(3TF)CXC4-F AC contactor applies to supply of AC 50/60Hz, rated voltage up to 660V. In AC 3 use, under voltage of 380V, the rated current can be up to 630A. CXC4-F and CXR4 overload relay can form motor starter to protect the motors against overload and phase failure. The product is tested according to IEC 60947-4.

The contactor features double breaking contacts. Arc distinguish chambers are used to quench the arc in contactors of 32A and above. The contactors below 32A can be mounted on DIN rail or by screw, the bigger ones can only be mounted by screw.