170M4807

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170M4807 application field and working principle

In the area of electrical and specialty fuses, the 170M4807 is a common fuse used in applications. The fuse is a low voltage, class G, time delay fuse that is designed to protect low voltage circuits from overcurrent or electrical faults.

Application Fields

The 170M4807 is used for applications from 3 to 480volts AC operation. These applications include low voltage light-duty motors, variable frequency drives, heating and air conditioning, pumps, compressors, and HVAC systems.

The fuse is also suitable for applications where it might be exposed to extreme high moisture, dust, or chemical atmospheres. This is due to the construction and the components used on the fuse, including an encased thermoplastic housing, corrosion-resistant steel terminal screws, and superior contacts. The design of the housing also helps to avoid possible damage from typical installation vibrations.

Working Principle

The working principle of the 170M4807 fuse is simple. When an overcurrent or electrical fault occurs, the fuse element expands, allowing the conductive insulation inside the housing to disintegrate. This creates a separation between the two ends, preventing further current flow and automatically shutting off the power to the circuit being protected.

The 170M4807 is a time-delay fuse, so it allows a slightly slower reaction time than a non-time delay fuse would. This is to help prevent inadvertent circuit shutting off due to unanticipated momentarily in-rush currents or inductive loads. Additionally, the fuse has a fusing factor of 1.45, meaning it can tolerate a maximum current of 1.45 times its rated amperage within 10 seconds without tripping or damaging the protected circuit.

Advantages

The main advantages of using a 170M4807 fuse include:

• It is designed for long life and durability.
• It meets UL, CSA, and IEC standards for safety.
• It is resistant to water, dust, and chemical atmospheres.
• It is suitable for low voltage applications.
• It has a time-delay feature, allowing it to handle momentary inrush currents or inductive loads.
• It has a high fusing factor, meaning it can handle higher than the rated current for short periods.

In conclusion, the 170M4807 fuse is a reliable and economic solution for low voltage applications and processes that could be exposed to harsh conditions such as water, dust, or chemicals. The fuse is designed to provide maximum protection and durability in the event of an electrical fault in the process.

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