DFJ-2

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DFJ-2 type special purpose fuses are suitable for the place with special purpose in the electrical system, such as large sized electric motor, power distribution equipment, electronic equipment and high power consumption capacitor bank. With precise internal structure and advanced excellent technology, they are responsible for the ignition fuses, the over-current protection and over-voltage protection, thus ensuring the normal and safe operation of the equipment.

Used as the over-current protection elements, the DFJ-2 type fuses have their own sensing capability, when the overload current reaches more than 300% or even more of the rated current, the fuse element will open immediately, thus protecting the load against the threatening of fire. When the temperature reaches higher than the operating setting temperature, the fuse element will expand and cut off the current, thus ensuring the safety of the electricians and the equipment.

As signals transmission equipment, they are also used in the communication systems, such as signal signal, signal processing and more. With sophisticated internal electromechanical configuration, their application can be extended to the protection of power grid system, such as switching device, power protection device, communication system, etc.

Different series of DFJ-2 type fuses have different working principles. Generally speaking, its working principle is to transfer short current energy into heat energy which cause the over-current protection products to reach the working melting point under the action of over-current and then, fuse element start to melt, thus causing the circuit to open and the protection action is completed.

PFJ-2 type fuses feature its excellent arc voltage performance. When the fuse element melts, it will limit the arc voltage generated, thus reducing the damage of the circuitry items and ensuring the normal operation of the electronic system. They are in high dielectric strength, encouraging the current transfer rate and helping to reduce the coil damage due to high power consumption.

In addition, they are made from special materials thus ensuring the higher mechanical strength and superior resistance to rupture load. This also helps to ensure the high frequency and vibration resistance of the instrumentation systems and significantly reduces the effect of mechanical shock, either normal vibration or from occasional mechanical shock.

Finally, DFJ-2 type fuses are reliable safety devices which are reliable, safe and secure performance guarantees. They are convenient to install and maintain. The design and production combine to make the fuse components excellent at transfer and voltage performance, over current protection, over temperature protection, low power consumption and high frequency shunting.

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