170M7489

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Introduction

The 170M7489 fuse is specifically designed for use in industrial applications. It is a high-performance, thermally and mechanically rugged, medium-voltage fuse that is used to protect overcurrent power circuits from overload and short circuits. It is frequently used in applications such as high-capacity motors, power transformers, circuit breakers, and other high-power equipment. This fuse can also be used in sensitive instrument circuits in both industrial and consumer applications.

Application Field

The 170M7489 has a rated voltage up to 13.8 kV and is suitable for use in medium-voltage applications. It is most commonly used in industrial, power, and instrumentation circuits. Its thermally and mechanically rugged design make it suitable for use in harsh environments that require high levels of protection. It also features a current-limiting design that helps reduce the severity of the fault and limit the size of the resulting arc-flash.The 170M7489 is also suitably used in electric and low-power motor control circuits. This fuse is thermally and mechanically robust enough to handle the large inrush currents associated with motor start-up and power supplies. It is also a good choice for use in hazardous location circuits, as it is rated UL Class H and carries the appropriate certifications.

Working Principle

The 170M7489 operates on the same basic principle as other fuses. When a fault or overload occurs, an arc is formed between the elements of the fuse and the leads of the fuse holder. This arc melts a portion of the fuse body and breaks the circuit. The current-limiting design of the 170M7489 helps to reduce the severity of the arc-flash and limit the size of the resulting fault current. The fuse also has a non-interrupting barrier between the fuse elements and the leads of the fuse holder, which helps to prevent sparks from being released into the surrounding environment. The fuse is also equipped with a thermal trip mechanism which helps to ensure that the fuse does not re-arc after it has performed its reset action.

The 170M7489 has a number of design features that make it suitable for a wide variety of applications. It is UL Recognized and meets the requirements of CSA and CE standards. The fuse has a ratings up to 13.8 kV and can handle a maximum of 650 A. It also features a thermally protected design that helps to minimize the risk of failure due to overheating. The fuse also features a current-limiting design, which helps to reduce the severity and size of the arc-flash generated by a fault. The 170M7489 also has a non-interrupting barrier between the elements and the leads of the fuse holder which helps to prevent sparks from being released into the surrounding environment.

Conclusion

The170M7489 is an high-performance, thermally and mechanically rugged, medium-voltage fuse that is used to protect overcurrent power circuits from overload and short circuits. It is commonly used in industrial, power, and instrumentation circuits, as well as electric and low-power motor control circuits. It features a current-limiting design which helps to limit the size of the arc-flash generated by a fault, as well as a thermally protected design and non-interrupting barrier which helps to minimize the risk of failure due to overheating and prevent sparks from being released into the surrounding environment. The 170M7489 fuse is a reliable and cost-effective way to protect industrial, power, and instrumentation circuits.

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