0326004.H

A fuse is a safety element in electrical and electronic circuits. It is designed to interrupt the current flow in the event of an overload or short circuit. The 0326004.H series fuses is a comparative novel type of current-limiting fuse that provides robust current-limiting protection, low I²t, and excellent reliability in the traction industry. This type of fuse offers diverse protection in general electrical power distribution systems.

The 0326004.H series fuses are used mainly in traction sector. Its unique feature of low-let-through current allows for the protection of traction systems that employ inverters. It is designed to protect large converters and inverters in applications such as railway systems, electric vehicles, industrial control and power systems, as well home appliances and servers.

When the current passing through the fuse is higher than the rated current, the fuse element heats up and then melts due to the Joule heating effect. As the fuse element melts, a space is created, dividing the fuse element into two parts, and the electric current is interrupted. The 0326004.H series fuses are high breaking capacity fuses that are rated for currents of up to 100 A and 200 A. Different sizes of fuse element allow for protection of large currents and even higher pulse current, which is more difficult to protect with conventional fuses. In addition, the size of the fuse element allows for a low let-through current, which is very important for the protection of semiconductor power devices, such as IGBTs, thyristors, and MOSFETs.