5MF 125-R

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The 5MF 125-R is a type of fuse that is designed for a variety of applications from audio wiring to larger domestic electrical installations. However, the vast majority of applications the 5MF 125-R would normally be used in are related to the protection of electrical circuits, parts or components. It is designed to protect against abnormal current levels that may be caused by electrical overloads, short circuits and other electrical issues.

The 5MF 125-R is a fast-blow fuse which means it will react quickly and blow when a predetermined current limit is exceeded. This feature makes it an ideal fuse to be installed in demanding applications where there is not enough time for a slow-blow fuse to react appropriately. The maximum current rating and voltage rating for a 5MF 125-R is 125 amps and 240 volts AC respectively.

The 5MF 125-R is constructed from a glass vacuum tube with two nickel-plated copper ends. The fuse element is located in the centre of the tube and consists of a coil that is enclosed in an amber coloured glass. This manufactures the fuse and the fuse will ‘blow’ if the current flow exceeds the pre-set comfortable current limit.

The internal construction of the 5MF 125-R is quite simple and very efficient. At the base of the fuse, a cylindrical ceramic enclosure is mounted. Inside this enclosure, the fuse wire is housed and the copper wire ends are molded into the ceramic end caps. The ends are then sealed with a black porcelain plug which creates an air-tight seal. This is important as it ensures the correct performance and safety of the 5MF 125-R.

The fuse will respond quickly and will usually take less than 0.1 seconds to blow if the current flow exceeds the preset limit. To ensure safe removal of the fuse after it has blown, a safety button is fitted and in the event of an overload the button will pop-out after the fuse has been blown.

The 5MF 125-R can be used in a variety of domestic applications, as it is generally robust enough to cope with the demands of a household electrical installation. The 5MF 125-Rcan be used to protect electric motors, power tools, audio systems, computers, TVs, air conditioners and other household electrical equipment.

The 5MF 125-R can be used in a commercial or industrial setting, although it is not recommended for high-powered industrial installations. It is however important to match the fuse rating to the application, as matching an amperage that is too high can easily cause damage to the connected electrical equipment.

Overall, the 5MF 125-R provides the electrical engineer and professional electrician with an ideal tool for fusing both domestic and commercial applications. It offers fast response times, increased safety features, predictable performance and overall cost-effective solutions to a range of electrical challenges.

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