. The fuse element is made from a combination of lead and tin, and the ends are sealed with epoxy resin. The body of the FLB-120 contains a ferrite core that helps to reduce the inductive volt-time characteristics of the fuse, improving its performance and reliability.

The FLB-120 is designed for fast-acting time-delay characteristics and provides superior overload/short-circuit protection. It features an LED indicator that lights up when the fuse is connected to a live circuit, allowing for visual confirmation of circuit protection. This also eliminates the need for test lamps when inspecting the fuse.

In addition, the FLB-120 has a wide operating range and is capable of handling high inrush current and short circuit current, making it suitable for use in a variety of industrial applications including motor drives, solar inverters, variable frequency drives, power supplies, UPS systems, switching power supplies, and more.

The working principle of the FLB-120 is fairly simple. The ferrite core inside the fuse helps to limit the surge current of the fuse, while the fuse element prevents any further current from passing through. When an overcurrent is detected, the fuse element melts and breaks the circuit. The molten metal also cuts off the connection which isolates the circuit and prevents further damage from occurring.

In summary, the FLB-120 is an industrial-grade fuse that offers superior circuit protection and reliability. It is designed for a wide range of applications, and its fast-acting time-delay characteristics make it an ideal choice for protecting industrial circuits from power surges and overloads. The ferrite core design and LED indicator also make it easy to use and monitor, while its UL listed design ensures safety and provides peace of mind.

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