... PurposeMining Explosion-proof Intrinsically safe with multi-loop vacuum electromagnetic quick plug-in type combination starter ,QJZ1-2000/1140(660)-9 ... 127V(220V).Technical Data TypeQJZ1-2000/1140,660-8,9,10,11,12StructureContactor: the control box is type of drawerRated ... max current(A)400Working frequency(Hz)50Number of loops8,9,10,11,12 loopsContactor capacity (A)400Combination modesEach loop can ...