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LA100P3504 Application Field and Working Principle

Introduction

The LA100P3504 is a type of electrical specialty fuse used to protect electrical and electronic circuits from short-term, high-current faults from overcurrents. It is commonly used to deliver over-current protection for low voltage, low current circuits such as house wiring, and is typically found in newer buildings. This fuse type is also used to protect circuits from damage caused by voltage spikes, as it is designed to quickly detect a fault and blow before current exceeds the safe limits.

Application Field

The LA100P3504 is mostly used as a general-purpose fuse in residential and commercial buildings for protection from over current related faults. It can be found in circuit breaker panels, subpanels, and load centers, typically guarding against any short-term current overloads. The fuse is rated at 100amp and 350 volts, making it suitable for a wide variety of circuits, including those with higher voltages. Other applications may also include use in motor control circuits, such as existing in HVAC systems, as well as communication control systems and other current-carrying circuits.

Working Principle

The working principle of a specialized fuse like the LA100P3504 is simple. It consists of a metal strip (or wire) that is heated and fused by a current overload or voltage surge. The fuse consists of a metal strip surrounded by an insulation material. When a certain limit of current passes through the metal strip, due to overcurrent or voltage surge, the heat generated melts or vaporizes the insulation material and subsequently the metal fuse link. This breaks the circuit thus protecting it from overcurrent or voltage damage. When this blow occurs, the current is automatically disconnected, reducing the risk of accidental electric shock or further circuit damage.

Conclusion

The LA100P3504 is a specialized fuse that is used for protecting electrical and electronic circuits from the potential damage caused by short-term, high-current faults, or more commonly known as over-currents. It is most commonly used in homes or buildings to deliver general-purpose fused protection from current overloads and voltage spikes. The fuse consists of an insulated metal strip surrounded by a sacrificial link that heats up and melts when an over current or voltage surge occurs. The melting of the link quickly cuts off the current before it can cause any lasting damage to the circuit.

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