AC power SPD is mainly applicable to the power distribution systems for Class I / II / III( Type1, type 2, type3) protection. Surge arresters for AC line units can protect electrical equipment from the impact of lightning electromagnetic pulse, induced over-voltage, transient operation, and resonance(＜100μs) overvoltage. Common AC surge protection devices (SPD) are single-phase or three-phase, 4 poles or multi-pole, with slightly different ac spd prices.

Type 1/ Class B Lightning Surge Protection for AC Power Systems

AC SPD single phase series power supply system AC module are mainly applicable to power distribution system for class I / type 1 protection.

Type1+2/ Class B+C SPD MA25 series

These series products are 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 (