A.DC(20~27V) B.DC(36~72V) C.DC(77~137.5V) D.DC(500~660V)
A.DC500V~DC660V B.DC550V~DC660V C.DC500V~DC750V D.DC550V~DC750V
A.(1±5%)V B.(1±10%)V C.(1±15%)V D.(1±20%)V