div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imagea href=https:reader042fdocumenticomreader042viewer20220405135e675c95cf561c2b03681727html5page1jpg target=_blank img data-url=document-rel-di-minima-tensione-continua-undervoltage-relay-rel-di-frequenza-frequencyhtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: Relè di minima tensione continua undervoltage relay Relè di frequenza frequency relay Relè di selezione o commutazione automatica automatic selective control or transfer relay loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader042fdocumenticomreader042viewer20220405135e675c95cf561c2b03681727html5thumbnails1jpg width=140 height=200 adivdiv