● Main use: single and three-phase AC power supply lightning protection box is suitable for B, C, D level overvoltage protection, mainly installed in indoor low-voltage distribution cabinet (box), when the power supply line generates operating overvoltage or lightning strike overvoltage, the lightning protection box can immediately be quickly turned on in nanoseconds, limit the amplitude of the overvoltage to the safe working range of the equipment, and at the same time discharge the energy of the overvoltage into the ground. ● Customized or not: OEM is accepted, can be customized according to customer requirements.