If you are checking best, high-quality, discount, or arresters brands, 

please feel free to contact Xi'an Hoan Microwave Co.,Ltd, we are one of

the best China surge protector, surge arrester, lightning protection manufacturers and suppliers.

he surge arrester can effectively protect the communication equipment.

Once there is no normal voltage, the surge arrester will operate at the

normal operating voltage. When the cable or equipment is operated under 

normal operating voltage, the surge arrester will act as high voltage, 

which can limit the voltage amplitude, protect the communication cable and equipment.

http://www.hoaninc.com