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https://www.techwinspd.com/products/ac-power-spd/

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 (<100µs) overvoltage.

Type1+2/ Class B+C SPD MA25S series
As switch-type SPD technology advances, the follow current interruption capability (Ifi) is improving too. Our company uses gap technology to enhance the performance of our switch-type SPD and has developed the MA25 and MA25S series products with outstanding follow current interruption capability.

Type 2/Class C protection DIN-rail Pluggable AC surge protector
Type 2 AC power supply system AC module is mainly applicable to the power distribution system for class C/type 2 protection, to protect electrical equipment from the impact of lightning electromagnetic pulse, induced over-voltage, transit operation, and resonance (less than 100 μs) overvoltage.

If you want to know more details of spd type 1 2 3, please visit our website.

As a surge protector supplier, we can offer sorts of signal surge protector for sale, anything you need, please leave us a message.