1. power protection 2. lightning protection 3. TLC-3 4.With a load overcurrent,overheating separation ... .ISO Performance1.high quality steel , flame retardant, anticorrosive2.lightning protection unit is KLY products, modular design, convenient testing and replacement3 ... 50HZ3. Nominal discharge current :60KA4.Maximum discharge current :120KA5.Voltage protection level :2.5kv power lightning protection