LY2-C(SPD) 1.For TN-S, TN-C-S,TT,IT etc. power supply system 2. ... leak current, response quickly, less residual voltage;4.Signal indication device, green(normal), red(abnormal);5.Highly energy, clearance ... PE). Application Scope and Installation PositionLY2-C series surge protective device according to GB18802.1-2002, installed on the ... near the control equipment.Outside Size Fig Surge Protective Device