L70S030.T

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Introduction
L70S030.T is a special type of electrical fuse designed for applications in low voltage, variable current power supplies. It is an economical, reliable and sacrificial protection device used in vehicles, electric lighting, home appliances, photolithography and other critical applications where sensitive loads and high current draw are required. In this article, we will discuss the application field and working principle of the L70S030.T.

Application Field
L70S030.T is a popular type of fuse used in various low voltage electrical applications. It is used in vehicles such as automobiles, trucks and boats, electronic lighting, appliance, photolithography, and other critical applications requiring reliable and sacrificial protection. The fuse is designed for nominal currents between 3A and 30A. It also has a high dielectric strength of 660V AC, making it resistant to shocks and vibrations.

Design & Construction
The L70S030.T is a self-resetting thermal fuse with an operating temperature range of -30°C to +125°C. It is constructed with a metal core body encased in a thermoplastic casing. The metal core body is composed of a heating element, current carrying bimetal, a thermally responsive metallic element, and a plurality of contacts. The fuse is hermetically sealed and designed to open in the event of a current overload or short circuit.

Working Principle
The fuse operates by using a bimetal strip and a thermal responsive metallic element. When a current overload or short circuit occurs, the bimetal strip expands, pushing the thermal responsive metallic element into contact with the contacts and making an electrical connection. This causes the contacts to open, isolating the circuit and preventing further current flow.

Advantages & Benefits
The L70S030.T is a very reliable and economical protection device designed to protect sensitive equipment and circuits. It is a highly durable and efficient fuse which is hermetically sealed to protect against shocks, vibration, and moisture. The device is designed for use in a wide range of applications and it provides reliable protection for all types of circuits. Additionally, it features a simple and intuitive design.

Conclusion
The L70S030.T is a popular type of electrical fuse designed for use in low voltage applications. It features a simple and reliable design and is an economical and highly durable protection device. The fuse operates by using a bimetal strip and a thermal responsive metallic element, isolating the circuit when a current overload or short circuit occurs. It is suitable for use in various applications including vehicles, electric lighting, home appliances, photolithography, and other critical applications.

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