1,be used in the circuit of AC50/60Hz , 2,rated voltage 220/380V. 3,suited for 10KA,20KA,30KA,40KA,60KA,80KA,100KA...... Chtent 2P Series Surge Protective Device(suited for 10KA,20KA,30KA,40KA,60KA,80KA,100KA......) Specification: WLDM 2P surge protective device SPD with rated working volrtage AC 50/60HZ, 220/380VApplication WLDM surge protective device can be used in the circuit of AC50/60Hz , ...