MA25S series products are the upgraded version of MA25 series, using own designed gap technology, with more excellent parameters, mainly used for Type 1+Type 2 protection of power distribution systems (10 / 350µs), and are used to protect electrical and electronic equipment from the damage of lightning electromagnetic pulse induced voltage, operating transients and resonance (<100µs) overvoltage, it widely used in power supply protection in communication equipment, electrical, electrical appliances, power equipment, CCTV, transportation, industrial control, aviation and other fields.