0FLM.400T

0FLM.400T Application Field and Working Principle

0FLM.400T is a type of specialty fuse with wide application in the electrical field. It is designed to protect medium voltage cables and wires from over-current damage. This type of fuse has the capability to detect both high-current surges and sustained overload conditions caused by an over-current, opening its contacts at the specified over-current level.

0FLM.400T has a cylindrical body with a metal top, and is most often mounted on the cable or wire itself. The cylindrical body houses the bimetallic strip and the two contacts, along with a terminal block to connect the power input and output. A notch at the top of the fuse body contains the arc extinguisher.

The working principle of 0FLM.400T is based on the melting of the bimetallic strip at the specified overload current level. When the cable or wire is subjected to excessive current, the bimetallic strip warms up and bends, cutting off the power current as soon as it reaches the melting point. The arc extinguisher contained in the notch will extinguish any arcs that may form.

The rated current of the 0FLM.400T is set by the manufacturer and must not exceed the maximum allowable current rating of the cable or wire. Over-current protection must be provided to protect the cable from potential damage. The fuse should also be tested periodically and replaced whenever it fails to respond correctly.

Aside from the cable or wire protection, 0FLM.400T fuses can also be used for general-purpose protection. The fuse is designed to work with transformer, generator, motor, and other high-current equipment, providing over-current protection to these devices. In some cases, these fuses can also be used to prevent overloads caused by circuit breakers or other switching devices.

In conclusion, 0FLM.400T is a highly efficient and dependable specialty fuse with multiple application fields in the electrical industry. Its working principle is simple and robust, providing overload protection to cables, wires and other high-current devices. It is important to use the fuse with the right current rating to prevent overloading of the cable or device, and it must be tested regularly to ensure proper protection.