0LMF02.5H

0LMF02.5H Application Field and Working Principle

OLMF02.5H is one type of special electric fuses designed by Huazheng Electric Manufacturing Co. Ltd. This type of fuse is suitable for AC 50HZ / 60 Hz circuits with rated voltage up to 380V and rated current up to 20A. It is mainly applied in protecting the circuit and equipment motors from being damaged due to overload and short circuit.

Features of OLMF02.5H

The OLMF02.5H special electric fuse has simple and reliable structure, a long service life, and good current limiting performance. It is small but can carry large current, which makes it suitable for protecting sensitive circuits and equipment. The fuse contacts are arc-suppressed and have excellent electrical efficiency with very low watt loss and energy consumption. It also has good anti-thermal shock and anti-vibration properties. Moreover, it’s capable of withstanding high over-current and short-circuit currents, while its operation characteristics are less affected in the presence of high inrush current.

Working Principle

OLMF02.5H special electric fuse uses the current-limiting principle to protect the circuits and equipment. When the electric current exceeds the rated value, the fuse contact will open to cut off the transmission of current and protect the circuit and the equipment. The circuit will be re-activated when the current returns to its normal value.

OLMF02.5H also adopts a special design which provides protection from both overload and short-circuit currents. When an overload current occurs, the fusible element inside the fuse will melt due to heat produced by current. This will cut off the current before it has a chance to damage the equipment. If a short-circuit occurs, the current is limited and the current-carrying structure of the fuse will be destroyed, thus ensuring safety of the circuit and equipment.

Conclusion

As a special electric fuses, OLMF02.5H is well-suited for a variety of applications due to its simple and reliable structure, long service life, and good current-limiting performance. In addition, its features and operation principles make it an effective protection device for highly sensitive circuits and equipment.