{"id":21955,"date":"2025-09-24T03:18:04","date_gmt":"2025-09-24T03:18:04","guid":{"rendered":"https:\/\/www.tronkiele.com\/?p=21955"},"modified":"2025-09-25T08:47:16","modified_gmt":"2025-09-25T08:47:16","slug":"autotransformer-vs-isolation-transformer","status":"publish","type":"post","link":"https:\/\/www.tronkiele.com\/ru\/autotransformer-vs-isolation-transformer\/","title":{"rendered":"\u0412 \u0447\u0435\u043c \u0440\u0430\u0437\u043d\u0438\u0446\u0430 \u043c\u0435\u0436\u0434\u0443 \u0430\u0432\u0442\u043e\u0442\u0440\u0430\u043d\u0441\u0444\u043e\u0440\u043c\u0430\u0442\u043e\u0440\u043e\u043c \u0438 \u0438\u0437\u043e\u043b\u0438\u0440\u0443\u044e\u0449\u0438\u043c \u0442\u0440\u0430\u043d\u0441\u0444\u043e\u0440\u043c\u0430\u0442\u043e\u0440\u043e\u043c?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"21955\" class=\"elementor elementor-21955\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"wd-negative-gap elementor-element elementor-element-2030f5f7 e-flex e-con-boxed e-con e-parent\" data-id=\"2030f5f7\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3c64c005 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"3c64c005\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\"><p>An <strong>autotransformer<\/strong> changes voltage using a single tapped winding \u2014 it\u2019s compact, efficient and cost-effective when you don\u2019t need electrical isolation. An <strong><a href=\"https:\/\/www.tronkiele.com\/product-category\/low-voltage-transformer\/isolation-transformer\/\">isolation transformer<\/a><\/strong> uses separate primary and secondary windings to provide galvanic isolation \u2014 it\u2019s used where safety, noise suppression or a separated neutral\/ground is required.<\/p><h2 class=\"wp-block-heading\">How each one works<\/h2><h3 class=\"wp-block-heading\">Autotransformer (simple and efficient)<\/h3><ul class=\"wp-block-list\"><li>Uses a <strong>single continuous winding<\/strong> with taps. Part of the winding acts as the primary and part as the secondary.<\/li>\n\n<li>Voltage change is achieved by taking output from a tap on that same winding.<\/li>\n\n<li>For <strong>small voltage changes<\/strong> the autotransformer needs less copper and is lighter, cheaper and often more efficient for the same apparent kVA.<\/li>\n\n<li><strong>No galvanic isolation<\/strong>: input and output share conductors so there\u2019s a direct electrical connection.<\/li><\/ul><p><\/p><h3 class=\"wp-block-heading\">Isolation transformer (safety &amp; clean power)<\/h3><ul class=\"wp-block-list\"><li>Has <strong>separate primary and secondary windings<\/strong> magnetically coupled through the core.<\/li>\n\n<li><strong>Galvanic isolation<\/strong>: no direct electrical connection between input and output \u2014 this breaks ground loops and improves safety.<\/li>\n\n<li>Often available with <strong>electrostatic shielding<\/strong> between windings to suppress high-frequency common-mode noise and provide a defined neutral\/ground point.<\/li>\n\n<li>Preferred when protective separation, equipment safety, or strict noise immunity is required.<\/li><\/ul><h2 class=\"wp-block-heading\">Key differences at a glance<\/h2><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Topic<\/th><th>Autotransformer<\/th><th>Isolation Transformer<\/th><\/tr><\/thead><tbody><tr><td>Galvanic isolation<\/td><td>No<\/td><td>Yes<\/td><\/tr><tr><td>Typical use when<\/td><td>Large kVA, small voltage change, cost\/space limited<\/td><td>Safety-critical loads, noise-sensitive equipment<\/td><\/tr><tr><td>Size &amp; cost (for small voltage change)<\/td><td>Smaller \/ cheaper \/ higher efficiency<\/td><td>Larger \/ more expensive<\/td><\/tr><tr><td>EMI \/ ground-loop control<\/td><td>Limited<\/td><td>Good (especially with shield)<\/td><\/tr><tr><td>Suitable for medical\/service\/work safety<\/td><td>Not recommended<\/td><td>Recommended \/ often required<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"wp-block-heading\">When to choose which \u2014 practical guide<\/h2><p><strong>Choose an autotransformer if:<\/strong><\/p><ul class=\"wp-block-list\"><li>You only need economical voltage conversion and <strong>no electrical isolation<\/strong>.<\/li>\n\n<li>The voltage change is relatively small and <strong>size\/weight\/cost<\/strong> matter (e.g., motor starting, utility step-up\/step-down).<\/li>\n\n<li>Regulations or equipment specs do <strong>not<\/strong> require isolation.<\/li><\/ul><p><strong>Choose an isolation transformer if:<\/strong><\/p><ul class=\"wp-block-list\"><li>You need <strong>safety isolation<\/strong> for personnel or equipment (medical devices, test benches).<\/li>\n\n<li>You must <strong>break ground loops<\/strong> or suppress common-mode noise for sensitive electronics or IT systems.<\/li>\n\n<li>You need a <strong>new neutral\/grounding point<\/strong> or have regulatory requirements demanding isolation.<\/li><\/ul><p><strong>Rule of thumb:<\/strong> if the spec or local code requires galvanic separation, do <strong>not<\/strong> substitute an autotransformer.<\/p><h2 class=\"wp-block-heading\">Practical examples<\/h2><ul class=\"wp-block-list\"><li><strong>Data center \/ servers:<\/strong> Isolation transformer (prevents ground loops, reduces EMI).<\/li>\n\n<li><strong>Large motor step-up from bus:<\/strong> Autotransformer (economical for big kVA, small voltage change).<\/li>\n\n<li><strong>Medical imaging \/ diagnostic machines:<\/strong> Isolation transformer (safety &amp; compliance).<\/li>\n\n<li><strong>Low-change HV distribution:<\/strong> Autotransformer (compact and efficient).<\/li><\/ul><h2 class=\"wp-block-heading\">Sizing &amp; safety tips<\/h2><ul class=\"wp-block-list\"><li>Always size with margin: allow for inrush\/start currents, harmonics and ambient temperature.<\/li>\n\n<li>For motors include starting current (inrush) in selection.<\/li>\n\n<li>If waveform quality matters, request THD\/waveform specs and models with shielding.<\/li>\n\n<li>Verify applicable standards and request test certificates (dielectric test, insulation resistance, temperature-rise report).<\/li>\n\n<li>Never bypass isolation requirements in procurement documents\u2014safety rules exist for a reason.<\/li><\/ul><h2 class=\"wp-block-heading\">What to look for when buying (quality checklist)<\/h2><ul class=\"wp-block-list\"><li><strong>Core material:<\/strong> cold-rolled silicon steel laminations for low loss.<\/li>\n\n<li><strong>Winding quality:<\/strong> orthocyclic\/precision winding, vacuum impregnation (VPI) for mechanical stability.<\/li>\n\n<li><strong>Insulation class:<\/strong> F or H for higher thermal life where needed.<\/li>\n\n<li><strong>Tests &amp; certification:<\/strong> hi-pot (dielectric) test, insulation resistance, temperature rise test, plus IEC\/UL\/EN compliance where relevant.<\/li>\n\n<li><strong>Optional features:<\/strong> electrostatic shield (for isolation transformers), taps for regulation, natural\/forced cooling as required.<\/li><\/ul><h2 class=\"wp-block-heading\">FAQs<\/h2><p><strong>Q \u2014 Can an autotransformer replace an isolation transformer to save cost?<\/strong><br>A \u2014 No. If the application or regulation requires galvanic separation (safety, medical, certain test setups), an autotransformer is <strong>not<\/strong> an acceptable substitute.<\/p><p><strong>Q \u2014 Which is more efficient?<\/strong><br>A \u2014 For small voltage changes, autotransformers are typically more material- and energy-efficient because part of the power is transferred conductively through the winding. But efficiency is secondary to safety when isolation is required.<\/p><p><strong>Q \u2014 How do I decide for my project?<\/strong><br>A \u2014 Ask: (1) Do you need galvanic isolation or a new grounded neutral? (2) Is the voltage change small and are cost\/space critical? (3) Are there regulatory or equipment constraints? If in doubt, consult a qualified electrical engineer or your transformer supplier and request site-specific recommendations and test reports.<\/p><h2 class=\"wp-block-heading\">Final note (EEAT boost)<\/h2><p>If you need, we can provide: model-specific datasheets, test reports (hi-pot, IR, temp rise), and compliance certificates (IEC\/UL\/EN where applicable). Send your system voltage, load profile and regulatory requirements and we\u2019ll recommend the right solution \u2014 <strong>autotransformer<\/strong> or <strong>isolation transformer<\/strong> \u2014 for safety, cost and performance.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2258e2c elementor-widget elementor-widget-wd_text_block\" data-id=\"2258e2c\" data-element_type=\"widget\" data-widget_type=\"wd_text_block.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"wd-text-block reset-last-child text-left\">\n\t\t\t\n\t\t\t<h2>Related Blogs<\/h2>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6243ce2 wd-width-100 elementor-widget elementor-widget-wd_blog\" data-id=\"6243ce2\" data-element_type=\"widget\" data-widget_type=\"wd_blog.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"wd-blog-element\">\n\t\t\t\t\t<div class=\"wd-posts wd-blog-holder wd-grid-g\" id=\"69d2b22e97b96\" data-paged=\"1\" data-atts=\"{&quot;post_type&quot;:&quot;ids&quot;,&quot;items_per_page&quot;:4,&quot;include&quot;:[&quot;21959&quot;,&quot;21955&quot;,&quot;21920&quot;],&quot;taxonomies&quot;:null,&quot;offset&quot;:null,&quot;orderby&quot;:&quot;&quot;,&quot;order&quot;:&quot;DESC&quot;,&quot;meta_key&quot;:null,&quot;exclude&quot;:null,&quot;parts_media&quot;:true,&quot;parts_title&quot;:&quot;1&quot;,&quot;parts_meta&quot;:&quot;&quot;,&quot;parts_text&quot;:&quot;1&quot;,&quot;parts_btn&quot;:&quot;1&quot;,&quot;img_size&quot;:&quot;medium&quot;,&quot;blog_design&quot;:&quot;list&quot;,&quot;blog_carousel_design&quot;:null,&quot;blog_columns&quot;:null,&quot;blog_columns_tablet&quot;:{&quot;size&quot;:&quot;&quot;},&quot;blog_columns_mobile&quot;:{&quot;size&quot;:&quot;&quot;},&quot;blog_spacing&quot;:null,&quot;blog_spacing_tablet&quot;:&quot;&quot;,&quot;blog_spacing_mobile&quot;:&quot;&quot;,&quot;pagination&quot;:&quot;&quot;,&quot;speed&quot;:null,&quot;slides_per_view&quot;:null,&quot;slides_per_view_tablet&quot;:{&quot;size&quot;:&quot;&quot;},&quot;slides_per_view_mobile&quot;:{&quot;size&quot;:&quot;&quot;},&quot;wrap&quot;:null,&quot;autoplay&quot;:null,&quot;hide_pagination_control&quot;:null,&quot;hide_prev_next_buttons&quot;:null,&quot;scroll_per_page&quot;:null,&quot;lazy_loading&quot;:&quot;yes&quot;,&quot;scroll_carousel_init&quot;:null,&quot;ajax_page&quot;:&quot;&quot;,&quot;custom_sizes&quot;:false,&quot;elementor&quot;:true}\" data-source=\"shortcode\">\n\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n<article id=\"post-21959\" class=\"wd-post blog-design-list blog-post-loop blog-style-bg wd-add-shadow post-21959 post type-post status-publish format-standard hentry category-transformer\">\n\t<div class=\"wd-post-inner\">\n\t\t<div class=\"wd-post-thumb\">\n\t\t\t\t\t\t\t<div class=\"wd-post-img\">\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"post-date wd-post-date wd-style-with-bg\">\n\t\t\t\t<span class=\"post-date-day\">\n\t\t\t\t\t24\t\t\t\t<\/span>\n\t\t\t\t<span class=\"post-date-month\">\n\t\t\t\t\t\u0421\u0435\u043d\t\t\t\t<\/span>\n\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<a class=\"wd-post-link wd-fill\" href=\"https:\/\/www.tronkiele.com\/ru\/how-to-identify-an-isolation-transformer\/\" rel=\"bookmark\" aria-label=\"Link on post How to Identify an Isolation Transformer \u2014 Practical Tests, Nameplate Clues &amp; Buyer Checklist\"><\/a>\n\t\t\t\t\t<\/div>\n\n\t\t<div class=\"wd-post-content\">\n\t\t\t<div class=\"wd-post-content-inner wd-scroll\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<h3 class=\"wd-entities-title title post-title\">\n\t\t\t\t\t\t<a href=\"https:\/\/www.tronkiele.com\/ru\/how-to-identify-an-isolation-transformer\/\" rel=\"bookmark\">\n\t\t\t\t\t\t\tHow to Identify an Isolation Transformer \u2014 Practical Tests, Nameplate Clues &amp; Buyer Checklist\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/h3>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"wd-entry-content wd-scroll-content\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\nAn isolation transformer provides galvanic separation between its primary and secondary windings. That electrical...\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"wd-read-more\">\n\t\t\t\t\t\t<a class=\"btn-read-more more-link\" href=\"https:\/\/www.tronkiele.com\/ru\/how-to-identify-an-isolation-transformer\/\">Continue reading<\/a>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t<\/div>\n<\/article>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n<article id=\"post-21955\" class=\"wd-post blog-design-list blog-post-loop blog-style-bg wd-add-shadow post-21955 post type-post status-publish format-standard hentry category-transformer\">\n\t<div class=\"wd-post-inner\">\n\t\t<div class=\"wd-post-thumb\">\n\t\t\t\t\t\t\t<div class=\"wd-post-img\">\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"post-date wd-post-date wd-style-with-bg\">\n\t\t\t\t<span class=\"post-date-day\">\n\t\t\t\t\t24\t\t\t\t<\/span>\n\t\t\t\t<span class=\"post-date-month\">\n\t\t\t\t\t\u0421\u0435\u043d\t\t\t\t<\/span>\n\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<a class=\"wd-post-link wd-fill\" href=\"https:\/\/www.tronkiele.com\/ru\/autotransformer-vs-isolation-transformer\/\" rel=\"bookmark\" aria-label=\"Link on post What\u2019s the difference between an autotransformer and an isolation transformer?\"><\/a>\n\t\t\t\t\t<\/div>\n\n\t\t<div class=\"wd-post-content\">\n\t\t\t<div class=\"wd-post-content-inner wd-scroll\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<h3 class=\"wd-entities-title title post-title\">\n\t\t\t\t\t\t<a href=\"https:\/\/www.tronkiele.com\/ru\/autotransformer-vs-isolation-transformer\/\" rel=\"bookmark\">\n\t\t\t\t\t\t\tWhat\u2019s the difference between an autotransformer and an isolation transformer?\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/h3>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"wd-entry-content wd-scroll-content\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\nAn autotransformer changes voltage using a single tapped winding \u2014 it\u2019s compact, 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class=\"post-date-month\">\n\t\t\t\t\t\u0421\u0435\u043d\t\t\t\t<\/span>\n\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<a class=\"wd-post-link wd-fill\" href=\"https:\/\/www.tronkiele.com\/ru\/isolation-transformer-price-and-purchasing\/\" rel=\"bookmark\" aria-label=\"Link on post Isolation Transformer Price and Purchasing Guide\"><\/a>\n\t\t\t\t\t<\/div>\n\n\t\t<div class=\"wd-post-content\">\n\t\t\t<div class=\"wd-post-content-inner wd-scroll\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<h3 class=\"wd-entities-title title post-title\">\n\t\t\t\t\t\t<a href=\"https:\/\/www.tronkiele.com\/ru\/isolation-transformer-price-and-purchasing\/\" rel=\"bookmark\">\n\t\t\t\t\t\t\tIsolation Transformer Price and Purchasing Guide\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/h3>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"wd-entry-content wd-scroll-content\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\nAn isolation transformer provides galvanic separation between the power source and the load to improve safety and...\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"wd-read-more\">\n\t\t\t\t\t\t<a class=\"btn-read-more more-link\" href=\"https:\/\/www.tronkiele.com\/ru\/isolation-transformer-price-and-purchasing\/\">Continue reading<\/a>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t<\/div>\n<\/article>\n\t\t\t\t\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\n\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-31b9fa0 elementor-widget elementor-widget-wd_text_block\" data-id=\"31b9fa0\" data-element_type=\"widget\" data-widget_type=\"wd_text_block.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"wd-text-block reset-last-child text-left\">\n\t\t\t\n\t\t\t<h2>Related Products<\/h2>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bcf5444 wd-width-100 elementor-widget elementor-widget-wd_products\" data-id=\"bcf5444\" data-element_type=\"widget\" data-widget_type=\"wd_products.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t<div class=\"wd-products-element\">\n\n\t\t\t\n\t\t\t\n\t\t\t\n\t\t\t\n\t\t\t<div class=\"products wd-products grid-columns-4 elements-grid wd-grid-g\" data-paged=\"1\" data-atts=\"{&quot;carousel_id&quot;:&quot;5000&quot;,&quot;speed&quot;:null,&quot;slides_per_view&quot;:null,&quot;slides_per_view_tablet&quot;:{&quot;size&quot;:&quot;&quot;},&quot;slides_per_view_mobile&quot;:{&quot;size&quot;:&quot;&quot;},&quot;wrap&quot;:null,&quot;loop&quot;:false,&quot;autoplay&quot;:null,&quot;autoheight&quot;:null,&quot;hide_pagination_control&quot;:null,&quot;hide_pagination_control_tablet&quot;:&quot;yes&quot;,&quot;hide_pagination_control_mobile&quot;:&quot;yes&quot;,&quot;dynamic_pagination_control&quot;:null,&quot;hide_prev_next_buttons&quot;:null,&quot;carousel_arrows_position&quot;:null,&quot;hide_scrollbar&quot;:null,&quot;hide_scrollbar_tablet&quot;:&quot;yes&quot;,&quot;hide_scrollbar_mobile&quot;:&quot;yes&quot;,&quot;scroll_per_page&quot;:null,&quot;dragEndSpeed&quot;:200,&quot;center_mode&quot;:null,&quot;custom_sizes&quot;:false,&quot;sliding_speed&quot;:false,&quot;animation&quot;:false,&quot;content_animation&quot;:false,&quot;post_type&quot;:&quot;product&quot;,&quot;slider&quot;:&quot;&quot;,&quot;library&quot;:&quot;&quot;,&quot;css&quot;:&quot;&quot;,&quot;effect&quot;:&quot;&quot;,&quot;spacing&quot;:&quot;&quot;,&quot;spacing_tablet&quot;:&quot;&quot;,&quot;spacing_mobile&quot;:&quot;&quot;,&quot;carousel_sync&quot;:null,&quot;sync_parent_id&quot;:null,&quot;sync_child_id&quot;:null,&quot;scroll_carousel_init&quot;:null,&quot;disable_overflow_carousel&quot;:null,&quot;element_title&quot;:&quot;&quot;,&quot;element_title_tag&quot;:&quot;h4&quot;,&quot;query_post_type&quot;:&quot;product&quot;,&quot;include&quot;:null,&quot;taxonomies&quot;:[&quot;98&quot;],&quot;offset&quot;:&quot;&quot;,&quot;orderby&quot;:&quot;&quot;,&quot;query_type&quot;:&quot;OR&quot;,&quot;order&quot;:null,&quot;meta_key&quot;:null,&quot;exclude&quot;:&quot;&quot;,&quot;shop_tools&quot;:null,&quot;hide_out_of_stock&quot;:&quot;no&quot;,&quot;ajax_recently_viewed&quot;:null,&quot;layout&quot;:&quot;grid&quot;,&quot;pagination&quot;:&quot;&quot;,&quot;pagination_arrows_position&quot;:null,&quot;items_per_page&quot;:4,&quot;columns&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:4,&quot;sizes&quot;:[]},&quot;columns_tablet&quot;:{&quot;size&quot;:&quot;&quot;},&quot;columns_mobile&quot;:{&quot;size&quot;:&quot;&quot;},&quot;products_masonry&quot;:&quot;&quot;,&quot;products_different_sizes&quot;:&quot;&quot;,&quot;product_quantity&quot;:&quot;&quot;,&quot;product_hover&quot;:&quot;inherit&quot;,&quot;sale_countdown&quot;:&quot;0&quot;,&quot;stretch_product&quot;:null,&quot;stretch_product_tablet&quot;:0,&quot;stretch_product_mobile&quot;:0,&quot;stock_progress_bar&quot;:&quot;0&quot;,&quot;highlighted_products&quot;:&quot;0&quot;,&quot;products_bordered_grid&quot;:&quot;0&quot;,&quot;products_bordered_grid_style&quot;:null,&quot;products_with_background&quot;:&quot;0&quot;,&quot;products_shadow&quot;:&quot;0&quot;,&quot;products_color_scheme&quot;:&quot;default&quot;,&quot;img_size&quot;:&quot;large&quot;,&quot;img_size_custom&quot;:null,&quot;grid_gallery&quot;:&quot;&quot;,&quot;grid_gallery_control&quot;:null,&quot;grid_gallery_enable_arrows&quot;:null,&quot;ajax_page&quot;:&quot;&quot;,&quot;force_not_ajax&quot;:&quot;no&quot;,&quot;lazy_loading&quot;:&quot;no&quot;,&quot;elementor&quot;:true,&quot;wrapper_classes&quot;:&quot;&quot;}\" data-source=\"shortcode\" data-columns=\"4\" data-grid-gallery=\"\" style=\"--wd-col-lg:4;--wd-col-md:4;--wd-col-sm:2;--wd-gap-lg:20px;--wd-gap-sm:10px;\">\n\t\t\n\t\t\t\t\t\t\t\t<div class=\"wd-product wd-hover-base wd-hover-with-fade wd-col product-grid-item product product-no-swatches type-product post-22200 status-publish instock product_cat-isolation-transformer product_cat-low-voltage-transformer product_cat-single-phase-transformers has-post-thumbnail taxable shipping-taxable product-type-simple\" data-loop=\"1\" data-id=\"22200\">\n\t\n\t\n<div class=\"product-wrapper\">\n\t<div class=\"content-product-imagin\"><\/div>\n\t<div class=\"product-element-top wd-quick-shop\">\n\t\t<a href=\"https:\/\/www.tronkiele.com\/ru\/product\/single-phase-toroidal-isolation-transformer\/\" class=\"product-image-link\">\n\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"600\" height=\"600\" src=\"https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/10\/Single-Phase-Toroidal-Isolation-Transformer-220v-To-220v-With-2-Output-Sockets.webp\" class=\"attachment-large size-large\" alt=\"Single Phase Toroidal Isolation Transformer 220v To 220v With 2 Output Sockets\" srcset=\"https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/10\/Single-Phase-Toroidal-Isolation-Transformer-220v-To-220v-With-2-Output-Sockets.webp 600w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/10\/Single-Phase-Toroidal-Isolation-Transformer-220v-To-220v-With-2-Output-Sockets-300x300.webp 300w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/10\/Single-Phase-Toroidal-Isolation-Transformer-220v-To-220v-With-2-Output-Sockets-150x150.webp 150w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/10\/Single-Phase-Toroidal-Isolation-Transformer-220v-To-220v-With-2-Output-Sockets-12x12.webp 12w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/10\/Single-Phase-Toroidal-Isolation-Transformer-220v-To-220v-With-2-Output-Sockets-430x430.webp 430w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>\t\t<\/a>\n\n\t\t\n\t\t<div class=\"wrapp-swatches\"><\/div>\n\n\t<\/div>\n\n\t<div class=\"product-element-bottom product-information\">\n\t\t<h3 class=\"wd-entities-title\"><a href=\"https:\/\/www.tronkiele.com\/ru\/product\/single-phase-toroidal-isolation-transformer\/\">Single Phase Toroidal Isolation Transformer 220v To 220v With 2 Output Sockets<\/a><\/h3>\t\t\t\t<div class=\"wd-product-cats\">\n\t\t\t<a href=\"https:\/\/www.tronkiele.com\/ru\/product-category\/low-voltage-transformer\/\" rel=\"tag\">Low Voltage Transformer<\/a>, <a href=\"https:\/\/www.tronkiele.com\/ru\/product-category\/low-voltage-transformer\/isolation-transformer\/\" rel=\"tag\">Isolation Transformer<\/a>, <a href=\"https:\/\/www.tronkiele.com\/ru\/product-category\/low-voltage-transformer\/single-phase-transformers\/\" rel=\"tag\">Single Phase Transformers<\/a>\t\t<\/div>\n\t\t\t\t<div class=\"product-rating-price\">\n\t\t\t<div class=\"wrapp-product-price\">\n\t\t\t\t\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t<div class=\"fade-in-block wd-scroll\">\n\t\t\t<div class=\"hover-content wd-more-desc\">\n\t\t\t\t<div class=\"hover-content-inner wd-more-desc-inner\">\n\t\t\t\t\tThis 220V to 220V single-phase toroidal isolation transformer is made to supply delicate electronic and audio devices with clean, steady, and noiseless power. It efficiently isolates electrical noise and interference using high-efficiency toroidal core technology, guaranteeing connected devices operate at their best and are safe.\r\n\r\nWith two outputs and a smart HD LCD display, users can effortlessly keep an eye on operating condition, load, and voltage in real time. This isolation transformer provides clean power, low electromagnetic interference, and long-term reliability whether it is utilized in industrial control systems, medical equipment, audio systems, or labs.\t\t\t\t<\/div>\n\t\t\t\t<a href=\"#\" rel=\"nofollow\" class=\"wd-more-desc-btn\" aria-label=\"Read more description\"><span><\/span><\/a>\n\t\t\t<\/div>\n\t\t\t<div class=\" wd-bottom-actions\">\n\t\t\t\t<div class=\"wrap-wishlist-button\"><\/div>\n\t\t\t\t<div class=\"wd-add-btn wd-add-btn-replace\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"wrap-quickview-button\">\t\t<div class=\"quick-view wd-action-btn wd-style-icon wd-quick-view-icon\">\n\t\t\t<a\n\t\t\t\thref=\"https:\/\/www.tronkiele.com\/ru\/product\/single-phase-toroidal-isolation-transformer\/\"\n\t\t\t\tclass=\"open-quick-view quick-view-button\"\n\t\t\t\trel=\"nofollow\"\n\t\t\t\tdata-id=\"22200\"\n\t\t\t\t>Quick view<\/a>\n\t\t<\/div>\n\t\t<\/div>\n\t\t\t<\/div>\n\n\n\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t<\/div>\n<\/div>\n<\/div>\n\t\t\t\t\t\t\t\t<div class=\"wd-product wd-hover-base wd-hover-with-fade wd-col product-grid-item product product-no-swatches type-product post-22039 status-publish last instock product_cat-control-transformers product_cat-isolation-transformer product_cat-low-voltage-transformer product_cat-single-phase-transformers has-post-thumbnail taxable shipping-taxable product-type-simple\" data-loop=\"2\" data-id=\"22039\">\n\t\n\t\n<div class=\"product-wrapper\">\n\t<div class=\"content-product-imagin\"><\/div>\n\t<div class=\"product-element-top wd-quick-shop\">\n\t\t<a href=\"https:\/\/www.tronkiele.com\/ru\/product\/single-phase-lighting-step-down-control-transformer\/\" class=\"product-image-link\">\n\t\t\t<img decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/JMB-Portable-Lighting-Step-Down-Control-Transformer-25Va50Kva.webp\" class=\"attachment-large size-large\" alt=\"JMB Portable Lighting Step Down Control Transformer 25Va~50Kva\" srcset=\"https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/JMB-Portable-Lighting-Step-Down-Control-Transformer-25Va50Kva.webp 800w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/JMB-Portable-Lighting-Step-Down-Control-Transformer-25Va50Kva-300x300.webp 300w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/JMB-Portable-Lighting-Step-Down-Control-Transformer-25Va50Kva-150x150.webp 150w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/JMB-Portable-Lighting-Step-Down-Control-Transformer-25Va50Kva-768x768.webp 768w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/JMB-Portable-Lighting-Step-Down-Control-Transformer-25Va50Kva-12x12.webp 12w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/JMB-Portable-Lighting-Step-Down-Control-Transformer-25Va50Kva-430x430.webp 430w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/JMB-Portable-Lighting-Step-Down-Control-Transformer-25Va50Kva-700x700.webp 700w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t<\/a>\n\n\t\t\t\t\t<div class=\"hover-img\">\n\t\t\t\t<a href=\"https:\/\/www.tronkiele.com\/ru\/product\/single-phase-lighting-step-down-control-transformer\/\" aria-label=\"Product image\">\n\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Single-Phase-Construction-Site-Low-Voltage-220V-to-6V.webp\" class=\"attachment-large size-large\" alt=\"Single Phase Construction Site Low Voltage 220V to 6V\" srcset=\"https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Single-Phase-Construction-Site-Low-Voltage-220V-to-6V.webp 800w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Single-Phase-Construction-Site-Low-Voltage-220V-to-6V-300x300.webp 300w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Single-Phase-Construction-Site-Low-Voltage-220V-to-6V-150x150.webp 150w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Single-Phase-Construction-Site-Low-Voltage-220V-to-6V-768x768.webp 768w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Single-Phase-Construction-Site-Low-Voltage-220V-to-6V-12x12.webp 12w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Single-Phase-Construction-Site-Low-Voltage-220V-to-6V-430x430.webp 430w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Single-Phase-Construction-Site-Low-Voltage-220V-to-6V-700x700.webp 700w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t<\/a>\n\t\t\t<\/div>\n\t\t\t\n\t\t<div class=\"wrapp-swatches\"><\/div>\n\n\t<\/div>\n\n\t<div class=\"product-element-bottom product-information\">\n\t\t<h3 class=\"wd-entities-title\"><a href=\"https:\/\/www.tronkiele.com\/ru\/product\/single-phase-lighting-step-down-control-transformer\/\">JMB Single-Phase Portable Lighting Step Down Control Transformer 25Va~50Kva<\/a><\/h3>\t\t\t\t<div class=\"wd-product-cats\">\n\t\t\t<a href=\"https:\/\/www.tronkiele.com\/ru\/product-category\/low-voltage-transformer\/\" rel=\"tag\">Low Voltage Transformer<\/a>, <a href=\"https:\/\/www.tronkiele.com\/ru\/product-category\/low-voltage-transformer\/control-transformers\/\" rel=\"tag\">Control Transformers<\/a>, <a href=\"https:\/\/www.tronkiele.com\/ru\/product-category\/low-voltage-transformer\/isolation-transformer\/\" rel=\"tag\">Isolation Transformer<\/a>, <a href=\"https:\/\/www.tronkiele.com\/ru\/product-category\/low-voltage-transformer\/single-phase-transformers\/\" rel=\"tag\">Single Phase Transformers<\/a>\t\t<\/div>\n\t\t\t\t<div class=\"product-rating-price\">\n\t\t\t<div class=\"wrapp-product-price\">\n\t\t\t\t\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t<div class=\"fade-in-block wd-scroll\">\n\t\t\t<div class=\"hover-content wd-more-desc\">\n\t\t\t\t<div class=\"hover-content-inner wd-more-desc-inner\">\n\t\t\t\t\tThe JMB series is our rugged, portable single-phase control transformer built for lighting and small industrial equipment. It steps down common mains voltages to isolated, Safety Extra-Low Voltage (SELV) outputs \u2014 ideal for damp job sites, confined spaces and metal enclosures where safety matters. Available from 25 VA up to 50 kVA, with multiple taps and optional protective features.\t\t\t\t<\/div>\n\t\t\t\t<a href=\"#\" rel=\"nofollow\" class=\"wd-more-desc-btn\" aria-label=\"Read more description\"><span><\/span><\/a>\n\t\t\t<\/div>\n\t\t\t<div class=\" wd-bottom-actions\">\n\t\t\t\t<div class=\"wrap-wishlist-button\"><\/div>\n\t\t\t\t<div class=\"wd-add-btn wd-add-btn-replace\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"wrap-quickview-button\">\t\t<div class=\"quick-view wd-action-btn wd-style-icon wd-quick-view-icon\">\n\t\t\t<a\n\t\t\t\thref=\"https:\/\/www.tronkiele.com\/ru\/product\/single-phase-lighting-step-down-control-transformer\/\"\n\t\t\t\tclass=\"open-quick-view quick-view-button\"\n\t\t\t\trel=\"nofollow\"\n\t\t\t\tdata-id=\"22039\"\n\t\t\t\t>Quick view<\/a>\n\t\t<\/div>\n\t\t<\/div>\n\t\t\t<\/div>\n\n\n\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t<\/div>\n<\/div>\n<\/div>\n\t\t\t\t\t\t\t\t<div class=\"wd-product wd-hover-base wd-hover-with-fade wd-col product-grid-item product product-no-swatches type-product post-22024 status-publish first instock product_cat-control-transformers product_cat-isolation-transformer product_cat-low-voltage-transformer product_cat-three-phase-transformer has-post-thumbnail taxable shipping-taxable product-type-simple\" data-loop=\"3\" data-id=\"22024\">\n\t\n\t\n<div class=\"product-wrapper\">\n\t<div class=\"content-product-imagin\"><\/div>\n\t<div class=\"product-element-top wd-quick-shop\">\n\t\t<a href=\"https:\/\/www.tronkiele.com\/ru\/product\/500va-1000kva-three-phase-dry-type-control-transformer\/\" class=\"product-image-link\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Sg-8kVA-8000va-415V-400V-380V-Three-Phase-Dry-Type-Isolation-Control-Transformer.webp\" class=\"attachment-large size-large\" alt=\"Sg-8kVA 8000va 415V 400V 380V Three Phase Dry Type Isolation Control Transformer\" srcset=\"https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Sg-8kVA-8000va-415V-400V-380V-Three-Phase-Dry-Type-Isolation-Control-Transformer.webp 800w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Sg-8kVA-8000va-415V-400V-380V-Three-Phase-Dry-Type-Isolation-Control-Transformer-300x300.webp 300w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Sg-8kVA-8000va-415V-400V-380V-Three-Phase-Dry-Type-Isolation-Control-Transformer-150x150.webp 150w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Sg-8kVA-8000va-415V-400V-380V-Three-Phase-Dry-Type-Isolation-Control-Transformer-768x768.webp 768w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Sg-8kVA-8000va-415V-400V-380V-Three-Phase-Dry-Type-Isolation-Control-Transformer-12x12.webp 12w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Sg-8kVA-8000va-415V-400V-380V-Three-Phase-Dry-Type-Isolation-Control-Transformer-430x430.webp 430w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Sg-8kVA-8000va-415V-400V-380V-Three-Phase-Dry-Type-Isolation-Control-Transformer-700x700.webp 700w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t<\/a>\n\n\t\t\t\t\t<div class=\"hover-img\">\n\t\t\t\t<a href=\"https:\/\/www.tronkiele.com\/ru\/product\/500va-1000kva-three-phase-dry-type-control-transformer\/\" aria-label=\"Product image\">\n\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/High-Efficiency-Three-Phase-4000va-Dry-Type-Control-Transformer.webp\" class=\"attachment-large size-large\" alt=\"High-Efficiency Three Phase 4000va Dry Type Control Transformer\" srcset=\"https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/High-Efficiency-Three-Phase-4000va-Dry-Type-Control-Transformer.webp 800w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/High-Efficiency-Three-Phase-4000va-Dry-Type-Control-Transformer-300x300.webp 300w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/High-Efficiency-Three-Phase-4000va-Dry-Type-Control-Transformer-150x150.webp 150w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/High-Efficiency-Three-Phase-4000va-Dry-Type-Control-Transformer-768x768.webp 768w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/High-Efficiency-Three-Phase-4000va-Dry-Type-Control-Transformer-12x12.webp 12w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/High-Efficiency-Three-Phase-4000va-Dry-Type-Control-Transformer-430x430.webp 430w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/High-Efficiency-Three-Phase-4000va-Dry-Type-Control-Transformer-700x700.webp 700w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t<\/a>\n\t\t\t<\/div>\n\t\t\t\n\t\t<div class=\"wrapp-swatches\"><\/div>\n\n\t<\/div>\n\n\t<div class=\"product-element-bottom product-information\">\n\t\t<h3 class=\"wd-entities-title\"><a href=\"https:\/\/www.tronkiele.com\/ru\/product\/500va-1000kva-three-phase-dry-type-control-transformer\/\">High-Efficiency 500va-1000Kva Three Phase Dry Type Control Transformer 415V 400V 380V<\/a><\/h3>\t\t\t\t<div class=\"wd-product-cats\">\n\t\t\t<a href=\"https:\/\/www.tronkiele.com\/ru\/product-category\/low-voltage-transformer\/\" rel=\"tag\">Low Voltage Transformer<\/a>, <a href=\"https:\/\/www.tronkiele.com\/ru\/product-category\/low-voltage-transformer\/control-transformers\/\" rel=\"tag\">Control Transformers<\/a>, <a href=\"https:\/\/www.tronkiele.com\/ru\/product-category\/low-voltage-transformer\/isolation-transformer\/\" rel=\"tag\">Isolation Transformer<\/a>, <a href=\"https:\/\/www.tronkiele.com\/ru\/product-category\/low-voltage-transformer\/three-phase-transformer\/\" rel=\"tag\">Three Phase Transformer<\/a>\t\t<\/div>\n\t\t\t\t<div class=\"product-rating-price\">\n\t\t\t<div class=\"wrapp-product-price\">\n\t\t\t\t\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t<div class=\"fade-in-block wd-scroll\">\n\t\t\t<div class=\"hover-content wd-more-desc\">\n\t\t\t\t<div class=\"hover-content-inner wd-more-desc-inner\">\n\t\t\t\t\tThe SBK Series three-phase dry-type control transformer (500VA\u20131kVA) delivers compact, reliable voltage conversion for industrial control, automation and machinery applications. Available with configurable primary and secondary voltages (standard: 380V \/ 400V \/ 415V) and rated for 50Hz or 60Hz systems, this transformer is designed for low-voltage networks (&lt;1kV). Its dry, air-cooled construction eliminates oil, reduces fire risk and lowers routine maintenance \u2014 making it a safe, cost-effective choice for motor control centers, CNC systems, PLC cabinets and distribution panels.\t\t\t\t<\/div>\n\t\t\t\t<a href=\"#\" rel=\"nofollow\" class=\"wd-more-desc-btn\" aria-label=\"Read more description\"><span><\/span><\/a>\n\t\t\t<\/div>\n\t\t\t<div class=\" wd-bottom-actions\">\n\t\t\t\t<div class=\"wrap-wishlist-button\"><\/div>\n\t\t\t\t<div class=\"wd-add-btn wd-add-btn-replace\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"wrap-quickview-button\">\t\t<div class=\"quick-view wd-action-btn wd-style-icon wd-quick-view-icon\">\n\t\t\t<a\n\t\t\t\thref=\"https:\/\/www.tronkiele.com\/ru\/product\/500va-1000kva-three-phase-dry-type-control-transformer\/\"\n\t\t\t\tclass=\"open-quick-view quick-view-button\"\n\t\t\t\trel=\"nofollow\"\n\t\t\t\tdata-id=\"22024\"\n\t\t\t\t>Quick view<\/a>\n\t\t<\/div>\n\t\t<\/div>\n\t\t\t<\/div>\n\n\n\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t<\/div>\n<\/div>\n<\/div>\n\t\t\t\t\t\t\t\t<div class=\"wd-product wd-hover-base wd-hover-with-fade wd-col product-grid-item product product-no-swatches type-product post-21995 status-publish instock product_cat-isolation-transformer product_cat-low-voltage-transformer product_cat-single-phase-transformers has-post-thumbnail taxable shipping-taxable product-type-simple\" data-loop=\"4\" data-id=\"21995\">\n\t\n\t\n<div class=\"product-wrapper\">\n\t<div class=\"content-product-imagin\"><\/div>\n\t<div class=\"product-element-top wd-quick-shop\">\n\t\t<a href=\"https:\/\/www.tronkiele.com\/ru\/product\/single-phase-220v-to-220v-toroidal-balanced-isolation-transformer\/\" class=\"product-image-link\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/220v-to-220v-isolation-transformer-For-audio-equipment.webp\" class=\"attachment-large size-large\" alt=\"220v to 220v isolation transformer For audio equipment\" srcset=\"https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/220v-to-220v-isolation-transformer-For-audio-equipment.webp 800w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/220v-to-220v-isolation-transformer-For-audio-equipment-300x300.webp 300w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/220v-to-220v-isolation-transformer-For-audio-equipment-150x150.webp 150w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/220v-to-220v-isolation-transformer-For-audio-equipment-768x768.webp 768w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/220v-to-220v-isolation-transformer-For-audio-equipment-12x12.webp 12w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/220v-to-220v-isolation-transformer-For-audio-equipment-430x430.webp 430w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/220v-to-220v-isolation-transformer-For-audio-equipment-700x700.webp 700w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t<\/a>\n\n\t\t\t\t\t<div class=\"hover-img\">\n\t\t\t\t<a href=\"https:\/\/www.tronkiele.com\/ru\/product\/single-phase-220v-to-220v-toroidal-balanced-isolation-transformer\/\" aria-label=\"Product image\">\n\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Single-Phase-Isolation-Transformer-220v-To-220v-Safety-Isolation-Power-Supply-AC-Ring-Isolation-Transformer-Power-Converter.webp\" class=\"attachment-large size-large\" alt=\"Single Phase Isolation Transformer 220v To 220v Safety Isolation Power Supply AC Ring Isolation Transformer Power Converter\" srcset=\"https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Single-Phase-Isolation-Transformer-220v-To-220v-Safety-Isolation-Power-Supply-AC-Ring-Isolation-Transformer-Power-Converter.webp 800w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Single-Phase-Isolation-Transformer-220v-To-220v-Safety-Isolation-Power-Supply-AC-Ring-Isolation-Transformer-Power-Converter-300x300.webp 300w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Single-Phase-Isolation-Transformer-220v-To-220v-Safety-Isolation-Power-Supply-AC-Ring-Isolation-Transformer-Power-Converter-150x150.webp 150w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Single-Phase-Isolation-Transformer-220v-To-220v-Safety-Isolation-Power-Supply-AC-Ring-Isolation-Transformer-Power-Converter-768x768.webp 768w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Single-Phase-Isolation-Transformer-220v-To-220v-Safety-Isolation-Power-Supply-AC-Ring-Isolation-Transformer-Power-Converter-12x12.webp 12w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Single-Phase-Isolation-Transformer-220v-To-220v-Safety-Isolation-Power-Supply-AC-Ring-Isolation-Transformer-Power-Converter-430x430.webp 430w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Single-Phase-Isolation-Transformer-220v-To-220v-Safety-Isolation-Power-Supply-AC-Ring-Isolation-Transformer-Power-Converter-700x700.webp 700w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t<\/a>\n\t\t\t<\/div>\n\t\t\t\n\t\t<div class=\"wrapp-swatches\"><\/div>\n\n\t<\/div>\n\n\t<div class=\"product-element-bottom product-information\">\n\t\t<h3 class=\"wd-entities-title\"><a href=\"https:\/\/www.tronkiele.com\/ru\/product\/single-phase-220v-to-220v-toroidal-balanced-isolation-transformer\/\">GBK2 Single Phase 220v To 220v Toroidal Balanced Isolation Transformer 300va-2Kva<\/a><\/h3>\t\t\t\t<div class=\"wd-product-cats\">\n\t\t\t<a href=\"https:\/\/www.tronkiele.com\/ru\/product-category\/low-voltage-transformer\/\" rel=\"tag\">Low Voltage Transformer<\/a>, <a href=\"https:\/\/www.tronkiele.com\/ru\/product-category\/low-voltage-transformer\/isolation-transformer\/\" rel=\"tag\">Isolation Transformer<\/a>, <a href=\"https:\/\/www.tronkiele.com\/ru\/product-category\/low-voltage-transformer\/single-phase-transformers\/\" rel=\"tag\">Single Phase Transformers<\/a>\t\t<\/div>\n\t\t\t\t<div class=\"product-rating-price\">\n\t\t\t<div class=\"wrapp-product-price\">\n\t\t\t\t\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t<div class=\"fade-in-block wd-scroll\">\n\t\t\t<div class=\"hover-content wd-more-desc\">\n\t\t\t\t<div class=\"hover-content-inner wd-more-desc-inner\">\n\t\t\t\t\tEnsure pristine power quality and maximum safety for sensitive loads with the <strong data-start=\"1046\" data-end=\"1085\">GBK2 toroidal isolation transformer<\/strong>. Designed for applications that demand low noise, low leakage and stable output (220V \u2192 220V), the GBK2 series isolates your equipment from mains disturbances, suppresses transients and reduces common-mode interference. Its compact toroidal core delivers higher efficiency and lower audible hum than conventional laminated transformers\u2014ideal for <strong data-start=\"1432\" data-end=\"1510\">medical devices, pro audio, laboratory instruments and industrial controls<\/strong>.\t\t\t\t<\/div>\n\t\t\t\t<a href=\"#\" rel=\"nofollow\" class=\"wd-more-desc-btn\" aria-label=\"Read more description\"><span><\/span><\/a>\n\t\t\t<\/div>\n\t\t\t<div class=\" wd-bottom-actions\">\n\t\t\t\t<div class=\"wrap-wishlist-button\"><\/div>\n\t\t\t\t<div class=\"wd-add-btn wd-add-btn-replace\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"wrap-quickview-button\">\t\t<div class=\"quick-view wd-action-btn wd-style-icon wd-quick-view-icon\">\n\t\t\t<a\n\t\t\t\thref=\"https:\/\/www.tronkiele.com\/ru\/product\/single-phase-220v-to-220v-toroidal-balanced-isolation-transformer\/\"\n\t\t\t\tclass=\"open-quick-view quick-view-button\"\n\t\t\t\trel=\"nofollow\"\n\t\t\t\tdata-id=\"21995\"\n\t\t\t\t>Quick view<\/a>\n\t\t<\/div>\n\t\t<\/div>\n\t\t\t<\/div>\n\n\n\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t<\/div>\n<\/div>\n<\/div>\n\t\t\n\t\t\t\t<\/div>\n\t\n\t\t\n\t\t\n\t\t\t\t\t<\/div>\n\t\t\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>An autotransformer changes voltage using a single tapped winding \u2014 it\u2019s compact, efficient and cost-effective when you don\u2019t need electrical<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[93],"tags":[],"class_list":["post-21955","post","type-post","status-publish","format-standard","hentry","category-transformer"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.0 - 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