C120 series AC contactor is mainly used in the electric power circuits with the frequency of AC 50Hz (or 60Hz), the rated working voltage of up to 690V (or 1140V) and the rated working current of up to 1000A for connecting and breaking circuits, and working with the appropriate thermal relay or electronic protection device to form the motor starter to protect the circuits that may be overloaded.
Executive standards:GB14048.4 and1EC60947-4-1.etc.