It reliably detects developing Arc-Flash incidents by looking for a combination of excess light and current and offers programmable definite-time overcurrent protection and adjustable light trip-level to minimize nuisance tripping.
Minimize Arc Flash Damage with the Littelfuse POWR-GARD Arc Flash Relay (PGR-8800)
The Littelfuse POWR-GARD Arc-Flash Relay (PGR-8800) protects electrical systems by detecting arc flash incidents early and economically. Used in general industrial facilities, the PGR-8800 is an easy-to-install, stand-alone product with up to 24 light sensors, including optional fiber-optic cable sensors that can protect difficult-to-reach compartments.