Phihong have added the new specification that now meets 4kV L-L and 4kV L-PE Surge; 6kV Output Surge, requirements in 30 watt, 60 watt and 90 watt POE Injector ranges. The new models POE30U-ATA5660-R, POE60U-BTAX660-R and POE90U-BTAX460-R available soon