LA130URD73LI0500

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LA130URD73LI0500 Application Field and Working Principle

LA130URD73LI0500 is a popular electrical specialty fuse. It is an S type fuse rated at 10A used in air circuit breakers (ACBs) to provide short-circuit protection. It is a three-pole fuse with 20 amperes (A) on all poles. It also has a response time requirement of 5 ms. Due to its feature of reducing arcing during operation, it is preferred in special types of applications, such as arc furnace protection and line protection.

LA130URD73LI0500 is designed with an integrated thermoplastic shell. This shell serves to provide additional protection to the internal components against moisture, dust, and other external elements. It also provides insulation and a secure fit. Furthermore, this shell also includes a patented “heat shield” design which promotes effective rapid cooling of the fuse in the event of an overload, resulting in an improved fuse life.

In terms of the working principle, LA130URD73LI0500 uses a special type of metal alloy for its fuse element. This alloy, known as a current-limiting fuse, is designed to quickly reduce current when excess current flow occurs, thus preventing hazardous arcing and resulting equipment damage. It also has a thermoplastic cover which acts as an additional barrier, protecting against accidental contact and preventing inrush current from reaching the fuse element. Furthermore, the fuse element is also designed to “self-recover” when the current reduces to normal levels.

LA130URD73LI0500 is suitable for both AC and DC circuits, and is commonly used in applications such as motors, transformers, and heating elements. It is particularly popular due to its quick response time, efficient current limitation, and its ability to reduce arcing during operation. As such, it offers a reliable and cost-effective solution for protection against short-circuits and other overloads.

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