1.QA17 2.QA17 Earth leakage Circuit Breaker( ELCB) 3.QA17 CBI 4.Current: 15 20 30 40 50 63 5.QA17 HYMAG SA AF QA QF and DIN Ranges 1. Special Earth Leakage Protection DevicesEarth Leakage protection Devices Abbreviation CodesAll Products manufactured by CBI to meet special non-standard requirements of customers Suffix A Earth leakage protection device with overload. Single pole and Neutral / 3 ...