MYN varistors nonlinear coefficient , large flow capacity , fast response time , multi-functional characteristics. Mainly for communications , measurement and control instrumentation over-voltage surge protection , power supply operation over-voltage protection , over-voltage surge protection for railway signaling . The nominal voltage 1.0KV ~ 56KV, flow capacity (8 / 20μs) 5KA ~ 60KA, product diameter 40 ~ 110mm, height of 45 ~ 320mm.