DynaShield® ADSx series hardwired AC surge protection devices (SPDs) are fast responding devices designed to offer superior voltage protection levels at high surge currents. The SPDs are Listed to UL / cUL 1449 4th Edition Type 1 and Type 2 and are offered with surge current ratings of 50 kA, 100 kA, 200 kA and 300 kA to meet the most demanding protection requirements. These SPDs meet UL96A Lightning Protection Master Label requirements (@ 20 kAIn).