0495020.U

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With the development of modern industry, the demand for electrical power has gradually increased. Therefore, it is necessary to ensure that the electrical system can operate reliably and safely. Fuses are devices used to provide overcurrent protection in the electrical system, and the efficacy of fuse lies in the ability to cut off the power supply quickly in the event of an overcurrent. 0495020.U is a kind of indoor low voltage fuse developed by Schneider Electric to meet the needs of users for safety and stability.

Introduction of 0495020.U Fuse

The 0495020.U indoor low voltage fuse is an internationally labeled UL1077 supplementary protector, which is a kind of time-delay supplementary protector in Schneider Electric. This fuse is developed according to UL1077 standards, and has a rated voltage of 690V, and can be applied in 50Hz or 60Hz. In addition, this fuse has a rated current of 20A and a response time of 0.1 to 10 seconds.

The 0495020.U indoor low voltage fuse is a cylindrical fuse with a molded case constructed of high temperature resistant and fireproof resistant PC plastic material. The fuse element is composed of millimetre silver alloy wire, and the current-limiting is achieved by the fusion of the silver wire. The upper part of the fuse is equipped with a flame-retardant insulating cap, and the lower part is provided with a terminal for connecting wires. In addition, the labelling on the casing of the 0495020.U indoor low voltage fuse clearly indicates the range of fuse parameters, power handling capacity, as well as fuse useful life and connection methods.

Application field of 0495020.U Fuse

The 0495020.U indoor low voltage fuse has a wide range of applications. It can be used in circuits such as frequent startups and normal loads, and can also be used in power systems with large currents, such as motor protection. Its unique features make it suitable for use in electrical equipment that requires more protection. In addition, it can be applied to home, industrial, civil and commercial wiring systems, lighting installations, air conditioning systems, fire alarm systems, fire control systems, distribution boards, and more.

Working Principle 0495020.U Fuse

The 0495020.U indoor low voltage fuse is a kind of time-delay fuse, which is characterized by a time delay mechanism that increases the fuse response time and makes it suitable for power systems with large currents. When an excessive current flows through the fuse element, it will cause the fuse element to suddenly heat up, which will interfere with its normal operation and then melt within a certain period of time. The molten fuse element will interrupt the current-carrying process and protect the circuit from damage. In addition, the fuse element is designed with a special structure and process, and can automatically reset after the short circuit is eliminated.

Advantages of 0495020.U Fuse

The 0495020.U indoor low voltage fuse has long service life, no frequent replacement, faster response time than normal fuses, and it does not require welding and manual operations. Furthermore, its high dielectric strength and over-voltage capability protect circuits from over-voltage damage. In addition, the 0495020.U Fuse has a flame-retardant insulating cap, which can effectively prevent the occurrence of arc, and is safer to use than other fuses.

Conclusion

In conclusion, the 0495020.U indoor low voltage fuse is a kind of great advantage in modern industry. Its innovative design has improved the safety and reliability of the current power system, and has become an essential part in the system. With its special characteristics, it can be widely used in industrial, civil and commercial wiring systems. By providing accurate and reliable protection, 0495020.U fuse can effectively protect circuits from overcurrent and overvoltage damage.

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