1.explosion-proof 2.Small size, nice shape, light and sturdy 3.Counting function,can count the number and strength of the li Usage:Using for the frond-end protection of the electricity system, install among the LPZ0, LPZ1, and LPZ2 surfaces, it can bleed part of the energy, and limit the overvoltage in a certain range.Technology Parameter: Model SY-B-120KA4PBCSY-B-100KA2PBCSY-B-80KA4PBCSY-B- ...