Fuse sockets are one of the most important elements of electrical installations, mounted in distribution boards. They are essential for ensuring the correct installation of fuses and the correct operation of protection of electrical circuits against current overload and short circuit. You don't have to be an electrician to know what a fuse socket looks like. Anyone who has ever checked or replaced a fuse (or rather a fuse insert, i.e. part of the fuse) has had contact with a fuse socket. Find out what types of fuse sockets there are and which fuse socket to choose for your electrical installation.
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What types of fuse sockets are there?
Fuse sockets (also known as fuse bases ) used in home and industrial electrical installations differ in terms of parameters such as:
- size,
- number of poles,
- construction material,
- rated voltage,
- rated current,
- method/place of installation,
- presence of a cover.
The fuse socket design is typically made of porcelain with excellent insulating properties and high resistance to mechanical damage. Manufacturers use plastic less often.
Sockets differ in size. Most fuse sockets are designed to work with D-type fuses (see e.g. D-type fuse socket ) and small-sized D0-type fuses. In our wholesaler you will also find products dedicated to low-voltage NH fuses, such as NH fuse base . The NH symbol denotes low-voltage fuses with high short-circuit interruption capacity. Their short-circuit capacity often exceeds 100 kA, so they are used in practically all low-voltage networks.
The popular division of fuse sockets concerns the method and place of installation. In this respect, 3 basic types of fuse sockets can be distinguished.
- Rail fuse sockets (also known as DIN rail) - designed for switchboards with modular equipment. They facilitate the adjustment of elements and the introduction of changes. Individual models are compatible with specific types of rails. DIN mounting rails are an increasingly common solution in modern installations.
- Surface-mounted fuse sockets (also known as panel-mounted) – designed for surface mounting, marked with the letters NT or N/T. Due to the method of use, they require appropriate protection in the form of a closed housing.
- Panel-mounted fuse sockets (also known as behind-the-panel fuse sockets) - found mainly in old installations.
Finally, it is worth mentioning the role of the cover. The cover protects the fuse from mechanical damage and the user from accidentally touching live parts.
How to choose the right fuse socket?
The fuse base parameters must meet the requirements of a specific installation - domestic or industrial, because they differ significantly in terms of power and loads. It should be remembered that the fuse base is only a part of the entire set, briefly called a "fuse". When choosing a fuse base, you must take into account the parameters of the fuse insert (fuse insert), fuse carrier (fuse head), caliber insert and any covers. Carefully check the technical data of each product!
Fuse sockets at the Onninen wholesaler
In the Onninen electrical wholesaler , you will find various types of fuse sockets for use in both home and industrial installations. An important part of our offer is also D and NH fuse switch disconnectors. In the assortment you will find, among others, the popular 63a fuse switch disconnector or 25a fuse switch disconnector , as well as a wide range of fuse accessories. We supply only high-quality, certified products from renowned manufacturers, e.g. Eaton fuse switch disconnector .