850/855

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Fuseholders

Fuseholders, also known as fuse blocks or fuse clips, are electrical components that are used to facilitate the insertion and removal of electrical fuses to protect circuits from overloads. Fuses are also important components since they provide circuit protection and prevent damage to wires or equipment due to excessive current flow. The two most common types of fuseholders are the 850/855 application field and the working principle.

The 850/855 Application Field

The 850/855 application field is specifically designed for AC plug-in fuses and utilizes the industry\'s readily available plug-in and screw type fuse clips. This style of fuseholder provides ultimate user convenience and explosion proof capability. Since the fuses are plug-in, the 850/855 fused disconnects can be set up with either standard type fuses or open type fuses depending upon the type of application. When using plug-in style clips, the wires must be connected to the clips before inserting the fuse.

Working Principle

The working principle of the fuseholder involves a simple version of Ohm’s law. It states that the current through a conductor between two points is directly proportional to the applied voltage and inversely proportional to the resistance between those two points. In the case of a fuseholder, the fuse acts as the resistance. When the fuse is properly rated, the current will be allowed to pass without blowing the fuse. If the current exceeds the rating of the fuse, the fuse will blow and immediately cut off current to the circuit.

Conclusion

Fuseholders designed for the 850/855 application field have become increasingly popular due to their versatility and convenience. They are usually used in conjunction with fuses that are rated in amperes, and the fuseholder is rated for a certain amount of current. By understanding the working principle of a fuseholder, it is possible to determine if they will be able to provide effective protection against electrical overloads in a given application.

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