... opening and closing.Specification1,Operating valve ,380V 50Hz, three phase four wire system.2,Control power, BFA-1 1 ... the power led is lit, live remote control switch point to the remote control, remote control indicator lights .4,Hand wheel ... key, cut off the three-phase power supply, change any of the three-phase power supply two phase. 5,Press the off ... fuse 5×20,1A 220 V Electric controlling valve