{"id":22321,"date":"2025-11-28T08:19:54","date_gmt":"2025-11-28T08:19:54","guid":{"rendered":"https:\/\/www.tronkiele.com\/?p=22321"},"modified":"2025-11-28T08:57:59","modified_gmt":"2025-11-28T08:57:59","slug":"isolation-transformers","status":"publish","type":"post","link":"https:\/\/www.tronkiele.com\/fr\/isolation-transformers\/","title":{"rendered":"Qu'est-ce qu'un transformateur d'isolement ? Principales diff\u00e9rences par rapport \u00e0 un transformateur standard"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"22321\" class=\"elementor elementor-22321\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"wd-negative-gap elementor-element elementor-element-424f1973 e-flex e-con-boxed e-con e-parent\" data-id=\"424f1973\" 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-6ea371dd color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"6ea371dd\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\"><p>In modern electrical systems, safety and power quality are two critical factors that cannot be ignored. One of the most effective devices used to improve both is the <a href=\"\/product-category\/low-voltage-transformer\/isolation-transformer\/\"><mark style=\"background-color:rgba(0, 0, 0, 0);color:#0802ff\" class=\"has-inline-color\">Isolation Transformer<\/mark><\/a>, also known as ISO transformers. Whether you are powering sensitive equipment, reducing electrical noise, or protecting operators from shocks, isolation transformers play an essential role in industrial, commercial, and medical applications.<\/p><p>This blog explains what they are, how they work, the difference between single phase and 3 phase isolation transformers, typical applications, and how to evaluate isolation transformer price when selecting a model.<\/p><h2 class=\"wp-block-heading\"><strong>How Does an Isolation Transformer Work?<\/strong><\/h2><p>Unlike autotransformers, an isolation transformer uses <strong>two separate windings<\/strong>. This design offers two important functions:<\/p><h3 class=\"wp-block-heading\"><strong>1. Electrical Isolation (1:1 Voltage Ratio)<\/strong><\/h3><p>Many isolation transformers have a 1:1 ratio (e.g., 230V to 230V). The input and output voltages remain the same, but the galvanic isolation greatly enhances safety.<\/p><h3 class=\"wp-block-heading\"><strong>2. Noise Filtering &amp; Protection<\/strong><\/h3><p>ISO transformers block:<\/p><ul class=\"wp-block-list\"><li>Ground loops<\/li>\n\n<li>Electrical noise<\/li>\n\n<li>EMI\/RFI interference<\/li>\n\n<li>Surges and spikes<\/li><\/ul><p>This makes them the preferred choice for precision environments such as data centers, laboratories, CNC machines, medical devices, and audio systems.<\/p><h3 class=\"wp-block-heading\"><strong>3. Efficient Power Conditioning<\/strong><\/h3><p>They stabilize voltage, reduce harmonic distortion, and provide a clean power supply for sensitive loads.<\/p><h2 class=\"wp-block-heading\"><strong>Types of Isolation Transformers<\/strong><\/h2><h3 class=\"wp-block-heading\"><strong>1. Single Phase Isolation Transformer<\/strong><\/h3><p>A <strong>single phase isolation transformer<\/strong> is typically used for:<\/p><ul class=\"wp-block-list\"><li>Medical diagnostic equipment<\/li>\n\n<li>Audio\/video equipment<\/li>\n\n<li>Laboratory instruments<\/li>\n\n<li>Office electronics<\/li>\n\n<li>Computers and servers<\/li><\/ul><p>Benefits:<\/p><ul class=\"wp-block-list\"><li>Easy installation<\/li>\n\n<li>Lower cost<\/li>\n\n<li>Suitable for small-to-medium power loads<\/li><\/ul><h3 class=\"wp-block-heading\"><strong>2. Three Phase Isolation Transformer<\/strong><\/h3><p>A <strong>3 phase isolation transformer<\/strong> is designed for:<\/p><ul class=\"wp-block-list\"><li>Industrial production lines<\/li>\n\n<li>CNC and automation equipment<\/li>\n\n<li>Elevators and motors<\/li>\n\n<li>UPS power systems<\/li>\n\n<li>Industrial-grade HVAC systems<\/li><\/ul><p>Advantages:<\/p><ul class=\"wp-block-list\"><li>Higher efficiency<\/li>\n\n<li>Balanced load distribution<\/li>\n\n<li>Stronger capability for large industrial loads<\/li><\/ul><h2 class=\"wp-block-heading\">Isolation Transformer vs Auto Transformer: What\u2019s the Difference?<\/h2><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Feature<\/th><th>Isolation Transformer<\/th><th>Auto Transformer<\/th><\/tr><\/thead><tbody><tr><td>Electrical Isolation<\/td><td>\u2714 Yes<\/td><td>\u2718 No<\/td><\/tr><tr><td>Safety Level<\/td><td>High<\/td><td>Medium<\/td><\/tr><tr><td>Price<\/td><td>Higher<\/td><td>Lower<\/td><\/tr><tr><td>Suitable For<\/td><td>Sensitive &amp; industrial loads<\/td><td>Simple voltage conversion<\/td><\/tr><tr><td>Typical Use<\/td><td>Medical, CNC, telecom, UPS<\/td><td>HVAC, motors, lighting<\/td><\/tr><\/tbody><\/table><\/figure><p>If your application requires <strong>safety + noise filtering + isolation<\/strong>, a standard iso transformer is the correct choice.<\/p><h2 class=\"wp-block-heading\"><strong>Why Isolation Transformers Are Important<\/strong><\/h2><p><strong>1. Safety Protection<\/strong><\/p><p>They prevent electric shocks caused by ground faults because the primary and secondary circuits are not directly connected.<\/p><p><strong>2. Clean &amp; Stable Power<\/strong><\/p><p>Isolation transformers filter out line noise and suppress electromagnetic interference\u2014ideal for precision electronic equipment.<\/p><p><strong>3. Improved Equipment Lifetime<\/strong><\/p><p>By delivering stable and clean power, ISO transformers reduce equipment failures and extend service life.<\/p><p><strong>4. Reduced Risk of Fire &amp; Damage<\/strong><\/p><p>They protect equipment from voltage spikes, lightning surges, and harmonic distortion.<\/p><h2 class=\"wp-block-heading\"><strong>Applications of ISO Transformers<\/strong><\/h2><p>Isolation transformers are widely used in:<\/p><p>\u2714 Hospitals &amp; medical imaging rooms<br>\u2714 Telecommunications equipment<br>\u2714 Marine electrical systems<br>\u2714 Data centers and server rooms<br>\u2714 UPS backup power systems<br>\u2714 CNC machines &amp; industrial automation<br>\u2714 Audio studios &amp; broadcasting rooms<br>\u2714 Laboratory instruments<\/p><p>Whether it\u2019s a <strong>single phase isolation transformer<\/strong> for sensitive electronics or a <strong>3 phase isolation transformer<\/strong> for industrial machinery, these devices ensure reliable, safe power delivery.<\/p><h2 class=\"wp-block-heading\"><strong>Isolation Transformer Price: What Affects the Cost?<\/strong><\/h2><p>The <strong>isolation transformer price<\/strong> can vary widely depending on:<\/p><h3 class=\"wp-block-heading\"><strong>1. Capacity (kVA Rating)<\/strong><\/h3><p>Higher kVA = higher price<br>(Example: 1 kVA &lt; 5 kVA &lt; 30 kVA &lt; 100 kVA)<\/p><h3 class=\"wp-block-heading\"><strong>2. Phase Type<\/strong><\/h3><ul class=\"wp-block-list\"><li>Single-phase (cheaper)<\/li>\n\n<li>Three-phase (more expensive due to higher power handling)<\/li><\/ul><h3 class=\"wp-block-heading\"><strong>3. Coil Material<\/strong><\/h3><ul class=\"wp-block-list\"><li>Copper coil (best performance, higher cost)<\/li>\n\n<li>Aluminum coil (lower cost)<\/li><\/ul><h3 class=\"wp-block-heading\"><strong>4. Design &amp; Insulation<\/strong><\/h3><p>Dry-type epoxy resin, cast resin, and special insulation for medical-grade transformers can affect price.<\/p><h3 class=\"wp-block-heading\"><strong>Typical Price Range (for reference):<\/strong><\/h3><ul class=\"wp-block-list\"><li>Small 1\u20135 kVA ISO transformer: <strong>$50\u2013$150<\/strong><\/li>\n\n<li>Medium 10\u201330 kVA: <strong>$200\u2013$600<\/strong><\/li>\n\n<li>Industrial 50\u2013100 kVA: <strong>$800\u2013$2,000<\/strong><\/li>\n\n<li>Large 3 phase isolation transformer: <strong>$1,000\u2013$5,000+<\/strong><\/li><\/ul><p><em>For exact quotations, it\u2019s always recommended to contact a professional manufacturer.<\/em><\/p><h2 class=\"wp-block-heading\"><strong>How to Choose the Right Isolation Transformer<\/strong><\/h2><p><strong>\u2714 Determine your load capacity (kW or kVA)<\/strong><\/p><p><strong>\u2714 Choose single-phase or three-phase<\/strong><\/p><p><strong>\u2714 Confirm input\/output voltage<\/strong><\/p><p><strong>\u2714 Consider noise level, environment, and insulation<\/strong><\/p><p><strong>\u2714 Select copper or aluminum windings<\/strong><\/p><p><strong>\u2714 Ensure certifications (CE, ISO, UL if required)<\/strong><\/p><p>A reliable <strong>isolation transformer manufacturer<\/strong> can provide customized solutions based on your equipment and application.<\/p><h2 class=\"wp-block-heading\"><strong>Conclusion<\/strong><\/h2><p>Isolation transformers are essential for ensuring safety, clean power, and stable operation of electrical equipment. Whether you need a <strong>single phase isolation transformer<\/strong> for IT equipment or a <strong>3 phase isolation transformer<\/strong> for industrial loads, choosing the right ISO transformer will significantly improve performance and reliability.<\/p><p>For businesses looking for stable power solutions with factory pricing, working directly with a professional isolation transformer manufacturer ensures the best value, performance, and long-term support.<\/p><h2 class=\"wp-block-heading\">FAQ<\/h2><p><strong>A\uff1aIs an isolation transformer the same as a step-up\/step-down transformer?<\/strong><\/p><p>Q: No.<br>A step-up\/down transformer changes voltage levels.<br>An isolation transformer primarily provides <strong>galvanic isolation<\/strong>, though it can also adjust voltage if designed to.<\/p><p><strong>A: Are isolation transformers expensive?<\/strong><\/p><p>Q: They cost more than auto transformers due to:<\/p><p>Double-winding structure<br>Insulation materials<br>Safety features<\/p><p><strong>A: Do isolation transformers save energy?<\/strong><\/p><p>Q: Isolation transformers are not for energy saving. They are for <strong>safety, stability, and noise reduction<\/strong>.<\/p><p><\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1da7333 elementor-widget elementor-widget-wd_text_block\" data-id=\"1da7333\" 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-9bdac3b wd-width-100 elementor-widget elementor-widget-wd_products\" data-id=\"9bdac3b\" 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\" 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src=\"https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/10\/TC-100va-5Kva-Portable-Small-Step-Up-And-Down-Voltage-Converter-110v-To-220v-Transformer.webp\" class=\"attachment-large size-large\" alt=\"TC 100va-5Kva Portable Small Step Up And Down Voltage Converter 110v To 220v Transformer\" srcset=\"https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/10\/TC-100va-5Kva-Portable-Small-Step-Up-And-Down-Voltage-Converter-110v-To-220v-Transformer.webp 800w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/10\/TC-100va-5Kva-Portable-Small-Step-Up-And-Down-Voltage-Converter-110v-To-220v-Transformer-300x300.webp 300w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/10\/TC-100va-5Kva-Portable-Small-Step-Up-And-Down-Voltage-Converter-110v-To-220v-Transformer-150x150.webp 150w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/10\/TC-100va-5Kva-Portable-Small-Step-Up-And-Down-Voltage-Converter-110v-To-220v-Transformer-768x768.webp 768w, 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230V 50Hz to 110V 60Hz\" srcset=\"https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/10\/Step-Down-Transformer-230V-50Hz-to-110V-60Hz.webp 800w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/10\/Step-Down-Transformer-230V-50Hz-to-110V-60Hz-300x300.webp 300w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/10\/Step-Down-Transformer-230V-50Hz-to-110V-60Hz-150x150.webp 150w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/10\/Step-Down-Transformer-230V-50Hz-to-110V-60Hz-768x768.webp 768w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/10\/Step-Down-Transformer-230V-50Hz-to-110V-60Hz-12x12.webp 12w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/10\/Step-Down-Transformer-230V-50Hz-to-110V-60Hz-430x430.webp 430w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/10\/Step-Down-Transformer-230V-50Hz-to-110V-60Hz-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\/fr\/product\/step-up-and-down-voltage-converter-110v-to-220v-transformer\/\">TC 100va-5Kva Portable Small Step Up And Down Voltage Converter 110v To 220v Transformer<\/a><\/h3>\t\t\t\t<div class=\"wd-product-cats\">\n\t\t\t<a href=\"https:\/\/www.tronkiele.com\/fr\/product-category\/low-voltage-transformer\/\" rel=\"tag\">Low Voltage Transformer<\/a>, <a href=\"https:\/\/www.tronkiele.com\/fr\/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\t<p data-start=\"588\" data-end=\"927\">The <strong data-start=\"592\" data-end=\"649\">TC Series Portable Step Up and Down Voltage Converter<\/strong> is designed for users who need to operate electrical appliances with different voltage standards. This reliable <strong data-start=\"762\" data-end=\"790\">110V to 220V transformer<\/strong> efficiently converts power between 110V\u2013120V and 220V\u2013240V, ensuring safe and stable performance for your devices anywhere in the world.<\/p>\r\n<p data-start=\"929\" data-end=\"1005\">With its dual-core design, the <strong data-start=\"960\" data-end=\"986\">110 To 220 Transformer<\/strong> works both ways:<\/p>\r\n\r\n<ul>\r\n \t<li data-start=\"929\" data-end=\"1005\">Converts 110V to 220V (step-up)<\/li>\r\n \t<li data-start=\"929\" data-end=\"1005\">Converts 220V to 110V (step-down)<\/li>\r\n<\/ul>\r\n<p data-start=\"1087\" data-end=\"1317\">Simply select the correct input voltage for your region using the built-in voltage selector switch \u2014 available options: <strong data-start=\"1207\" data-end=\"1236\">110V \/ 220V \/ 230V \/ 240V<\/strong>. The corresponding output provides clean and stable AC power for your equipment.<\/p>\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\/fr\/product\/step-up-and-down-voltage-converter-110v-to-220v-transformer\/\"\n\t\t\t\tclass=\"open-quick-view quick-view-button\"\n\t\t\t\trel=\"nofollow\"\n\t\t\t\tdata-id=\"22072\"\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\/fr\/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\/fr\/product\/single-phase-lighting-step-down-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\/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\/fr\/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\/fr\/product-category\/low-voltage-transformer\/\" rel=\"tag\">Low Voltage Transformer<\/a>, <a href=\"https:\/\/www.tronkiele.com\/fr\/product-category\/low-voltage-transformer\/control-transformers\/\" rel=\"tag\">Control Transformers<\/a>, <a href=\"https:\/\/www.tronkiele.com\/fr\/product-category\/low-voltage-transformer\/isolation-transformer\/\" rel=\"tag\">Isolation Transformer<\/a>, <a href=\"https:\/\/www.tronkiele.com\/fr\/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\/fr\/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-21995 status-publish first 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=\"3\" 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\/fr\/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\/fr\/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\/fr\/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\/fr\/product-category\/low-voltage-transformer\/\" rel=\"tag\">Low Voltage Transformer<\/a>, <a href=\"https:\/\/www.tronkiele.com\/fr\/product-category\/low-voltage-transformer\/isolation-transformer\/\" rel=\"tag\">Isolation Transformer<\/a>, <a href=\"https:\/\/www.tronkiele.com\/fr\/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\/fr\/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\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-21946 status-publish instock 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=\"4\" data-id=\"21946\">\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\/fr\/product\/sg-three-phase-dry-type-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\/SG-10kva-1000kva-Three-Phase-Dry-Type-Isolation-Step-Up-Transformer.webp\" class=\"attachment-large size-large\" alt=\"SG 10kva-1000kva Three Phase Dry Type Isolation Step Up Transformer\" srcset=\"https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/SG-10kva-1000kva-Three-Phase-Dry-Type-Isolation-Step-Up-Transformer.webp 800w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/SG-10kva-1000kva-Three-Phase-Dry-Type-Isolation-Step-Up-Transformer-300x300.webp 300w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/SG-10kva-1000kva-Three-Phase-Dry-Type-Isolation-Step-Up-Transformer-150x150.webp 150w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/SG-10kva-1000kva-Three-Phase-Dry-Type-Isolation-Step-Up-Transformer-768x768.webp 768w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/SG-10kva-1000kva-Three-Phase-Dry-Type-Isolation-Step-Up-Transformer-12x12.webp 12w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/SG-10kva-1000kva-Three-Phase-Dry-Type-Isolation-Step-Up-Transformer-430x430.webp 430w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/SG-10kva-1000kva-Three-Phase-Dry-Type-Isolation-Step-Up-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\/fr\/product\/sg-three-phase-dry-type-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\/SG-10kva-1000kva-Three-Phase-Dry-Type-Isolation-Step-Down-Transformer.webp\" class=\"attachment-large size-large\" alt=\"SG 10kva-1000kva Three Phase Dry Type Isolation Step Down Transformer\" srcset=\"https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/SG-10kva-1000kva-Three-Phase-Dry-Type-Isolation-Step-Down-Transformer.webp 800w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/SG-10kva-1000kva-Three-Phase-Dry-Type-Isolation-Step-Down-Transformer-300x300.webp 300w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/SG-10kva-1000kva-Three-Phase-Dry-Type-Isolation-Step-Down-Transformer-150x150.webp 150w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/SG-10kva-1000kva-Three-Phase-Dry-Type-Isolation-Step-Down-Transformer-768x768.webp 768w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/SG-10kva-1000kva-Three-Phase-Dry-Type-Isolation-Step-Down-Transformer-12x12.webp 12w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/SG-10kva-1000kva-Three-Phase-Dry-Type-Isolation-Step-Down-Transformer-430x430.webp 430w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/SG-10kva-1000kva-Three-Phase-Dry-Type-Isolation-Step-Down-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\/fr\/product\/sg-three-phase-dry-type-isolation-transformer\/\">SG 10kva-1000kva Three Phase Dry Type Isolation Step Down Transformer<\/a><\/h3>\t\t\t\t<div class=\"wd-product-cats\">\n\t\t\t<a href=\"https:\/\/www.tronkiele.com\/fr\/product-category\/low-voltage-transformer\/\" rel=\"tag\">Low Voltage Transformer<\/a>, <a href=\"https:\/\/www.tronkiele.com\/fr\/product-category\/low-voltage-transformer\/isolation-transformer\/\" rel=\"tag\">Isolation Transformer<\/a>, <a href=\"https:\/\/www.tronkiele.com\/fr\/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 SG series three-phase dry type isolation transformer is a high-performance power solution engineered for AC 50 Hz\u201360 Hz circuits up to 660 V. Designed for industrial production lines, data centers, precision machine tools, medical equipment, and imported critical devices, it provides electrical isolation, stable voltage conversion, and superior noise suppression.\r\n\r\nWith a capacity range of 10 kVA to 1000 kVA, this transformer meets and exceeds international standards including IEC 439 and GB 5226, delivering dependable power where safety and efficiency are paramount.\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\/fr\/product\/sg-three-phase-dry-type-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=\"21946\"\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>Dans les syst\u00e8mes \u00e9lectriques modernes, la s\u00e9curit\u00e9 et la qualit\u00e9 de l'\u00e9nergie sont deux facteurs critiques qui ne peuvent \u00eatre ignor\u00e9s. L'un des facteurs les plus<\/p>","protected":false},"author":1,"featured_media":22330,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[93],"tags":[],"class_list":["post-22321","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-transformer"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What Is an Isolation Transformer? 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