{"id":22083,"date":"2025-10-15T05:53:56","date_gmt":"2025-10-15T05:53:56","guid":{"rendered":"https:\/\/www.tronkiele.com\/?p=22083"},"modified":"2025-10-15T07:07:57","modified_gmt":"2025-10-15T07:07:57","slug":"control-transformer","status":"publish","type":"post","link":"https:\/\/www.tronkiele.com\/fr\/control-transformer\/","title":{"rendered":"Qu'est-ce qu'un transformateur de contr\u00f4le ? Un guide complet pour les applications industrielles"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"22083\" class=\"elementor elementor-22083\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"wd-negative-gap elementor-element elementor-element-17548606 e-flex e-con-boxed e-con e-parent\" data-id=\"17548606\" 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-a27e3d3 color-scheme-inherit text-left elementor-widget elementor-widget-text-editor\" data-id=\"a27e3d3\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\"><p>In today\u2019s modern electrical systems, maintaining <strong>safe, stable, and interference-free power<\/strong> is crucial. One small but vital component that makes this possible is the <strong><a href=\"\/product-category\/low-voltage-transformer\/control-transformers\/\"><mark class=\"has-inline-color\" style=\"background-color: rgba(0, 0, 0, 0); color: #0802ff;\">control transformer<\/mark><\/a><\/strong> \u2014 a compact yet powerful device designed to deliver stable voltage to control circuits in industrial and commercial applications.<\/p><p>Commonly used in <strong>machine tools, automation equipment, lighting systems, and signal circuits<\/strong>, a <strong>control transformer<\/strong> ensures electrical devices operate safely and efficiently by providing the precise voltage required by control components.<\/p><p>As a <strong>trusted manufacturer of industrial transformers<\/strong>, <strong>ZHENGXI<\/strong> specializes in producing <strong>high-performance control transformers<\/strong> that meet the needs of demanding electrical environments around the world.<\/p><h3 class=\"wp-block-heading\"><strong>What is a Control Transformer?<\/strong><\/h3><p>A <strong>control transformer<\/strong>, also known as a <strong>control power transformer<\/strong>, is a <strong><a href=\"https:\/\/www.tronkiele.com\/product-category\/power-transformer\/dry-transformer\/\"><mark class=\"has-inline-color\" style=\"background-color: rgba(0, 0, 0, 0); color: #0802ff;\">dry-type transformer<\/mark><\/a><\/strong> that provides a stable and reliable voltage for electrical control circuits, signal lights, relays, contactors, and other low-power control devices.<\/p><p>It typically operates at <strong>AC 50Hz or 60Hz<\/strong> with rated voltages up to <strong>1000V<\/strong>, and is designed for <strong>continuous operation<\/strong> under full load conditions.<\/p><p>Most <strong>industrial control transformers<\/strong> function as <strong>step-down transformers<\/strong> \u2014 for example, converting <strong>380V to 36V<\/strong> or <strong>220V to 24V<\/strong> \u2014 ensuring that operators can safely control machinery without exposure to high voltage.<\/p><p>In essence, a control transformer not only adjusts voltage levels but also provides <strong>electrical isolation<\/strong>, <strong>voltage stability<\/strong>, and <strong>noise suppression<\/strong>, making it indispensable in modern automation and control systems.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone wp-image-22030 size-full\" src=\"https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Sg-8kVA-8000va-415V-400V-380V-Three-Phase-Dry-Type-Isolation-Control-Transformer.webp\" alt=\"Sg-8kVA 8000va 415V 400V 380V Three Phase Dry Type Isolation Control Transformer\" width=\"800\" height=\"800\" 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\" \/><\/p><h3 class=\"wp-block-heading\"><strong>How Does a Control Transformer Work?<\/strong><\/h3><p>The <strong>working principle<\/strong> of a control transformer is based on <strong>electromagnetic induction<\/strong>, similar to that of a standard power transformer.<\/p><p>It is composed of three main parts:<\/p><ul class=\"wp-block-list\"><li><strong>Primary Coil:<\/strong> Connected to the input power source.<\/li><li><strong>Secondary Coil:<\/strong> Provides the transformed output voltage.<\/li><li><strong>Iron Core:<\/strong> Forms a magnetic path linking both coils.<\/li><\/ul><p>When alternating current (AC) flows through the primary winding, a <strong>changing magnetic field<\/strong> is generated within the iron core. This induces an <strong>electromotive force (EMF)<\/strong> in the secondary winding, producing the required output voltage.<\/p><p>The <strong>voltage ratio<\/strong> between the coils is determined by the <strong>turns ratio<\/strong> of the windings.<br \/>For example:<br \/>If the primary has 500 turns and the secondary has 250 turns, and the input voltage is 220V, then the output voltage will be approximately 110V.<\/p><p>This simple but robust design allows <strong>control transformers<\/strong> to provide <strong>stable and interference-free control voltage<\/strong>, protecting sensitive circuits from fluctuations and electrical noise.<\/p><h3 class=\"wp-block-heading\"><strong>Main Functions of a Control Transformer<\/strong><\/h3><p>A <strong>control transformer<\/strong> serves several critical roles in electrical and automation systems:<\/p><ol class=\"wp-block-list\"><li><strong>Voltage Conversion<\/strong><br \/>Converts high voltage into lower, safer voltages required by control circuits, lighting, and signaling equipment (e.g., 380V \u2192 36V).<\/li><li><strong>Isolation Protection<\/strong><br \/>Electrically separates the primary and secondary circuits to prevent electric shock and enhance operator safety.<\/li><li><strong>Voltage Stability<\/strong><br \/>Maintains a constant output voltage despite input fluctuations or load changes, ensuring stable control performance.<\/li><li><strong>Noise and Interference Reduction<\/strong><br \/>Reduces electromagnetic interference (EMI), improving the performance and lifespan of sensitive control devices.<\/li><li><strong>Energy Efficiency<\/strong><br \/>Designed for low losses and minimal heat generation, <strong>industrial control transformers<\/strong> offer long-lasting and energy-efficient operation.<\/li><\/ol><h3 class=\"wp-block-heading\"><strong>Typical Applications of Control Transformers<\/strong><\/h3><p><strong>Control transformers<\/strong> are widely used in industrial and commercial electrical systems, including:<\/p><ul class=\"wp-block-list\"><li>Machine tools and CNC machinery<\/li><li>Industrial automation systems<\/li><li>HVAC and air-conditioning control panels<\/li><li>Lighting and signal circuits<\/li><li>Electrical test benches<\/li><li>Distribution boxes and control cabinets<\/li><\/ul><p>For instance, in a <strong>CNC lathe<\/strong>, a <strong>380V\/36V control transformer<\/strong> supplies a low and safe voltage to control circuits \u2014 protecting operators while ensuring smooth machine control.<\/p><h3 class=\"wp-block-heading\"><strong>Control Transformer vs Isolation Transformer<\/strong><\/h3><p>Although <strong>control transformers<\/strong> and <strong>isolation transformers<\/strong> share similar structural features, their purposes differ significantly:<\/p><figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<thead>\n<tr>\n<th>Feature<\/th>\n<th>Control Transformer<\/th>\n<th>Isolation Transformer<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Main Function<\/strong><\/td>\n<td>Provides stable voltage for control circuits<\/td>\n<td>Ensures electrical isolation for safety<\/td>\n<\/tr>\n<tr>\n<td><strong>Application<\/strong><\/td>\n<td>Used in machinery, lighting, and automation control<\/td>\n<td>Common in medical, testing, and repair environments<\/td>\n<\/tr>\n<tr>\n<td><strong>Load Type<\/strong><\/td>\n<td>Constant, low-power control loads<\/td>\n<td>General-purpose load isolation<\/td>\n<\/tr>\n<tr>\n<td><strong>Design Focus<\/strong><\/td>\n<td>Short-term overload capacity &amp; voltage regulation<\/td>\n<td>Complete electrical separation &amp; safety protection<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure><h3 class=\"wp-block-heading\"><strong>Why Choose ZHENGXI Control Transformers?<\/strong><\/h3><p>As a <strong>leading manufacturer of industrial control transformers<\/strong>, <strong>ZHENGXI<\/strong> designs and produces <strong>high-efficiency, low-loss transformers<\/strong> that comply with <strong>international safety standards<\/strong> and meet diverse application needs.<\/p><p><strong>Our advantages include:<\/strong><\/p><p>\u2705 <strong>High Efficiency:<\/strong> Low power loss and minimal heat buildup for continuous performance.<br \/>\u2705 <strong>Durable Design:<\/strong> Built with premium silicon steel sheets and 99.9% copper windings.<br \/>\u2705 <strong>Custom Voltage Options:<\/strong> Available in various voltage and capacity configurations.<br \/>\u2705 <strong>Reliable Safety:<\/strong> Excellent insulation performance and low electromagnetic interference.<br \/>\u2705 <strong>Global Certifications:<\/strong> CE, ISO9001, and RoHS certified for international compliance.<\/p><p>Whether you need a <strong>single-phase<\/strong> or <strong>three-phase control power transformer<\/strong>, ZHENGXI can deliver <strong>customized solutions<\/strong> that ensure stable performance in your specific industrial applications.<\/p><h3 class=\"wp-block-heading\"><strong>FAQ About Control Transformers<\/strong><\/h3><p><strong>Q1: What is the difference between a control transformer and a <a href=\"\/product-category\/power-transformer\/\"><mark class=\"has-inline-color\" style=\"background-color: rgba(0, 0, 0, 0); color: #0802ff;\">power transformer<\/mark><\/a>?<\/strong><br \/>A <strong>control transformer<\/strong> is optimized for small, consistent loads and stable secondary voltage, while a <strong>power transformer<\/strong> handles large-scale energy transmission and distribution.<\/p><p><strong>Q2: Can a control transformer be used as an isolation transformer?<\/strong><br \/>In some cases, yes. However, a <strong>control transformer<\/strong> focuses on voltage regulation and short-term overload performance rather than complete isolation.<\/p><p><strong>Q3: What are common voltage ratings for control transformers?<\/strong><br \/>Typical models include <strong>380V\/220V<\/strong>, <strong>380V\/110V<\/strong>, and <strong>220V\/36V<\/strong>, with custom options available from <strong>ZHENGXI<\/strong> to meet unique customer requirements.<\/p><p><strong>Q4: How long can a control transformer operate continuously?<\/strong><br \/><strong>ZHENGXI control transformers<\/strong> are designed for <strong>continuous duty<\/strong>, maintaining stable output under rated load for extended periods.<\/p><h3 class=\"wp-block-heading\"><strong>Conclusion<\/strong><\/h3><p>A <strong>control transformer<\/strong> is a critical component in modern <strong>industrial automation systems<\/strong>, ensuring safe, stable, and reliable operation of control circuits.<\/p><p>With decades of manufacturing expertise and a strong focus on quality and innovation, <strong>ZHENGXI<\/strong> provides dependable <strong>industrial control transformer<\/strong> solutions for customers worldwide.<\/p><p>\ud83d\udc49 <strong>Explore our full range of control transformers<\/strong> or <strong>request a custom model<\/strong> today to meet your specific industrial power needs.<\/p><p>\u00a0<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b97b480 elementor-widget elementor-widget-wd_text_block\" data-id=\"b97b480\" 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-939caf5 wd-width-100 elementor-widget elementor-widget-wd_blog\" data-id=\"939caf5\" 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=\"69ebb27000879\" 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\tSep\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\/fr\/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; 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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\/fr\/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\tSep\t\t\t\t<\/span>\n\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<a 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wd-fill\" href=\"https:\/\/www.tronkiele.com\/fr\/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\/fr\/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\/fr\/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-9f4a1b7 elementor-widget elementor-widget-wd_text_block\" data-id=\"9f4a1b7\" 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-5984c24 wd-width-100 elementor-widget elementor-widget-wd_products\" data-id=\"5984c24\" data-element_type=\"widget\" data-widget_type=\"wd_products.default\">\n\t\t\t\t<div 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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-22039 status-publish 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=\"1\" 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 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-22024 status-publish last 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=\"2\" 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\/fr\/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\/fr\/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\/fr\/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\/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\/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\/fr\/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-21986 status-publish first 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=\"3\" data-id=\"21986\">\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-dry-type-control-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\/Single-Phase-Dry-Type-Control-Isolation-Transformer-Manufacturer.webp\" class=\"attachment-large size-large\" alt=\"Single Phase Dry Type Control Isolation Transformer Manufacturer\" srcset=\"https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Single-Phase-Dry-Type-Control-Isolation-Transformer-Manufacturer.webp 800w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Single-Phase-Dry-Type-Control-Isolation-Transformer-Manufacturer-300x300.webp 300w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Single-Phase-Dry-Type-Control-Isolation-Transformer-Manufacturer-150x150.webp 150w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Single-Phase-Dry-Type-Control-Isolation-Transformer-Manufacturer-768x768.webp 768w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Single-Phase-Dry-Type-Control-Isolation-Transformer-Manufacturer-12x12.webp 12w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Single-Phase-Dry-Type-Control-Isolation-Transformer-Manufacturer-430x430.webp 430w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Single-Phase-Dry-Type-Control-Isolation-Transformer-Manufacturer-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-dry-type-control-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\/transformer-220v-to-110v.webp\" class=\"attachment-large size-large\" alt=\"transformer 220v to 110v\" srcset=\"https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/transformer-220v-to-110v.webp 800w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/transformer-220v-to-110v-300x300.webp 300w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/transformer-220v-to-110v-150x150.webp 150w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/transformer-220v-to-110v-768x768.webp 768w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/transformer-220v-to-110v-12x12.webp 12w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/transformer-220v-to-110v-430x430.webp 430w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/transformer-220v-to-110v-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-dry-type-control-isolation-transformer\/\">JBK 25va-5000va Single Phase Dry Type Machine Control Isolation Transformer 220v to 110v<\/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 <strong data-start=\"818\" data-end=\"832\">JBK series<\/strong> is a compact dry-type <strong data-start=\"855\" data-end=\"878\">control transformer<\/strong> designed for machine control and isolation in industrial panels. Typical use is <strong data-start=\"959\" data-end=\"976\">220 V \u2192 110 V<\/strong> control circuits for contactors, relays, PLCs and sensors. Built for low noise, high reliability and easy cabinet mounting, JBK protects control circuits from mains disturbances while simplifying wiring and maintenance.\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-dry-type-control-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=\"21986\"\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-21939 status-publish 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=\"4\" data-id=\"21939\">\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\/bk100va-5kva-single-phase-isolation-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\/single-phase-control-transformer.webp\" class=\"attachment-large size-large\" alt=\"single phase control transformer\" srcset=\"https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/single-phase-control-transformer.webp 800w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/single-phase-control-transformer-300x300.webp 300w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/single-phase-control-transformer-150x150.webp 150w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/single-phase-control-transformer-768x768.webp 768w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/single-phase-control-transformer-12x12.webp 12w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/single-phase-control-transformer-430x430.webp 430w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/single-phase-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\/fr\/product\/bk100va-5kva-single-phase-isolation-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\/Bk100va-5kva-Single-Phase-Isolation-Control-Power-Transformer.webp\" class=\"attachment-large size-large\" alt=\"Bk100va-5kva Single Phase Isolation Control Power Transformer\" srcset=\"https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Bk100va-5kva-Single-Phase-Isolation-Control-Power-Transformer.webp 800w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Bk100va-5kva-Single-Phase-Isolation-Control-Power-Transformer-300x300.webp 300w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Bk100va-5kva-Single-Phase-Isolation-Control-Power-Transformer-150x150.webp 150w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Bk100va-5kva-Single-Phase-Isolation-Control-Power-Transformer-768x768.webp 768w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Bk100va-5kva-Single-Phase-Isolation-Control-Power-Transformer-12x12.webp 12w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Bk100va-5kva-Single-Phase-Isolation-Control-Power-Transformer-430x430.webp 430w, https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Bk100va-5kva-Single-Phase-Isolation-Control-Power-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\/bk100va-5kva-single-phase-isolation-control-transformer\/\">Bk 100va-5kva Single Phase Isolation Control Power 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\/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\t<p data-start=\"749\" data-end=\"1124\">The <strong data-start=\"753\" data-end=\"766\">BK series<\/strong> single-phase isolation control power transformer (commonly called a <strong data-start=\"835\" data-end=\"853\">BK transformer<\/strong>) delivers stable, isolated control voltages for industrial and commercial equipment. Available from <strong data-start=\"954\" data-end=\"973\">100 VA to 5 kVA<\/strong>, the unit uses a thyristor (SCR) control module with feedback to provide precise closed-loop voltage regulation even when the input supply fluctuates.<\/p>\r\n<p data-start=\"1126\" data-end=\"1348\">This control transformer is built to international safety and efficiency standards and is perfect for CNC machines, PLCs, automation panels, lighting circuits, and other precision systems that need a stable control supply.<\/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\/bk100va-5kva-single-phase-isolation-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=\"21939\"\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 d'aujourd'hui, il est crucial de maintenir une alimentation s\u00fbre, stable et sans interf\u00e9rences. L'un des composants les plus petits mais les plus vitaux de ces syst\u00e8mes est l'alimentation \u00e9lectrique.<\/p>","protected":false},"author":1,"featured_media":22030,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[93],"tags":[],"class_list":["post-22083","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 a Control Transformer | Transformer Source Manufacturer - PINE-ZHENGXI<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.tronkiele.com\/fr\/control-transformer\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is a Control Transformer | Transformer Source Manufacturer - PINE-ZHENGXI\" \/>\n<meta property=\"og:description\" content=\"In today\u2019s modern electrical systems, maintaining safe, stable, and interference-free power is crucial. One small but vital component that makes\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.tronkiele.com\/fr\/control-transformer\/\" \/>\n<meta property=\"og:site_name\" content=\"PINE-ZHENGXI\" \/>\n<meta property=\"article:published_time\" content=\"2025-10-15T05:53:56+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-10-15T07:07:57+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.tronkiele.com\/wp-content\/uploads\/2025\/09\/Sg-8kVA-8000va-415V-400V-380V-Three-Phase-Dry-Type-Isolation-Control-Transformer.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"800\" \/>\n\t<meta property=\"og:image:height\" content=\"800\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"author\" content=\"TRONKI\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"TRONKI\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"8 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":[\"Article\",\"BlogPosting\"],\"@id\":\"https:\/\/www.tronkiele.com\/control-transformer\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.tronkiele.com\/control-transformer\/\"},\"author\":{\"name\":\"TRONKI\",\"@id\":\"https:\/\/www.tronkiele.com\/#\/schema\/person\/4cb742e1a580d7a81c864fb6632382e1\"},\"headline\":\"What is a Control Transformer? 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