5HF 200-R

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Fuses consist of a current-carrying wire or strip placed inside a casing. When the current passing through them surpasses the rated current value at which the fuse is rated for, the wire or strip withstands the heat and melts, disconnecting the circuit. 5HF 200-R is a type of high breaking capacity fuse which is used in a vast variety of applications.

Applications

5HF 200-R fuses are designed for systems with a rated voltage of up to 1000V. Distribution networks, lighting, industrial plants, household appliances, automotive circuits, line protection of wind and solar photovoltaic systems and power sources are among its typical applications.

Working Principle

The main function of the 5HF 200-R fuse is to protect the system or installation from overloads and short circuits. When an area within the system experiences an increase in current beyond the rated limit of the fuse, the fuse will melt so as to disconnect the electrical current running across the system, thereby preventing any damage to the system or its components.

The 5HF 200-R fuse comprises of a few extremely crucial components: a casing, heat-insulating video, current-carrying link, supported arc-quenching body, airtight joint, space for the arc and exhaust, and non-inflaming rolling film covering the arc. In the event of overcurrent, the current-carrying link melts and creates an arc, which is stored between the arc-quenching body. A shielding gas is produced as a result of this arc and the non-inflaming rolling film aids in cutting off the arc and dissipating heat.

Additionally, the airtight joint and arc isolation space help in protecting the fuse’s mounted casing from excessive heat. This heat-insulating video distributes the temperature and the gas releasing into the exhausted hole. As the gas hole is airtight, there is very little risk of accidental fire. Taking all these factors into consideration, it is safe to say that the 5HF 200-R fuse has been designed to offer better safety measures and astonishing performance.

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