0215.400H Application Field and Working Principle

0215.400H is a type of fuse frequently used in electronic equipment, also known as “sub-miniature fuse”. It is mainly used to protect the electric equipment from overload, short circuit, overheat, and other malfunctions. In the field of electronic equipment, 0215.400H is widely seen in computers, radios, televisions, home appliances, and so on.

The working principle of the 0215.400H fuse is fairly simple. The fuse is connected in series to the electric circuit, so it can catch the current generated upon an overload or short circuit and break the circuit. The fuse is composed of two conductive caps and a fuse link. The fuse link is made from a special alloy with a certain electrical resistance. It acts as a switching control when the current is too high. Under normal operation, the fuse link is intact and allows electric current to pass through. When the current exceeds the rated value of the fuse, the fuse link will be instantaneously broken, thereby protecting the electric circuit from an overload.

Similar to other fuses, 0215.400H has two ratings – one is the current rating (expressed in amperes), while the other is the breaking capacity or interrupt rating (specified with A.V. at VDC). The current rating is the maximum normal operating current – in other words, the maximum value of current allowed to pass through without the interruption of the circuit, while the breaking capacity indicates how much current the fuse can break in case of an overload. It usually ranges from 100A to 1,000A at different voltages. The voltage rating of 0215.400H is usually 250V to 600V.

There is a wide variety of 0215.400H fuses depending on their application requirements. All of them have two features in common – special form and high breaking capacity. The form ensures an appropriate deviation of the existing air gap of a related switch, while the breaking capacity indicates the security of the circuit. In order to ensure the safety, both features should be checked closely before making a purchase.

To sum up, 0215.400H is a widely used type of fuse, with two common ratings – current rating and breaking capacity. Its application fields include electronic equipment, computers, radios, televisions, and home appliances. The working principle of the 0215.400H fuse is to protect the electric circuit from overload, short circuit, and overheat. The form ensures the appropriate deviation of the existing air gap, and the breaking capacity indicates the security of the circuit.