Integral disconnect switch with protective lockout feature allows servicing of the surge panel without having to open the load center being protected * 7-mode protection (each phase to neutral, each phase to ground and neutral to ground) for WYE-configured 3-phase AC systems * Highest UL Nominal Discharge Current Rating: 20kA per UL 1449 3rd Edition * Limited Lifetime Product Warranty * Free replacement modules-Certain restrictions apply