... 2)The manufacturer electrical motor magnetic thermal ac contactor series 3)Different type It has function of no voltage ... .3 Operating frequency(time/h)AC-3600400300 AC CONTACTOR SERIES: LC1-D, LC1-DN, LC2-D, LC1-F, LC2-F, 3TF, 3TH, 3TB, 3TD ... , LA2-D, AEG, CA2-DN, CA3-DN, SMC, S-P, LC1-K, LC1-E, 3TK44, LC1-DK.