3AB 500-R

Fuses are basic mechanical and electrical devices used to protect circuits by ensuring that the current flow in the circuit does not exceed the fuse ratings. The 3AB 500-R fuse is an over-current protection device designed to provide safety and protection from short circuits, overloads and internal faults. It is one of the most widely used fuse types, providing broad application flexibility.

3AB 500-R application field

The 3AB 500-R fuse is a time delay fuse designed for motor overload and short circuit protection. It is suitable for use in a wide range of industrial, commercial and residential applications, ranging from motors to lighting fixtures. It is also suitable for personal automobiles, trucks and buses, and is suitable for use in many marine, agricultural and mining applications. The 3AB 500-R has also been used in portable power sources, communications systems and fire alarm systems.

3AB 500-R Working Principle

The 3AB 500-R consists of a metal strip contained in a molded high-temperature phenolic case. The strip acts as an internal switch that opens when the current reaches the rating of the fuse, thus preventing the fuse from melting. The fuse\'s metal strip contains a zinc oxide pellet, which acts as a resistor, and an inner conductor surrounded by a glass-like sleeve filled with air. When the current passes through the fuse, the resistance created by the zinc oxide pellet causes the metal strip to heat up, melting the metal strip when the limit is reached. This effectively breaks the circuit, thus preventing further current flow.

The 3AB 500-R is designed to be used with alternating current and withstand a specified voltage rating, while providing superior short circuit protection and overload protection. Its design allows for a wide range of current and voltage ratings, enabling it to be used in a variety of applications. Its robust design also provides excellent dielectric strength and corrosion resistance for superior fuse life.

The 3AB 500-R is an integral part of any electrical system, allowing for superior safety and protection from internal faults, overloads and short-circuits. With a wide range of applications, it is easy to see why the 3AB 500-R is one of the most widely used fuse types. With its superior performance, reliability and extended fuse life, it is no wonder why it is such a popular choice in the industry.