170H0047

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The 170H0047 is an electrical specialty fuse that plays an important role in helping to protect the components and circuitry of an electrical device from damage due to over-current or short circuit conditions. It also helps prevent electromagnetic interference from entering the device, leading to potential issues with proper functioning and operation.

The most typical application field for the 170H0047 is in automotive circuits. It is typically used in the line feed circuit of a car, often found in between the battery and the fuse box. The fuse box houses the various electrical fuses that keep the electrical components in the car safe and secure. The 170H0047 is also used in many residential and commercial HVAC systems to act as a circuit protector for a variety of electrical components, including compressors and motor controllers.

The working principle behind the 170H0047 is fairly simple and can be broken down into two main functions. The first is the electrical current limiting which restricts the amount of current that can flow through the circuit, preventing the electrical components from being overloaded or damaged due to excessive current. The second function is that of an electromagnetic interference filter, which works to reduce the amount of radio and electromagnetic frequency interferences from entering the circuit and causing damage to the components.

The main component of the 170H0047 is a metal strip with a “fusible link” embedded into it. This metal strip heats up when an electrical current is passed through it, either because of an overload or a short circuit condition. When the metal strip reaches a pre-determined temperature, the fusible link melts and breaks the circuit, cutting off the current and protecting any electrical components or circuits that might be connected from damage.

It is important to keep in mind that regardless of the application field, the 170H0047 must be replaced after it has had to blow off in order to keep the circuit protected. If a fuse is repeatedly damaged or blown due to over-current or short circuit conditions, it may be an indication that there is a larger issue somewhere else in the system that must be addressed.

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