Surge Protector Surge Protection Device Function Surge protective device is also know as surge protector or SPD in short. Technical Parameter Model nameEBS1U-40StandardIEC61643-11Poles1P, 2P, 3P, 4PMax. continuous operation AC voltage Uc140, 275, 320, 385, 400, 420, 440VRated release current5, 10, 15, 20, kASystem voltage Un230/400V AC 50/60HzNorminal discharge current (8/20μs) In20kAMaximum discharge current (8/20μs) Imax40kAVoltage protection level (L-N) Up1.5kVResponse time (L-N) tA25nsMounting36mm Standard GuideCross section of wire (Min.)4mm2Cross section of wire (Max.)35mm2Casing materialThermoplastic UL94-V0Dimension (L*W*H)90*70*54mm