LC1-K series AC Contactor is suitable for using in the circuit rated voltage up to 660VAC 50Hz or 60Hz, rated current up to 12A in AC-3 using category, for making & breaking, frequently starting & controlling the AC motor. Combine with the auxiliary contact block, time delay & machine-interlocking device etc, it becomes the delay contactor, mechanical interlocking contactor, star-delta starter. With the thermal relay, it is combined into the electromagnetic starter. The contactor is produced according to IEC 60947-4.