LA130URD73TTI0400

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LA130URD73TTI0400: Application Field and Working Principle

LA130URD73TTI0400 is an electrical specialty fuse developed by FM Approvals. Being designed as a replacement for the L03TD series, the UL-listed fuse is specifically engineered to provide reliable protection for electrical circuits from over-current and overload, while fulfilling UL requirements. Its application fields include industrial control and residential motor protection, as well as light commercial control.

Application Field

The application fields of LA130URD73TTI0400, as mentioned, include industrial control and residential motor protection, as well as light commercial control. In industrial control systems, the UL-listed fuse is widely used for the protection of motor-operated equipment, as well as general-purpose circuits. In motor protection applications, it is ideal for single-phase motors and applications running at 208 volts or less. In light commercial control, LA130URD73TTI0400 is used for protecting power converters, air conditioning systems, humidifiers, vending machines and office equipment.

Working Principle

The working principle of LA130URD73TTI0400 is related to its design. The UL-listed fuse utilizes an advanced design to handle higher voltage and higher current applications. It uses a specially formulated zinc alloy, this contact material has a low temperature coefficient of resistance ensuring a consistent current interrupting capability over a broader temperature range. The specially designed alloy also has an improved capability for handling arc energy also found in excessive over-currents.

It also relies on an interference fit connection, coupled with spring-loaded contact pushing the fuse into the contact and realizing a superior connection. This ensures a good, strong electrical connection at the point of interruption, and is a major benefit of the LA130URD73TTI0400 design.

Conclusion

In conclusion, LA130URD73TTI0400 is an UL-listed electrical specialty fuse developed by FM Approvals. It has numerous application fields in industrial control systems, residential motor protection as well as light commercial control. Its working principle relies on a specially formulated zinc alloy in contact material and interference fit connection, with spring-loaded contact pushing the fuse into the contact for superior electrical connection.

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