{"id":7172,"date":"2024-03-15T01:33:36","date_gmt":"2024-03-15T00:33:36","guid":{"rendered":"https:\/\/www.kfactor.it\/kfactor\/en\/?post_type=product&#038;p=7172"},"modified":"2026-08-05T16:56:34","modified_gmt":"2026-08-05T14:56:34","slug":"varf-1n-single-phase-variable-transformers-open-type-from-4a-to-60a-0250v","status":"publish","type":"product","link":"https:\/\/www.kfactor.it\/en\/shop\/variable-transformers\/varf-1n-single-phase-variable-transformers-open-type-from-4a-to-60a-0250v\/","title":{"rendered":"VARF-1N &#8211; SINGLE PHASE VARIABLE TRANSFORMERS, OPEN TYPE from 4A to 60A 0:250V"},"content":{"rendered":"<h3>SINGLE PHASE VARIABLE TRANSFORMERS, OPEN TYPE from 4A to 60A 0:250V<\/h3>\n<table width=\"650\">\n<tbody>\n<tr>\n<td width=\"388\">Input voltage: 230Vac<br \/>\nAdjustable output voltage: 0 : 250Vac<br \/>\nOpen type,\u00a0panel mounting<br \/>\nIP00 grade of protection<br \/>\nIsolation class\u00a0E (AT max 45\u00b0C)<br \/>\nSingle winding with intermediate taps on request<br \/>\nResin impregnated and tropicalized<br \/>\nKnob and dial available on request<br \/>\nCustom executions: motorized model, closed type, stabilized output<br \/>\n<a href=\"\/?product_cat=varf-3n-three-phase-open-type-variable-transformers-from-4a-to-60a-0435v\">THREE PHASE MODEL AVAILABLE<\/a><\/td>\n<td width=\"256\">\u00a0<a href=\"https:\/\/www.kfactor.it\/wp-content\/uploads\/2016\/03\/sch-varf1-n.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-4685 size-full\" title=\"scheme of single phase variable transformer\" src=\"https:\/\/www.kfactor.it\/wp-content\/uploads\/2016\/03\/sch-varf1-n.png\" alt=\"scheme of single phase variable transformer\" width=\"279\" height=\"76\" \/><\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<table width=\"650\">\n<tbody>\n<tr>\n<td>\u00a0<a href=\"https:\/\/www.kfactor.it\/wp-content\/uploads\/2016\/03\/dis-varf1-n1.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-4680 size-medium\" title=\"drawing of variable transformer, single phase, open type\" src=\"https:\/\/www.kfactor.it\/wp-content\/uploads\/2016\/03\/dis-varf1-n1-300x122.gif\" alt=\"drawing of variable transformer, single phase, open type\" width=\"300\" height=\"122\" \/><\/a><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-8273\" src=\"https:\/\/www.kfactor.it\/wp-content\/uploads\/2020\/02\/ft-var02-10f-1n.jpg\" alt=\"single phase variable transformer\" width=\"157\" height=\"157\" srcset=\"https:\/\/www.kfactor.it\/wp-content\/uploads\/2020\/02\/ft-var02-10f-1n.jpg 284w, https:\/\/www.kfactor.it\/wp-content\/uploads\/2020\/02\/ft-var02-10f-1n-100x100.jpg 100w, https:\/\/www.kfactor.it\/wp-content\/uploads\/2020\/02\/ft-var02-10f-1n-130x130.jpg 130w, https:\/\/www.kfactor.it\/wp-content\/uploads\/2020\/02\/ft-var02-10f-1n-150x150.jpg 150w, https:\/\/www.kfactor.it\/wp-content\/uploads\/2020\/02\/ft-var02-10f-1n-640x640.jpg 640w, https:\/\/www.kfactor.it\/wp-content\/uploads\/2020\/02\/ft-var02-10f-1n-600x600.jpg 600w\" sizes=\"auto, (max-width: 157px) 100vw, 157px\" \/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table style=\"width: 78.7569%; height: 144px;\" width=\"650\">\n<tbody>\n<tr style=\"height: 24px;\">\n<td style=\"text-align: center; height: 24px;\">current<\/td>\n<td style=\"text-align: center; height: 48px;\" rowspan=\"2\">part no.<\/td>\n<td style=\"text-align: center; height: 24px;\" colspan=\"5\">dimensions mm.<\/td>\n<td style=\"text-align: center; height: 24px;\">weight<\/td>\n<td style=\"text-align: center; height: 24px;\">MAX<\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"text-align: center; height: 24px;\">A<\/td>\n<td style=\"text-align: center; height: 24px;\">A<\/td>\n<td style=\"text-align: center; height: 24px;\">B<\/td>\n<td style=\"text-align: center; height: 24px;\">C<\/td>\n<td style=\"text-align: center; height: 24px;\">D<\/td>\n<td style=\"text-align: center; height: 24px;\">E<\/td>\n<td style=\"text-align: center; height: 24px;\">kg.<\/td>\n<td style=\"text-align: center; height: 24px;\">kVA<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">2<\/td>\n<td style=\"text-align: center;\">VAR02F-1N<\/td>\n<td style=\"text-align: center;\">140<\/td>\n<td style=\"text-align: center;\">110<\/td>\n<td style=\"text-align: center;\">40<\/td>\n<td style=\"text-align: center;\">10<\/td>\n<td style=\"text-align: center;\">30<\/td>\n<td style=\"text-align: center;\">5<\/td>\n<td style=\"text-align: center;\">0.5<\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"text-align: center; height: 24px;\">4<\/td>\n<td style=\"text-align: center; height: 24px;\">VAR04F-1N<\/td>\n<td style=\"text-align: center; height: 24px;\">150<\/td>\n<td style=\"text-align: center; height: 24px;\">155<\/td>\n<td style=\"text-align: center; height: 24px;\">50<\/td>\n<td style=\"text-align: center; height: 24px;\">10<\/td>\n<td style=\"text-align: center; height: 24px;\">30<\/td>\n<td style=\"text-align: center; height: 24px;\">8<\/td>\n<td style=\"text-align: center; height: 24px;\">1.0<\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"text-align: center; height: 24px;\">6<\/td>\n<td style=\"text-align: center; height: 24px;\">VAR06F-1N<\/td>\n<td style=\"text-align: center; height: 24px;\">155<\/td>\n<td style=\"text-align: center; height: 24px;\">185<\/td>\n<td style=\"text-align: center; height: 24px;\">50<\/td>\n<td style=\"text-align: center; height: 24px;\">10<\/td>\n<td style=\"text-align: center; height: 24px;\">30<\/td>\n<td style=\"text-align: center; height: 24px;\">11<\/td>\n<td style=\"text-align: center; height: 24px;\">1.5<\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"text-align: center; height: 24px;\">8<\/td>\n<td style=\"text-align: center; height: 24px;\">VAR08F-1N<\/td>\n<td style=\"text-align: center; height: 24px;\">155<\/td>\n<td style=\"text-align: center; height: 24px;\">186<\/td>\n<td style=\"text-align: center; height: 24px;\">50<\/td>\n<td style=\"text-align: center; height: 24px;\">10<\/td>\n<td style=\"text-align: center; height: 24px;\">30<\/td>\n<td style=\"text-align: center; height: 24px;\">12<\/td>\n<td style=\"text-align: center; height: 24px;\">2.0<\/td>\n<\/tr>\n<tr style=\"height: 24px;\">\n<td style=\"text-align: center; height: 24px;\">10<\/td>\n<td style=\"text-align: center; height: 24px;\">VAR10F-1N<\/td>\n<td style=\"text-align: center; height: 24px;\">160<\/td>\n<td style=\"text-align: center; height: 24px;\">190<\/td>\n<td style=\"text-align: center; height: 24px;\">50<\/td>\n<td style=\"text-align: center; height: 24px;\">10<\/td>\n<td style=\"text-align: center; height: 24px;\">30<\/td>\n<td style=\"text-align: center; height: 24px;\">15<\/td>\n<td style=\"text-align: center; height: 24px;\">2.5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<table width=\"650\">\n<tbody>\n<tr>\n<td>\u00a0<a href=\"https:\/\/www.kfactor.it\/wp-content\/uploads\/2016\/03\/dis-varf1-n2.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-4681 size-medium\" title=\"drawing of variable transformer, single phase, open type\" src=\"https:\/\/www.kfactor.it\/wp-content\/uploads\/2016\/03\/dis-varf1-n2-300x150.gif\" alt=\"drawing of variable transformer, single phase, open type\" width=\"300\" height=\"150\" \/><\/a><\/td>\n<td style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-8271\" title=\"single phase variable transformer\" src=\"https:\/\/www.kfactor.it\/wp-content\/uploads\/2020\/02\/ft-var14-20f-1n.jpg\" alt=\"single phase variable transformer\" width=\"175\" height=\"175\" srcset=\"https:\/\/www.kfactor.it\/wp-content\/uploads\/2020\/02\/ft-var14-20f-1n.jpg 283w, https:\/\/www.kfactor.it\/wp-content\/uploads\/2020\/02\/ft-var14-20f-1n-100x100.jpg 100w, https:\/\/www.kfactor.it\/wp-content\/uploads\/2020\/02\/ft-var14-20f-1n-130x130.jpg 130w, https:\/\/www.kfactor.it\/wp-content\/uploads\/2020\/02\/ft-var14-20f-1n-150x150.jpg 150w\" sizes=\"auto, (max-width: 175px) 100vw, 175px\" \/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table width=\"650\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\">current<\/td>\n<td style=\"text-align: center;\" rowspan=\"2\">part no.<\/td>\n<td style=\"text-align: center;\" colspan=\"7\">dimensions mm.<\/td>\n<td style=\"text-align: center;\">weight<\/td>\n<td style=\"text-align: center;\">MAX<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">A<\/td>\n<td style=\"text-align: center;\">A<\/td>\n<td style=\"text-align: center;\">B<\/td>\n<td style=\"text-align: center;\">C<\/td>\n<td style=\"text-align: center;\">D<\/td>\n<td style=\"text-align: center;\">E<\/td>\n<td style=\"text-align: center;\">F<\/td>\n<td style=\"text-align: center;\">G<\/td>\n<td style=\"text-align: center;\">kg.<\/td>\n<td style=\"text-align: center;\">kVA<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">14<\/td>\n<td style=\"text-align: center;\">VAR14F-1N<\/td>\n<td style=\"text-align: center;\">160<\/td>\n<td style=\"text-align: center;\">190<\/td>\n<td style=\"text-align: center;\">84<\/td>\n<td style=\"text-align: center;\">10<\/td>\n<td style=\"text-align: center;\">30<\/td>\n<td style=\"text-align: center;\">116<\/td>\n<td style=\"text-align: center;\">M6<\/td>\n<td style=\"text-align: center;\">18<\/td>\n<td style=\"text-align: center;\">3.5<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">18<\/td>\n<td style=\"text-align: center;\">VAR18F-1N<\/td>\n<td style=\"text-align: center;\">170<\/td>\n<td style=\"text-align: center;\">200<\/td>\n<td style=\"text-align: center;\">84<\/td>\n<td style=\"text-align: center;\">10<\/td>\n<td style=\"text-align: center;\">30<\/td>\n<td style=\"text-align: center;\">116<\/td>\n<td style=\"text-align: center;\">M6<\/td>\n<td style=\"text-align: center;\">22<\/td>\n<td style=\"text-align: center;\">4.5<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">20<\/td>\n<td style=\"text-align: center;\">VAR20F-1N<\/td>\n<td style=\"text-align: center;\">170<\/td>\n<td style=\"text-align: center;\">200<\/td>\n<td style=\"text-align: center;\">84<\/td>\n<td style=\"text-align: center;\">10<\/td>\n<td style=\"text-align: center;\">30<\/td>\n<td style=\"text-align: center;\">116<\/td>\n<td style=\"text-align: center;\">M6<\/td>\n<td style=\"text-align: center;\">23<\/td>\n<td style=\"text-align: center;\">5.0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><a href=\"https:\/\/www.kfactor.it\/wp-content\/uploads\/2016\/03\/ft-varf1-n1.jpg\">\u00a0<\/a><\/p>\n<div align=\"left\">\n<table border=\"0\" width=\"650\">\n<tbody>\n<tr>\n<td><a href=\"https:\/\/www.kfactor.it\/wp-content\/uploads\/2016\/03\/dis-varf1-n3.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-4682 size-medium\" title=\"drawing of variable transformer, single phase, open type\" src=\"https:\/\/www.kfactor.it\/wp-content\/uploads\/2016\/03\/dis-varf1-n3-300x145.gif\" alt=\"drawing of variable transformer, single phase, open type\" width=\"300\" height=\"145\" \/><\/a><\/td>\n<td style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-8269\" src=\"https:\/\/www.kfactor.it\/wp-content\/uploads\/2020\/02\/ft-var26-60f-1n.jpg\" alt=\"single phase variable transformer\" width=\"173\" height=\"173\" srcset=\"https:\/\/www.kfactor.it\/wp-content\/uploads\/2020\/02\/ft-var26-60f-1n.jpg 283w, https:\/\/www.kfactor.it\/wp-content\/uploads\/2020\/02\/ft-var26-60f-1n-100x100.jpg 100w, https:\/\/www.kfactor.it\/wp-content\/uploads\/2020\/02\/ft-var26-60f-1n-130x130.jpg 130w, https:\/\/www.kfactor.it\/wp-content\/uploads\/2020\/02\/ft-var26-60f-1n-150x150.jpg 150w, https:\/\/www.kfactor.it\/wp-content\/uploads\/2020\/02\/ft-var26-60f-1n-640x640.jpg 640w, https:\/\/www.kfactor.it\/wp-content\/uploads\/2020\/02\/ft-var26-60f-1n-600x600.jpg 600w, https:\/\/www.kfactor.it\/wp-content\/uploads\/2020\/02\/ft-var26-60f-1n-360x360.jpg 360w, https:\/\/www.kfactor.it\/wp-content\/uploads\/2020\/02\/ft-var26-60f-1n-47x48.jpg 47w\" sizes=\"auto, (max-width: 173px) 100vw, 173px\" \/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div align=\"left\">\n<table width=\"650\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\">current<\/td>\n<td style=\"text-align: center;\" rowspan=\"2\">part no.<\/td>\n<td style=\"text-align: center;\" colspan=\"6\">dimensions mm.<\/td>\n<td style=\"text-align: center;\">weight<\/td>\n<td style=\"text-align: center;\">MAX<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">A<\/td>\n<td style=\"text-align: center;\">A<\/td>\n<td style=\"text-align: center;\">B<\/td>\n<td style=\"text-align: center;\">C<\/td>\n<td style=\"text-align: center;\">D<\/td>\n<td style=\"text-align: center;\">R<\/td>\n<td style=\"text-align: center;\">F<\/td>\n<td style=\"text-align: center;\">kg.<\/td>\n<td style=\"text-align: center;\">kVA<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">26<\/td>\n<td style=\"text-align: center;\">VAR26F-1N<\/td>\n<td style=\"text-align: center;\">200<\/td>\n<td style=\"text-align: center;\">235<\/td>\n<td style=\"text-align: center;\">15<\/td>\n<td style=\"text-align: center;\">80<\/td>\n<td style=\"text-align: center;\">200<\/td>\n<td style=\"text-align: center;\">M6<\/td>\n<td style=\"text-align: center;\">35<\/td>\n<td style=\"text-align: center;\">6.5<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">30<\/td>\n<td style=\"text-align: center;\">VAR30F-1N<\/td>\n<td style=\"text-align: center;\">200<\/td>\n<td style=\"text-align: center;\">250<\/td>\n<td style=\"text-align: center;\">15<\/td>\n<td style=\"text-align: center;\">80<\/td>\n<td style=\"text-align: center;\">220<\/td>\n<td style=\"text-align: center;\">M6<\/td>\n<td style=\"text-align: center;\">39<\/td>\n<td style=\"text-align: center;\">7.5<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">40<\/td>\n<td style=\"text-align: center;\">VAR40F-1N<\/td>\n<td style=\"text-align: center;\">220<\/td>\n<td style=\"text-align: center;\">250<\/td>\n<td style=\"text-align: center;\">15<\/td>\n<td style=\"text-align: center;\">80<\/td>\n<td style=\"text-align: center;\">220<\/td>\n<td style=\"text-align: center;\">M6<\/td>\n<td style=\"text-align: center;\">47<\/td>\n<td style=\"text-align: center;\">10.0<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">50<\/td>\n<td style=\"text-align: center;\">VAR50F-1N<\/td>\n<td style=\"text-align: center;\">230<\/td>\n<td style=\"text-align: center;\">305<\/td>\n<td style=\"text-align: center;\">15<\/td>\n<td style=\"text-align: center;\">80<\/td>\n<td style=\"text-align: center;\">240<\/td>\n<td style=\"text-align: center;\">M6<\/td>\n<td style=\"text-align: center;\">64<\/td>\n<td style=\"text-align: center;\">12.5<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">60<\/td>\n<td style=\"text-align: center;\">VAR60F-1N<\/td>\n<td style=\"text-align: center;\">245<\/td>\n<td style=\"text-align: center;\">305<\/td>\n<td style=\"text-align: center;\">15<\/td>\n<td style=\"text-align: center;\">80<\/td>\n<td style=\"text-align: center;\">240<\/td>\n<td style=\"text-align: center;\">M6<\/td>\n<td style=\"text-align: center;\">72<\/td>\n<td style=\"text-align: center;\">15.0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>SINGLE PHASE VARIABLE TRANSFORMERS, OPEN TYPE from 4A to 60A 0:250V Input voltage: 230Vac Adjustable output voltage: 0 : 250Vac Open type,\u00a0panel mounting IP00 grade of protection Isolation class\u00a0E (AT max 45\u00b0C) Single winding with intermediate taps on request Resin impregnated and tropicalized Knob and dial available on request Custom executions: motorized model, closed type, [&hellip;]<\/p>\n","protected":false},"featured_media":8269,"template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[230],"product_tag":[607,345,335,293,346],"class_list":["post-7172","product","type-product","status-publish","has-post-thumbnail","product_cat-variable-transformers","product_tag-motorized-variator","product_tag-single-phase-variator","product_tag-variac","product_tag-voltage-regulators","product_tag-voltage-variators","has-post-title","has-post-date","has-post-category","has-post-tag","has-post-comment","has-post-author","","first","instock","featured","taxable","shipping-taxable","product-type-simple"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>VARF-1N - SINGLE PHASE VARIABLE TRANSFORMERS, OPEN TYPE from 4A to 60A 0:250V - K-factor<\/title>\n<meta name=\"description\" content=\"VARF-1N series manual single-phase voltage variators (4A-60A). 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