DZL18-20 Series Leakage circuit breaker: 1.CCC,CE ISO9001appliant; 2. Leakage circuit breaker; 3.Rated voltage:220V. DZL18-20 Series Leakage circuit breaker:1.CCC,CE appliant;2.Products overview:·DZL18-20 series leakage circuit breaker is a current movement and electrical type rapid circuit breaker.It's made of zero sequence current mutual inductor,electrical amplification component,leakage ...