3TF series AC contactors are suitable for frequency of 50/60Hz, rated insulation voltage up to 690-1000V, rated operational current up to 9-400A at rated operational voltage up to 380v under the utilization category AC-3. 3TF series AC contactors are mainly used for making/breaking electric circuits at a long distance and for frequent starting/stopping and reversing control of AC motors. They comply IEC947, VDE0660, and GB14048
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