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Reduce Arc Flash Energies by Upgrading to A6D Class RK1-Fuses
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From Ferraz Shawmut
Arc flash incident energies can often be significantly reduced by simply replacing UL Class RK5, Class K, and Class H fuses with A6D UL Class RK1 fuses. This is an easy and inexpensive solu¬tion, since the A6D fuses fits into the same fuse holders. Please note that Class H fuses are not current limiting and have a very low interrupting rating. If there are any of these left in your system you should plan to retire these as soon as safely possible. Upgrading to A6D Class RK1 fuses can reduce arc flash energies because these fuses have lower let-through energies in their current limiting range and lower current limiting thresholds. Products & Services
Fuses protect electrical devices and components from overcurrents and short circuits that occur in improperly operating circuits.
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Fuse holders are devices for containing, protecting and mounting fuses. Blown fuses can be changed quickly and easily when used in conjunction with a fuse holder.
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Specialty electrical distribution and protection products are specialty or proprietary products related to electrical distribution and circuit protection.
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Topics of Interest
Current limiting fuses can reduce both the magnitude and duration of a fault current. A UL Listed, current limiting fuse must clear a short circuit current in less than one half cycle in its current...
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The arc flash hazard calculation method proposed in IEEE 1584 is based on tests with the arcing electrodes in a vertical plane and the calorimeters arranged at 90° to this plane. In this paper the...
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