①. Sequential opening and reverse order closing
②.PASS button can open all channels at the same time
③. Precise mechanical voltage display. (large screen pointer voltmeter)
④.With external control switch interface
⑤. Support panel to control each channel independently. Panel channels are closed independently
⑥. Interval time/timing time of each switch: 1 second
⑦.Support stacking machine cascade
⑧. Six stable protections: overvoltage protection, overheating protection, overdischarge protection, short circuit protection, voltage regulation protection, overcurrent protection (40A)
⑨. Optional power purification function (EMI professional grid filter)