ESP240/III/TNS *Replaced with ESP240T1/12.5/TNS*ESP240/III/TNS Surge Protective DeviceFeatures & BenefitsEnhanced protection (to BS EN 62305) offering low let-through voltage further minimizing the risk of flashover creating dangerous sparking or electric shockRepeated protection in lightning intense environmentsCompact, space saving designThe varistor based design eliminates the high follow current (If) associated with spark gap based surge protectionThe indicator shows when the protector requires replacementRemote signal contact can indicate the protector?s status through interfacing with a building management system