DFJ-4

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

DFJ-4 is a special type of electrical fuse designed for short-circuit and overload protection of important electrical equipment. It has a small size, excellent performance characteristics, and is suitable for both low-voltage and high-voltage applications. DFJ-4 offers a high degree of protection to equipment, minimizing the risk of dangerous overloads.

Application Field

The DFJ-4 is a dual element fuse, designed for use in a range of applications in medium and low voltage electrical networks. Typical applications include the following:

• Protection of electrical motors, transformers, cables and other components in power distribution systems;
• Protection of control and diagnostic equipment in electrical systems;
• Protection of sensitive electronic equipment, or to meet special safety requirements;
• Protection of polyphase loads, with current ratings up to 16 Amps.

The DFJ-4 is also compatible with the use of solid-state elements. This makes it suitable for protection of components with higher current ratings.

Working Principle

The DFJ-4 works by sensing an overload and then tripping the circuit breaker or fuse to limit or eliminate the current going through the circuit. The overload is detected by two elements that are connected in series. The first element is designed to sense the temperature of the current in the circuit. This temperature is then compared with a pre-determined trip point and, once it is exceeded, the second element triggers the trip mechanism. The process is known as thermal tracking.

The DFJ-4 has a unique dual element design which provides greater protection than a single element fuse. This is because the two elements work together to more accurately detect even minor overloads and help to prevent catastrophic failure or damage to the equipment it is protecting.

The DFJ-4 is also equipped with an internal vibration mechanism and a resetting system, which help to recover from accidental overloads. This helps to reduce the risk of permanent damage to the equipment and eliminates long periods of downtime.

The DFJ-4 is a reliable, efficient and cost-effective fuse and is suitable for use in a wide range of applications. Additionally, its compact size makes it easy to install and maintain.

The specific data is subject to PDF, and the above content is for reference