... discharge current Imax(kA)design No.surge protective device2.2 Specifications:2.2.1 According to current classification:Imax 15 ,25 ... ,10 ,20 ,30, 40,50, 60 ,70kA2.2.2 According to maxi continuous working voltage Uc:65,180V-,150 ... line, L1,L2,L3..-N-PE, “2+1”, “3+1”2.2.6 Detailed specifications (see table 1)2.3 Base unit composite ... 0.5,0.8 ,1.5 ,1.8,2.0 ,2.2,2.5kV·Maxi discharge current(8/20µs) Imax 15 ...