... DC to AC,DC to DC,AC to AC. 2.Voltage:240V/480V/660V 3.Current 10-120A 1P/3P Solid State Relay 1.AC to DC,DC to DC,AC ... to AC ... -control system We aslo supply: * AC and DC Solid State Relays single phase, 3 ... 90~280Vac,18-36VAC Control) * Zero,Random,Analog switching all available * UL, CUL, CE ...