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Arc Flash Detection

Littelfuse arc-flash relays provide superior protection against the damaging effects of arc flashes. These market-leading, arc-flash relays deliver reliable, easy-to-install protection with plug-and-play functionality, making them as easy to retrofit into existing switchgear as installing them into new equipment. Arc-flash relays are an integral part of an arc-flash protection system that can minimize damage, and save money, time, and lives. The Littelfuse arc-flash relays improve sustainability and the life of electrical equipment.

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Arc Flash Detection Information Center

Arc-flash events are dangerous and potentially fatal to personnel. Arcing and arc-flashes occur when electricity flows across what is normally an insulating medium, producing intense, luminous discharges of electrical energy. Arc-flash detection technology allows circuit-protection devices to operate rapidly to reduce the energy of an arc flash, where most current-detection devices would respond slowly or potentially not at all.