... sine wave output 3.Excellent load feature 4.Perfect protection HT-HM series(3/3) Low Frequency Online UpsBrief introductionHT-HM ... in the world, it is really the first-class product. HT-HM series UPS be widely applied to the telecommunication, bank ... ×750×1080480×895×1200980×800×18001380×950×18001600×1150×1800 HT HM Series Low frequency Online Ups 3/3 Phase In ...