... push button is suitable for circuit of AC.50 or 60HZ, rated voltage to 500V, rated current up to 5A. 1.COB push button ... is suitable for circuit of AC.50 or 60HZ, rated voltage to ... rated current up to 5A as controlling start and stop of remote and widely used inwharf, machine tools, textile machineries ... series:2 lines,4 lines and 6 lines. push button switch