MS47WS-1400

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MS47WS-1400 Application Field and Working Principle

MS47WS-1400 accessories, a type of electronic current limiting fuse, is mainly a kind of overvoltage protection device, which is mainly suitable for the overcurrent protection requirements of electrical equipment in the power transmission and distribution system of 380V AC. It is also widely used in the fields of power plants, railway substations, telephone systems, engineering and process control, communications, industrial automation, motor and transformer protection, as well as computers and equipment.

Application Field of MS47WS-1400 Accessories

The MS47WS-1400 accessories is comfortable and economic to use for the protection of main transformers or large cables within a transmission and distribution system. Additionally, the accessories can be used as business protection lines in the secondary system, for instance in distribution cabinets as well as in the end user’s system. It is fit for installation in indoor, outdoor, and on photovoltaic module assembly platforms.

The MS47WS-1400 accessories are also used for the protection of household appliances, industrial control systems, and electronic equipment, in which case the product will supply safety protection against overvoltage and overload. Also, the fuse is widely applied for the protection of sensitive electronics in terms of preventing fire and internal fault at the same time. In the automotive industry, the product is used as the ideal temperature protector in a car, protecting the battery from over-current caused by the start-up of ignition and leaving engine running with no electricity.

Working Principle Of MS47WS-1400 Accessories

The MS47WS-1400 accessories is an electronic current limiting fuse that operates by means of overcurrent protection. The fuse is made up of thermistor body as well as a heat-release filling which short circuits when the temperature in the center of the thermistor body reaches a critical state. When the ambient temperature of its surrounding is low, the fuse’s quenching temperature and thermal time constant are determined by the characteristics of the thermistor body.

The gas-filling material of the MS47WS-1400 accessories will need some time to reach the quenching temperature so as to separate the heat produced by the heat source of overvoltage or overcurrent into two parts: one is the heat released by the gas-filling material, and the other is the heat dissipation into the ambient air. The gas-filling material of the fuse will produce as least amount of air’s enthalpy for heat production and no hot air will be emitted. This ensures the surrounding of the fuse will not be heated up and hence no additional heat is produced at the burning of the current limiting fuse.

When the current limiting fuse is exposed to overvoltage or overcurrent, its heat source is generated at the center portion of the thermistor body and the heat is rapidly transferred to the points within it. The heat generated is then transferred to the gas-filling material at the same time, making the gas-filling material have rapid temperature increase and the heat is released. Within a timeframe, the temperature at the center of the thermistor body is raised to the quenching temperature of the gas-filling material, causing the fuse quenching quickly to reduce the chance of fire or equipment damage and thus protecting the equipment.

Conclusion

In conclusion, the MS47WS-1400 accessories is an electronic current limiting fuse with application fields in a wide range of industries such as power plants, railway substations, telephone systems, engineering and process control, communications, industrial automation, motor and transformer protection, as well as computers and equipment. Furthermore, the working principle of the fuse includes the thermistor body and a heat-releasing filling which separates the heat produced by the heat source of overvoltage or overcurrent into two parts, thus protecting the equipment.

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