... base,short terminal cover 3.IEC62053-21 DD862 single phase mechanical power meteris a kind of induction ... fire-retardant, high temperature molded. ♦May select use 5+1 digits register or 5 digit register or ... types wiring optional, standard or special one;♦Single component measures single-phase two-wire active energy consumption,Complying ... (12), 5(20), 5(30), 10(40), 15(60), 20(80), 30(100)400%Ib0.5%IbAC ...