| Fuse Technology
Current limitation The energy let through of the protective device determines the necessary strength of the protected installation and components. A fuse interrupts a short circuit current very quickly. Consequently the energy let through (I2t) of a fuse is very low. A fuse 100A, 20kArms, 415V reduces an initial fault current of 4.000.000 A/S2 to 46.000 A/S2 This ratio is indicated in the picture below. An example: The volume illustrates the impact of the limitation feature of a fuse. The benefit is that smaller components can be used downstream of the fuse resulting in... COMPACT INSTALLATIONS
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