Littelfuse's PGR-8800 Arc-Flash Relay can detect two different conditions related to an arc flash

Littelfuse has expanded its Powr-Gard protection-relay line with the addition of Arc-Flash Relay (PGR-8800). The PGR-8800 is a stand-alone product with up to 24 light sensors, including optional fiber-optic cable sensors.

The Littelfuse Arc-Flash Relay is designed to detect two different conditions related to an arc flash: excessive current and light. By detecting light combined with high current, the Littelfuse Arc-Flash Relay can distinguish an arc flash from unrelated current and ambient light fluctuations.  

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