Application CJX1(3TF) series AC contactors are suitable in electrical system with AC 50/60Hz, rated operational voltage up to 660V. In AC-3 usage, rated operational voltage up to 380V, rated operational current up to 630A to make or break remote motors or system. They form electromagnetic starters with suitable thermal overload relays JRS2(3UA) series to protect system and motors against overload or phase-failure. They are made according to IEC947, BS5424 & VDE0660.