10E1CL5.5

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Electrical specialty fuses and their corresponding applications are a crucial aspect of any electrical system. Fuses are fundamental in the protection of electrical circuits, ensuring that any issue is contained and resolved swiftly. Within this context, 10E1CL5.5 fuses are among the most widely used specialty fuses due to their ability to perform in a variety of situations. This article will outline the applications and working principle of the 10E1CL5.5 in detail.

What is 10E1CL5.5?

The 10E1CL5.5 fuse is a current limitation fuse (CLF). CLFs are designed to ensure that any overload at a certain rating will cause the fuse to blow at a safe current level. Unlike other fuses, the current limitation of the 10E1CL5.5 is proportional to the load current. The reduction in current limitation is greatest at very low load currents, thus making it suitable for use in power supplies, variable speed drives and other variable load applications. The fuse is also much less sensitive to small overvoltage spikes, making it suitable for high-transient environments.

Application Field

Since CLF\'s like the 10E1CL5.5 help maintain a low operational temperature and are also capable of withstanding high-transient environments, they are suitable for areas with high-transient conditions. This makes them ideal for applications such as, AC and DC transient suppression; power supply and motor protection; and motor, drive and variable load current protection. Such applications include, electric motors, wind turbines and renewable energy systems.

The 10E1CL5.5 fuse is also suitable for applications that require protection against the unpredictable and potentially dangerous effects of overload surges and spikes. It can help protect surge suppressors, power supply transformers, DC-DC converters, current transformers, bus bars and other electrical equipment. Lastly, the 10E1CL5.5 is able to protect against high-frequency noise and transients, which can occur during switching and other activities that shift current in the equipment.

Working Principle

The 10E1CL5.5 fuse has a working principle based on thermal and electrical energy. This is combined with induction to limit the current flow in the event of an overload. The fuse is made up of multiple electrical components including an arc chute, an arc shield, electrodes, and a main fuse body. In a typical overcurrent situation, the current will travel along the arc chute and cause the arc shield and electrodes to become heated. The heat of these components will cause the internal pressure to increase and shortly after, the main fuse body will be destroyed, thus interrupting the electrical circuit.

In a transient condition, the small inductive current in the circuit can cause an arc to form in the shield and electrodes. This arc will cause current to flow through the gas mixture, increasing pressure in the main body. The increased pressure will force the main fuse body to open and interrupt the circuit.

The 10E1CL5.5 fuse also uses a heat sensitive ceramic reinforcement tube. This tube is inserted in the internal chamber of the fuse and heats up as the current passes through it. When the heat-sensitive chamber exceeds a predetermined temperature setpoint, the fuse is opened and the circuit is broken.

Conclusion

The 10E1CL5.5 fuse has a variety of application fields due to its current limitation capability and ability to protect against high-transient environments. It is used in diverse applications from motor protection to wind turbines and its ability to respond in different scenarios is highly valued. The fuse’s working principle is based on thermal and electrical energy and the addition of a heat sensitive chamber makes it suitable for a range of environments.

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