JCR-A-4R

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The JCR-A-4R is a specialized type of fuse designed for use in applications that require robust and reliable current protection at very high levels. This type of fuse is designed for direct current applications, and it features a design that limits the amount of current that it can safely carry. This makes the JCR-A-4R an ideal choice for applications that require high voltage and high current capacities. In particular, this type of fuse is often used in the motor control, voltage regulator, and AC/DC inverter applications.

The JCR-A-4R fuse is constructed primarily from a glass tube that is filled with a silver powder, which serves as the fuse element. The powder is heated to temperatures between 1000ºC and 1200ºC and then melted into a solid mass, which causes it to act as an electric conductor. Once the current level rises above the maximum permissible level, the powder melts and forms a gap, which interrupts the current flow and disables the electric circuit.

The JCR-A-4R fuse features an internal temperature sensing device that triggers when the temperature of the fuse exceeds the pre-set value. This helps to prevent the fuse from melting or breaking due to high levels of current. Additionally, the fuse imparts a force to the circuit between the terminals that protects the fuse against short-circuiting and current overloads. Essentially, the JCR-A-4R fuse is designed to provide both a current overload protection and an over-temperature protection.

This type of fuse is available in a number of different voltage and current ratings, allowing it to meet the needs of various applications. Additionally, the JCR-A-4R fuse offers a range of construction materials, such as ceramic, porcelain, and glass, that make it suitable for a variety of uses. The maximum current rating of this fuse is 100A, with a voltage rating of 800V.

The JCR-A-4R fuse is an excellent choice for applications where very high currents and voltages are common. The fuse’s unique construction and design ensures reliable performance in harsh environments and helps to provide peace of mind that the circuit is protected from overcurrents and over-temperatures. Due to its robust construction and reliable performance, the JCR-A-4R fuse is a popular choice in the motor control, AC/DC inverter, and voltage regulator applications.

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