170M3740

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Fuses have been around for over 100 years and remain a safe and reliable component in electrical systems. The 170M3740 is a special type of fuse typically used in high voltage applications, such as power lines and substations, where an overly-powerful current overload would cause catastrophic damage to the system, should it occur. As one of the few components ABB designed to be both highly reliable and cost-effective, the 170M3740 electrical fuse is designed for just this purpose.

The 170M3740 has a UL Recognized rating rated as a 200kA breaking capacity, along with a short-circuit current rating of 200 kA RMS symmetrical at 480V AC. It has an interrupting rating that ranges between 10 kA and 200kA AC/ DC at the rated voltage. This makes it the ideal fuse for protecting electrical systems in areas where transients, such as lightning strikes, are frequent and severe.

The working principle of the 170M3740 is that it cuts power to the circuit in the event of an overload. Current travels directly through the special alloy housed within the fuse, and if the current exceeds the rated amperage, it has the potential to cause damage to the component or the circuit. As a result, the 170M3740 will open, disconnecting the circuit and preventing further damage.

The 170M3740 is designed and rated to withstand a wide range of temperatures, from -40° to 70°C, and is suitable for load-interrupting applications up to 600V. In terms of UL Recognized ratings, the fuse is rated in accordance with UL Standard 89, specifically to UL Guide JDYX/ JDYV. It is also VDE EN 60269-2 certified, in accordance with the requirements of IEC/ EN 60939.

In terms of size and dimensions, the 170M3740 is a cylindrical, threaded fuse that is available in three sizes: 1, 2 and 4 inches. It also comes in a J-Type version, which is a chamber-type fuse. The enclosure is made of flame-resistant plastic for high-resistance application in harsh conditions. As for its primary technology, the fuse uses its Sulfur-enhanced Silver Ring (SE-SR) technology.

This technology is an upgrade of the traditional Silver Ring (SR) technology that improves the performance of the fuse and increases its breaking capacity. The SE-SR technology uses the latest nano-technology to evaporate the Sulfur into the fuse housing, allowing for a higher breaking gap and a much better performance in current interruption, as well as greater resistance to fault conditions.

All in all, the 170M3740 electrical fuse is an ideal solution for high voltage and power line applications, where a reliable and cost-effective fuse is needed. Its UL Recognized rating, high interrupting rating, wide operating temperature range, and SE-SR technology make it an ideal choice for those seeking a reliable fuse for their electrical needs.

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