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Fuses

Fuses, by definition, are cylindrical or tubular, low resistance devices designed to melt and thereby break an electrical circuit when a predetermined current flow is exceeded. Used effectively in the circuit protection process, fuses are the first line of defense against excessive currents that can cause harsh damage to delicate circuitry and related components.

125.7000.5102 Fuses: Application Fields and Working Principle

The 125.7000.5102 type of fuses is a fast acting ceramic cartridge fuse and is commonly used for power supplies, particularly those made to comply with the IEC/EN 60229 standard. The fuse is rated for a maximum current of 5 Amps and is designed to respond rapidly to sudden current increase and work quickly regardless of voltage and temperature fluctuations. These features make it suitable for applications that require reliable over-current protection.

The 125.7000.5102 fuse is small in size, lightweight and is cost effective compared to other fuses. it is also prepared for dynamic conditions and is suitable for inrush current. Other application fields includes UPS systems, CCTV power supplies, LCD/LED TVs, computer power supplies and LCD monitors.

The working principle of the 125.7000.5102 fuses is simple. The current through the fuse passes through the two ports and heats up the ceramic body, aka the thermal element. This thermal element would then melt when the current is higher than the rated notional energy, and when it melts, it will create a gap in the circuit which would disrupt the current flow and eventually break the circuit.

Conclusion

The 125.7000.5102 type of fuses is most suitable for power supplies that require a rapid response to sudden current increase. It is small, lightweight, and cost effective, offering reliable over-current protection. Its working principle is simple, and it is suitable for environments that are prone to dynamic conditions and inrush currents. Although not the most ideal choice for all applications, the 125.7000.5102 is a reliable and reliable choice for many and is well suited for the items it was designed for.

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