MV155F1DBX20E

Electrical specialty fuses have been widely used in many modern industries and the associated safety regulations dictate that certain electrical systems should only be operated with specific, carefully considered, fuses. The specific fuse needed in these applications is the MV155F1DBX20E. It is important to understand the application fields of the MV155F1DBX20E, as well as its working principle, as outlined below.

Application Field

The MV155F1DBX20E is specifically designed for applications which require over-current protection of single phase motor circuits from currents of up to 20 amperes (A). This single-pole type fuse is designed to be used in air conditioning and refrigeration equipment, as well as ventilation systems in various industries.

The fuse also finds applications in circuits with significant inrush current surges, such as those seen with the start up of single phase induction motor, as well as freezers and refrigeration systems.

Working Principle

The main function of the MV155F1DBX20E is to remove power from a circuit when an overload or short circuit is detected and isolate the circuits from each other. To achieve this, the fuse utilizes the melting of the internal wire core, which is designed to be significantly thinner than that of an unfused circuit, allowing it to melt at a much lower component temperature.

The solar system based inrush current protection system incorporated into the MV155F1DBX20E limits the inrush current to the circuit, protecting it from the surge of high current during start-up. This system also includes a protection fuse, which is specially designed to control the rate of rise during the inrush period.

The MV155F1DBX20E also features an LED indicator, which helps in determing the status of the fuses who\'s status has become uncertain. The LED indicator illuminates when the fuse has been activated, confirming that the fuse has been rendered non-operational.

Conclusion

The MV155F1DBX20E is an ideal electrical specialty fuse designed for protection in single-phase motor circuits, from current surges during startup, up to 20 A. It also features a solar system based inrush current protection system and an LED indicator to easily determine the status of the fuse at any given time.