0157.080DR

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Fuses are primarily designed to protect against over-current or overload voltage. The 0157.080DR Fuse is no exception, as its application field and working principle are based on this same concept.

Generally, these fuses consist of an outer conductor (the body) with an internally embedded fuse element. The fuse’s resistance and current carrying capability depend on its material composition and internal fuse element construction. Specifically, for the 0157.080DR Fuse, the fuse element is made of silver-nickel alloy, and has a rated breaking capacity of 80A, with a melting I2t of 950A2S.

The 0157.080DR Fuse is designed mainly as a bipolar (AC) over-current protection device, and is suitable for low voltage Alternating Current (AC) circuits. It is particularly used to protect common low voltage household and commercial circuits, such as lighting and HVAC systems. It can also be used to protect certain motors that have special overload requirements but that are not served by other motor control protection devices.

In addition to over-current protection, the 0157.080DR Fuse can be used in DC power circuits to provide over-voltage protection. This is done by reducing the circuit current to safe levels if the voltage levels reach dangerously high values. When the current reaches a safe level, the voltage levels drop automatically and the fuse will reset.

The working principle of a 0157.080DR Fuse is relatively straightforward. When an increase in current passes through the series of links in the fuse, it heats up the internal elements. The heat generated by the current causes the polymer material in the element to swell and expand. As the expanding material reaches a predetermined breaking point, it disrupts the current flow, causing a short circuit. This rapid decrease in current flow affects the voltage levels, and the circuit is ‘flashed’ and reset.

Furthermore, this particular 0157.080DR Fuse is also equipped with an indicator light that will be lit when the fuse has been activated, allowing for easy identification and diagnosis of the faulty circuit.

The 0157.080DR Fuse is a reliable solution for many different low voltage AC and DC circuits and provides effective overload and over-current protection. It is easy to install, and its compact design makes it well-suited for a number of different electrical applications.

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