div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imagea href=https:reader042vdocumentssitereader042viewer20220405135e675c95cf561c2b03681727html5page1jpg target=_blank img data-url=-rel-di-minima-tensione-continua-undervoltage-relay-rel-di-frequenza-frequencyhtmlpage=1 data-page=1 class=ts-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:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentssitereader042viewer20220405135e675c95cf561c2b03681727html5thumbnails1jpg width=140 height=200 adivdiv