39601600440

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Introduction to Fuses

Fuses are devices used to protect electrical circuits from electrical overloading or short-circuiting. They are designed to quickly “blow” (open) if an excessive current flows through them, interrupting the circuit and preventing damage due to overloading or short-circuiting. The types of fuses used in electrical applications range from those used in industrial and commercial settings to those found in household appliances.

3960162044 Application Field and Working Principle

3960162044 is an UL Class L, legended “Time-delay Fuse” fuse manufactured by Littelfuse®. This fuse is designed for controlling currents up to 600V AC in various industrial and commercial applications. The time-delay feature prevents nuisance tripping when the starting current of a motor or other momentary surges are higher than the normal operating current, allowing motors and motors-driving pumps to start up without interruption.

3960162044 uses current-limiting technology. Current-limiting fuses have a low energy-let through value, limiting the fault current levels to values below the amount that can harm personnel and costly equipment in the event of a fault. The fuse consists of two parts: a high-side resistor and a low-side resistor. The current-limiting device enables it to open and blow, drastically reducing the amount of current that can flow through it. This reduces the risk of damage to equipment connected to it.

3960162044 is a single-element, time-delay fuse and provides overload protection for motor controllers, small transformers, and other electronic components. It provides reliable protection for all types and sizes of motors. The adjustable time-delay element allows for the selection of the response time and reduces nuisance trips. The 3960162044 is also designed to meet UL, CSA and IEC standards, ensuring it is compatible with a wide range of equipment.

Conclusion

3960162044 is an adjustable, time-delay class L fuse made by Littelfuse® that provides reliable protection in a variety of industrial and commercial applications involving current loads of up to 600V AC. It is especially useful for motor and pump applications, where its current-limiting feature can reduce nuisance trips or tripping. It is also compliant with UL, CSA and IEC standards, making it suitable for use in a wide range of equipment.

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