... -delta starter.With CE ,UL. The specification of Thermal overload relay ( overload relay, over-load relay,thermal relay,power relay,lrd thermal relay,lrd)as following:1.Rated insulation voltage:660VMax ... in Table 1;8.Electrical endurance:underA.C.15 D.C.13 Will be 106;9.Mechanical endurance:1.5× ... .The combiation form of contacts as Table 2,DC-13 Thermal overload relay