1.Name:DB1 Changeover Switch . 2.Current :16, 25, 32, 40, 63 or 100A 3.Approval: UL , ISO9001 4.Voltage: 230 to 690V ... AC. Specifications1.Name:DB1 Changeover Switch 2.Current :16, 25, 32, 40, 63 or 100A 3.Approval: UL , ISO90014.Voltage: 230 ... )Can be used to start, stop, forward or backward directly three phase asynchronous motor.2)Can be used to changeover from one ...