Data line protectors designed for RS-232, RS-422 and RS-484 applications. Multi stage, solid state design makes it multi-strike capable. Surge rated to BELLCORE 1089,10/1000 @ 100a. UL479B listed. Handles wire sizes from 16 to 28 AWG. Does not accommodate battery or ringing voltage. Flange mount style for mounting on or near equipment. RoHS Compliant.