{"id":31625,"date":"2026-10-12T13:21:13","date_gmt":"2026-10-12T05:21:13","guid":{"rendered":"https:\/\/www.cnspd.com\/?p=31625"},"modified":"2026-10-12T13:46:33","modified_gmt":"2026-10-12T05:46:33","slug":"solar-ats-vs-generator-ats-what-buyers-should-know","status":"publish","type":"post","link":"https:\/\/www.cnspd.com\/id\/solar-ats-vs-generator-ats\/","title":{"rendered":"Solar ATS vs Generator ATS: What Buyers Should Know"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"31625\" class=\"elementor elementor-31625\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-49e756e e-flex e-con-boxed e-con e-parent\" data-id=\"49e756e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8d9e16c elementor-widget elementor-widget-html\" data-id=\"8d9e16c\" data-element_type=\"widget\" data-e-type=\"widget\" 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tbody tr {\r\n    margin-bottom: 14px;\r\n    overflow: hidden;\r\n    background: #fff;\r\n    border: 1px solid var(--ly-line);\r\n    border-radius: 9px;\r\n  }\r\n\r\n  #leeyee-ats62 tbody td {\r\n    position: relative;\r\n    min-height: 46px;\r\n    padding: 12px 13px 12px 44%;\r\n    border-right: 0;\r\n    border-bottom: 1px solid #e2e8ee;\r\n  }\r\n\r\n  #leeyee-ats62 tbody td::before {\r\n    content: attr(data-label);\r\n    position: absolute;\r\n    top: 12px;\r\n    left: 13px;\r\n    width: 37%;\r\n    color: var(--ly-blue-dark);\r\n    font-size: 13px;\r\n    font-weight: 800;\r\n    line-height: 1.35;\r\n  }\r\n\r\n  #leeyee-ats62 tbody td:last-child {\r\n    border-bottom: 0;\r\n  }\r\n\r\n  #leeyee-ats62 .leeyee-about-btn-light.leeyee-site-popup-btn {\r\n    width: 100%;\r\n  }\r\n}\r\n\r\n@media (max-width: 430px) {\r\n  #leeyee-ats62 .ly-reading,\r\n  #leeyee-ats62 .ly-wide {\r\n    width: min(100% - 24px, 840px);\r\n  }\r\n\r\n  #leeyee-ats62 h2 {\r\n    font-size: 25px;\r\n  }\r\n\r\n  #leeyee-ats62 tbody td {\r\n    padding: 36px 13px 12px;\r\n  }\r\n\r\n  #leeyee-ats62 tbody td::before {\r\n    top: 10px;\r\n    width: calc(100% - 26px);\r\n  }\r\n}\r\n<\/style>\r\n\r\n<article id=\"leeyee-ats62\">\r\n\r\n  <div class=\"ly-reading\">\r\n\r\n    <section class=\"ly-intro\">\r\n      <span class=\"ly-kicker\">ATS Application Comparison<\/span>\r\n\r\n      <p class=\"ly-lead\">\r\n        A <strong>solar ATS<\/strong> and a <strong>generator ATS<\/strong> are not automatically two different types of transfer switch. In many low-voltage systems, the ATS performs the same basic task: transferring a load between two acceptable AC sources. What changes most is the <strong>source architecture, control sequence and interface with the backup source<\/strong>.\r\n      <\/p>\r\n\r\n      <p>\r\n        A generator normally supplies AC power directly. A solar PV array does not. In a solar backup system, PV energy normally passes through an inverter or energy-storage system before a conventional AC ATS can use that source.\r\n        <a class=\"ly-source-ref\" href=\"#ref-1\">[1]<\/a>\r\n      <\/p>\r\n    <\/section>\r\n\r\n    <section class=\"ly-quick\">\r\n      <div id=\"ez-toc-container\" class=\"ez-toc-v2_0_87 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/id\/solar-ats-vs-generator-ats\/#quick-answer-solar-ats-vs-generator-ats\" >Quick answer: solar ATS vs generator ATS<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/id\/solar-ats-vs-generator-ats\/#generator-ats-the-usual-grid-to-generator-sequence\" >Generator ATS: the usual grid-to-generator sequence<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/id\/solar-ats-vs-generator-ats\/#solar-backup-changes-the-architecture-before-the-ats\" >Solar backup changes the architecture before the ATS<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/id\/solar-ats-vs-generator-ats\/#solar-ats-vs-generator-ats-similar-transfer-hardware-different-system-logic\" >Solar ATS vs generator ATS: similar transfer hardware, different system logic<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/id\/solar-ats-vs-generator-ats\/#who-actually-controls-the-transfer\" >Who actually controls the transfer?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/id\/solar-ats-vs-generator-ats\/#generator-start-signal-and-inverter-control-are-not-the-same-function\" >Generator start signal and inverter control are not the same function<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/id\/solar-ats-vs-generator-ats\/#can-the-same-ats-be-used-for-a-solar-inverter-and-a-generator\" >Can the same ATS be used for a solar inverter and a generator?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/id\/solar-ats-vs-generator-ats\/#does-every-solar-inverter-need-an-external-ats\" >Does every solar inverter need an external ATS?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/id\/solar-ats-vs-generator-ats\/#where-the-leeyee-compact-ats-fits\" >Where the LEEYEE compact ATS fits<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/id\/solar-ats-vs-generator-ats\/#before-ordering-send-these-system-details\" >Before ordering: send these system details<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/id\/solar-ats-vs-generator-ats\/#need-to-confirm-a-leeyee-ats-for-your-system\" >Need to confirm a LEEYEE ATS for your system?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/id\/solar-ats-vs-generator-ats\/#faq\" >FAQ<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/id\/solar-ats-vs-generator-ats\/#confirm-the-system-before-fixing-the-ats-model\" >Confirm the system before fixing the ATS model<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/id\/solar-ats-vs-generator-ats\/#references\" >References<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"quick-answer-solar-ats-vs-generator-ats\"><\/span>Quick answer: solar ATS vs generator ATS<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n      <p>\r\n        <strong>The ATS hardware may be similar, while the surrounding system logic can be very different.<\/strong>\r\n        A grid-generator system normally has to detect failure of the preferred source, start or enable the generator, verify that generator AC is acceptable, and then transfer the load. In a solar or battery-backup system, an inverter or ESS may already manage source availability and may also participate in the transfer decision.\r\n        <a class=\"ly-source-ref\" href=\"#ref-2\">[2]<\/a>\r\n        <a class=\"ly-source-ref\" href=\"#ref-3\">[3]<\/a>\r\n      <\/p>\r\n\r\n      <p class=\"ly-keyline\">\r\n        Buyer meaning: do not select an ATS only by asking for a \u201csolar ATS\u201d or a \u201cgenerator ATS.\u201d First define the two AC sources, voltage, phase, pole requirement, load current and control sequence.\r\n      <\/p>\r\n    <\/section>\r\n\r\n    <p class=\"ly-table-note\">\r\n      The most useful comparison is what reaches the ATS, what must happen before transfer, and which device controls the sequence.\r\n    <\/p>\r\n\r\n    <div class=\"ly-table-wrap\">\r\n      <table>\r\n        <thead>\r\n          <tr>\r\n            <th>Decision point<\/th>\r\n            <th>Solar \/ inverter backup<\/th>\r\n            <th>Generator backup<\/th>\r\n          <\/tr>\r\n        <\/thead>\r\n        <tbody>\r\n          <tr>\r\n            <td data-label=\"Decision point\">Source seen by a typical AC ATS<\/td>\r\n            <td data-label=\"Solar \/ inverter backup\">Usable inverter or ESS AC output<\/td>\r\n            <td data-label=\"Generator backup\">Generator AC output<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td data-label=\"Decision point\">Raw PV DC switched by normal AC ATS?<\/td>\r\n            <td data-label=\"Solar \/ inverter backup\">No \u2014 not by an AC-only ATS<\/td>\r\n            <td data-label=\"Generator backup\">Not applicable<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td data-label=\"Decision point\">Typical control issue<\/td>\r\n            <td data-label=\"Solar \/ inverter backup\">Inverter \/ ESS coordination<\/td>\r\n            <td data-label=\"Generator backup\">Generator start and source-ready logic<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td data-label=\"Decision point\">External ATS always required?<\/td>\r\n            <td data-label=\"Solar \/ inverter backup\">No \u2014 depends on inverter architecture<\/td>\r\n            <td data-label=\"Generator backup\">Depends on system architecture<\/td>\r\n          <\/tr>\r\n          <tr>\r\n            <td data-label=\"Decision point\">Main ATS selection basis<\/td>\r\n            <td data-label=\"Solar \/ inverter backup\">Voltage, phase, poles, current and control interface<\/td>\r\n            <td data-label=\"Generator backup\">Voltage, phase, poles, current and control interface<\/td>\r\n          <\/tr>\r\n        <\/tbody>\r\n      <\/table>\r\n    <\/div>\r\n\r\n    <p class=\"ly-procurement-line\">\r\n      \u201cSolar\u201d and \u201cgenerator\u201d describe the application. They do not provide enough information to approve an ATS model.\r\n    <\/p>\r\n\r\n    <h2><span class=\"ez-toc-section\" id=\"generator-ats-the-usual-grid-to-generator-sequence\"><\/span>Generator ATS: the usual grid-to-generator sequence<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n    <p>\r\n      In a conventional standby arrangement, the utility and generator are the two AC sources feeding the transfer system. The controller monitors source conditions and transfers the load only after the alternate source satisfies the configured acceptance conditions.\r\n      <a class=\"ly-source-ref\" href=\"#ref-2\">[2]<\/a>\r\n    <\/p>\r\n\r\n  <\/div>\r\n\r\n  <div class=\"ly-wide\">\r\n    <figure>\r\n      <img fetchpriority=\"high\"\r\n        class=\"ly-figure-image\"\r\n        src=\"https:\/\/www.cnspd.com\/wp-content\/uploads\/2026\/09\/grid-generator-ats-system-diagram.webp\"\r\n        alt=\"Grid and generator automatic transfer switch system diagram showing utility power, generator, ATS and load\"\r\n        width=\"1448\"\r\n        height=\"1086\"\r\n        loading=\"eager\"\r\n        decoding=\"async\">\r\n      <figcaption>\r\n        Typical grid-generator ATS architecture. The generator must become a usable AC source before transfer. Exact sensing thresholds and timing depend on the selected equipment and project design.\r\n      <\/figcaption>\r\n    <\/figure>\r\n  <\/div>\r\n\r\n  <div class=\"ly-reading\">\r\n\r\n    <ol class=\"ly-sequence\">\r\n      <li><strong>Normal source is monitored.<\/strong> The ATS or associated controller checks the preferred AC source.<\/li>\r\n      <li><strong>A source failure is detected.<\/strong> The controller applies its configured detection and delay logic.<\/li>\r\n      <li><strong>The generator is started where required.<\/strong> The start interface must match the generator controller.<\/li>\r\n      <li><strong>The alternate source is verified.<\/strong> Engine start does not automatically mean the electrical source is ready.<\/li>\r\n      <li><strong>The load is transferred.<\/strong> Transfer and retransfer logic remains project-specific.<\/li>\r\n    <\/ol>\r\n\r\n    <h2><span class=\"ez-toc-section\" id=\"solar-backup-changes-the-architecture-before-the-ats\"><\/span>Solar backup changes the architecture before the ATS<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n    <p>\r\n      A PV array produces DC power. A conventional AC transfer arrangement should therefore not be visualised as \u201cPV panel \u2192 ATS \u2192 AC load.\u201d The inverter or ESS converts and manages the energy before a usable AC source reaches an external AC transfer switch.\r\n    <\/p>\r\n\r\n    <p>\r\n      IEC 60947-6-1 defines transfer switching equipment around the function of transferring loads between power sources; it does not establish a universal \u201csolar ATS\u201d product category with one fixed solar control architecture.\r\n      <a class=\"ly-source-ref\" href=\"#ref-1\">[1]<\/a>\r\n    <\/p>\r\n\r\n  <\/div>\r\n\r\n  <div class=\"ly-wide\">\r\n    <figure>\r\n      <img loading=\"lazy\"\r\n        class=\"ly-figure-image\"\r\n        src=\"https:\/\/www.cnspd.com\/wp-content\/uploads\/2026\/09\/grid-solar-inverter-ats-system-diagram.webp\"\r\n        alt=\"Solar inverter and grid automatic transfer switch diagram showing PV, battery, inverter AC output, ATS and load\"\r\n        width=\"1448\"\r\n        height=\"1086\"\r\n        loading=\"lazy\"\r\n        decoding=\"async\">\r\n      <figcaption>\r\n        Solar \/ ESS backup architecture. Where an external AC ATS is used, the ATS normally works with usable AC sources such as utility power and inverter backup AC, not raw PV-string DC.\r\n      <\/figcaption>\r\n    <\/figure>\r\n  <\/div>\r\n\r\n  <div class=\"ly-reading\">\r\n\r\n    <div class=\"ly-callout ly-warning\">\r\n      <h3>Do not confuse AC transfer with PV DC switching<\/h3>\r\n      <p>\r\n        A normal AC ATS must not be assumed suitable for switching raw PV-string DC. Use switching equipment specifically rated and documented for the actual AC or DC circuit.\r\n      <\/p>\r\n    <\/div>\r\n\r\n    <h2><span class=\"ez-toc-section\" id=\"solar-ats-vs-generator-ats-similar-transfer-hardware-different-system-logic\"><\/span>Solar ATS vs generator ATS: similar transfer hardware, different system logic<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n    <div class=\"ly-two-col\">\r\n      <div class=\"ly-mini\">\r\n        <h3>Power path<\/h3>\r\n        <p>\r\n          The ATS transfers the load between approved AC sources. Voltage, current, phase, poles and transition method must match the project.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"ly-mini\">\r\n        <h3>Control path<\/h3>\r\n        <p>\r\n          The control system decides whether a source is usable, whether another source must start, which source has priority, and when transfer occurs.\r\n        <\/p>\r\n      <\/div>\r\n    <\/div>\r\n\r\n  <\/div>\r\n\r\n  <div class=\"ly-wide\">\r\n    <figure>\r\n      <img loading=\"lazy\"\r\n        class=\"ly-figure-image\"\r\n        src=\"https:\/\/www.cnspd.com\/wp-content\/uploads\/2026\/09\/solar-ats-vs-generator-ats-comparison.webp\"\r\n        alt=\"Solar ATS vs generator ATS comparison showing similar AC transfer function but different system and control logic\"\r\n        width=\"1448\"\r\n        height=\"1086\"\r\n        loading=\"lazy\"\r\n        decoding=\"async\">\r\n      <figcaption>\r\n        The basic AC transfer function can be similar while source preparation, generator starting and inverter-control responsibilities remain different.\r\n      <\/figcaption>\r\n    <\/figure>\r\n  <\/div>\r\n\r\n  <div class=\"ly-reading\">\r\n\r\n    <h2><span class=\"ez-toc-section\" id=\"who-actually-controls-the-transfer\"><\/span>Who actually controls the transfer?<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n    <p>\r\n      Control responsibility depends on the architecture. It should not be assumed from the term \u201csolar ATS\u201d or \u201cgenerator ATS.\u201d\r\n    <\/p>\r\n\r\n    <div class=\"ly-controller-grid\">\r\n      <div class=\"ly-controller-item\">\r\n        <strong>ATS controller<\/strong>\r\n        <p>May monitor source conditions and perform the physical transfer between two AC sources.<\/p>\r\n      <\/div>\r\n\r\n      <div class=\"ly-controller-item\">\r\n        <strong>Generator controller<\/strong>\r\n        <p>Manages generator starting and generator-side operation. Its interface must be coordinated with the transfer system.<\/p>\r\n      <\/div>\r\n\r\n      <div class=\"ly-controller-item\">\r\n        <strong>Inverter \/ ESS controller<\/strong>\r\n        <p>May establish backup AC and manage battery or inverter operating logic.<\/p>\r\n      <\/div>\r\n\r\n      <div class=\"ly-controller-item\">\r\n        <strong>EMS or PLC<\/strong>\r\n        <p>May coordinate multiple sources in more complex hybrid systems.<\/p>\r\n      <\/div>\r\n    <\/div>\r\n\r\n    <div class=\"ly-callout ly-engineering\">\r\n      <h3>Important product boundary<\/h3>\r\n      <p>\r\n        A compact LEEYEE ATS should be understood primarily as the <strong>dual-source AC transfer device<\/strong>. Generator starting, battery SOC management, inverter energy management, EMS functions and PLC-level hybrid control are separate system functions unless the selected product and project documentation specifically confirm otherwise.\r\n      <\/p>\r\n    <\/div>\r\n\r\n    <h2><span class=\"ez-toc-section\" id=\"generator-start-signal-and-inverter-control-are-not-the-same-function\"><\/span>Generator start signal and inverter control are not the same function<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n    <p>\r\n      A generator may require a start or stop command before it can become an available source. A solar inverter manages a different set of functions and can use manufacturer-specific backup outputs, contacts or communication interfaces.\r\n    <\/p>\r\n\r\n    <p>\r\n      Therefore, a generator-start dry contact must not automatically be treated as a universal inverter-control interface. Terminal functions and control logic must be checked against the actual ATS, generator and inverter documentation.\r\n    <\/p>\r\n\r\n    <h2><span class=\"ez-toc-section\" id=\"can-the-same-ats-be-used-for-a-solar-inverter-and-a-generator\"><\/span>Can the same ATS be used for a solar inverter and a generator?<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n    <p>\r\n      <strong>Sometimes \u2014 if the electrical and control requirements match.<\/strong>\r\n    <\/p>\r\n\r\n    <ul class=\"ly-list\">\r\n      <li>Both ATS input sources must be within the documented voltage and frequency range.<\/li>\r\n      <li>The ATS current rating must suit the intended load.<\/li>\r\n      <li>Single-phase or three-phase configuration must match the system.<\/li>\r\n      <li>The required 2P, 3P or 4P arrangement must be confirmed.<\/li>\r\n      <li>Neutral switching and earthing must be defined for the real system.<\/li>\r\n      <li>The required transition method must be supported by the ATS.<\/li>\r\n      <li>Generator-start or remote-control interfaces must be compatible where required.<\/li>\r\n      <li>The inverter manufacturer must permit the proposed external ATS architecture.<\/li>\r\n    <\/ul>\r\n\r\n    <h2><span class=\"ez-toc-section\" id=\"does-every-solar-inverter-need-an-external-ats\"><\/span>Does every solar inverter need an external ATS?<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n    <p>\r\n      No. Some inverter and ESS platforms include backup switching functions or use manufacturer-specific transfer devices. Others can work with external switching equipment. Follow the actual inverter system documentation rather than automatically adding an ATS.\r\n      <a class=\"ly-source-ref\" href=\"#ref-3\">[3]<\/a>\r\n    <\/p>\r\n\r\n    <h2><span class=\"ez-toc-section\" id=\"where-the-leeyee-compact-ats-fits\"><\/span>Where the LEEYEE compact ATS fits<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n    <p>\r\n      The LEEYEE product shown below is a <strong>compact integrated dual-source automatic transfer switch<\/strong>. The actual product image shows compact 2P and 4P configurations, Auto \/ Manual operating positions, Source A \/ Source B indications and a load output arrangement.\r\n    <\/p>\r\n\r\n    <p>\r\n      This product format naturally matches conventional <strong>grid + generator<\/strong> dual-source applications. In a suitable solar backup project, the second source may instead be a compatible <strong>inverter backup AC output<\/strong>, provided the inverter manufacturer permits an external ATS and all electrical and control requirements match.\r\n    <\/p>\r\n\r\n  <\/div>\r\n\r\n  <div class=\"ly-wide\">\r\n    <figure>\r\n      <img loading=\"lazy\"\r\n        class=\"ly-figure-image ly-product-photo\"\r\n        src=\"https:\/\/www.cnspd.com\/wp-content\/uploads\/2026\/06\/2.png\"\r\n        alt=\"LEEYEE compact 2P and 4P automatic transfer switches for grid and generator backup applications\"\r\n        width=\"800\"\r\n        height=\"800\"\r\n        loading=\"lazy\"\r\n        decoding=\"async\">\r\n      <figcaption>\r\n        Actual LEEYEE compact ATS product. The image shows 2P and 4P dual-source configurations with Auto \/ Manual operation and source \/ load identification. Final suitability still depends on voltage, current, pole configuration and system control requirements.\r\n      <\/figcaption>\r\n    <\/figure>\r\n  <\/div>\r\n\r\n  <div class=\"ly-reading\">\r\n\r\n    <div class=\"ly-callout ly-scope\">\r\n      <h3>What this product should not be presented as<\/h3>\r\n      <p>\r\n        This compact ATS is not a PV-string DC switch, solar EMS, battery SOC controller, generator controller or large multi-source transfer cabinet. More complex closed-transition, bypass-isolation or multi-source architectures require separate engineering evaluation.\r\n      <\/p>\r\n    <\/div>\r\n\r\n    <section class=\"ly-checklist\">\r\n      <h2><span class=\"ez-toc-section\" id=\"before-ordering-send-these-system-details\"><\/span>Before ordering: send these system details<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n      <div class=\"ly-check-grid\">\r\n        <div class=\"ly-check-item\">Source A type and voltage<\/div>\r\n        <div class=\"ly-check-item\">Source B type and voltage<\/div>\r\n        <div class=\"ly-check-item\">System frequency<\/div>\r\n        <div class=\"ly-check-item\">Single-phase or three-phase<\/div>\r\n        <div class=\"ly-check-item\">Required 2P, 3P or 4P configuration<\/div>\r\n        <div class=\"ly-check-item\">Rated load current<\/div>\r\n        <div class=\"ly-check-item\">Load type<\/div>\r\n        <div class=\"ly-check-item\">Neutral and earthing arrangement<\/div>\r\n        <div class=\"ly-check-item\">Preferred source<\/div>\r\n        <div class=\"ly-check-item\">Required transfer sequence<\/div>\r\n        <div class=\"ly-check-item\">Generator start requirement, if applicable<\/div>\r\n        <div class=\"ly-check-item\">Inverter \/ ESS model, if applicable<\/div>\r\n      <\/div>\r\n    <\/section>\r\n\r\n    <section class=\"ly-cta\">\r\n      <h2><span class=\"ez-toc-section\" id=\"need-to-confirm-a-leeyee-ats-for-your-system\"><\/span>Need to confirm a LEEYEE ATS for your system?<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n      <p>\r\n        Send us your two AC sources, voltage, phase, required poles, load current and intended control sequence. For inverter applications, also provide the inverter or ESS model. For generator applications, provide the generator-controller interface where relevant.\r\n      <\/p>\r\n\r\n      <div class=\"ly-cta-actions\">\r\n        <button\r\n          type=\"button\"\r\n          class=\"leeyee-about-btn-light leeyee-site-popup-btn\"\r\n          aria-label=\"Share Your ATS System Details\">\r\n          <span class=\"w-btn-label\">Share Your ATS System Details<\/span>\r\n        <\/button>\r\n      <\/div>\r\n    <\/section>\r\n\r\n    <h2><span class=\"ez-toc-section\" id=\"faq\"><\/span>FAQ<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n    <div class=\"ly-faq\">\r\n\r\n      <div class=\"ly-faq-item\">\r\n        <h3>Is a solar ATS different from a generator ATS?<\/h3>\r\n        <p>\r\n          Not necessarily. The transfer hardware may be similar. The main difference is often the source architecture and control sequence around the ATS.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"ly-faq-item\">\r\n        <h3>Can a LEEYEE ATS work with a solar inverter?<\/h3>\r\n        <p>\r\n          It may be possible when the inverter provides a compatible AC backup output, permits an external ATS, and the ATS voltage, current, phase, poles and control logic all match the project. Confirm the actual inverter documentation before selection.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"ly-faq-item\">\r\n        <h3>Can this ATS switch raw PV DC?<\/h3>\r\n        <p>\r\n          Do not assume so. The product discussed on this page is positioned as a low-voltage AC dual-source ATS. PV-string DC switching requires equipment specifically rated for the DC circuit.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"ly-faq-item\">\r\n        <h3>Does this ATS manage battery SOC?<\/h3>\r\n        <p>\r\n          Battery SOC management should normally be treated as an inverter, ESS or EMS function unless a specific ATS configuration is explicitly documented to provide that function.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"ly-faq-item\">\r\n        <h3>Can the ATS start a generator?<\/h3>\r\n        <p>\r\n          Generator-start capability depends on the selected ATS configuration and the generator-controller interface. Do not assume compatibility without checking the wiring and control documentation.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"ly-faq-item\">\r\n        <h3>Should I choose 2P or 4P?<\/h3>\r\n        <p>\r\n          That depends on the phase system, neutral arrangement, earthing design and project requirements. The product image shows both 2P and 4P configurations, but final pole selection must follow the actual system design.\r\n        <\/p>\r\n      <\/div>\r\n\r\n    <\/div>\r\n\r\n    <section class=\"ly-cta\">\r\n      <h2><span class=\"ez-toc-section\" id=\"confirm-the-system-before-fixing-the-ats-model\"><\/span>Confirm the system before fixing the ATS model<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n      <p>\r\n        A simple single-line diagram showing Source A, Source B, the ATS and the load is usually more useful than asking only for a \u201csolar ATS\u201d or \u201cgenerator ATS.\u201d\r\n      <\/p>\r\n\r\n      <div class=\"ly-cta-actions\">\r\n        <button\r\n          type=\"button\"\r\n          class=\"leeyee-about-btn-light leeyee-site-popup-btn\"\r\n          aria-label=\"Request ATS Configuration Review\">\r\n          <span class=\"w-btn-label\">Request ATS Configuration Review<\/span>\r\n        <\/button>\r\n      <\/div>\r\n    <\/section>\r\n\r\n    <section class=\"ly-references\">\r\n      <h2><span class=\"ez-toc-section\" id=\"references\"><\/span>References<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n      <ol>\r\n        <li id=\"ref-1\">\r\n          IEC \u2014 <em>IEC 60947-6-1:2026, Low-voltage switchgear and controlgear \u2013 Part 6-1: Multiple function equipment \u2013 Transfer switching equipment<\/em>.\r\n          <a href=\"https:\/\/webstore.iec.ch\/en\/publication\/90494\" target=\"_blank\" rel=\"noopener noreferrer\">Official IEC page<\/a>.\r\n        <\/li>\r\n\r\n        <li id=\"ref-2\">\r\n          Eaton \u2014 <em>Automatic Transfer Switches Fundamentals<\/em>. Technical guidance covering transfer-switch source monitoring, generator applications, transfer sequence and neutral-switching considerations.\r\n          <a href=\"https:\/\/www.eaton.com\/sg\/en-us\/products\/low-voltage-power-distribution-control-systems\/automatic-transfer-switches\/automatic-transfer-switch-fundamentals.html\" target=\"_blank\" rel=\"noopener noreferrer\">Eaton technical reference<\/a>.\r\n        <\/li>\r\n\r\n        <li id=\"ref-3\">\r\n          SMA Solar Technology AG \u2014 <em>Setting Parameters for Automatic Backup Operation<\/em>. Documentation describing inverter-based backup operation and automatic transfer switching coordination.\r\n          <a href=\"https:\/\/manuals.sma.de\/BU-SLCT-US-50\/en-US\/15929100811.html\" target=\"_blank\" rel=\"noopener noreferrer\">SMA documentation<\/a>.\r\n        <\/li>\r\n      <\/ol>\r\n    <\/section>\r\n\r\n    <p class=\"ly-final-note\">\r\n      The diagrams on this page explain common system concepts only. Final ATS selection, wiring, neutral treatment, source coordination and control interfaces must be verified against the actual LEEYEE ATS specification, inverter or generator documentation and project requirements.\r\n    <\/p>\r\n\r\n  <\/div>\r\n\r\n<\/article>\r\n\r\n<script>\r\ndocument.addEventListener('DOMContentLoaded', function () {\r\n  var aboutPopupButtons = document.querySelectorAll('.leeyee-site-popup-btn');\r\n\r\n  aboutPopupButtons.forEach(function (button) {\r\n    button.addEventListener('click', function () {\r\n      var realPopupTrigger = document.querySelector(\r\n        '.w-popup.ush_popup_1 .w-popup-trigger'\r\n      );\r\n\r\n      if (realPopupTrigger) {\r\n        realPopupTrigger.click();\r\n      } else {\r\n        window.open(\r\n          'https:\/\/www.cnspd.com\/contact\/',\r\n          '_blank',\r\n          'noopener'\r\n        );\r\n      }\r\n    });\r\n  });\r\n});\r\n<\/script>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>ATS Application ComparisonA solar ATS and a generator ATS are not automatically two different types of transfer switch. In many low-voltage systems, the ATS performs the same basic task: transferring a load between two acceptable AC sources. What changes most is the source architecture, control sequence and interface with the backup source. A generator normally&#8230;<\/p>","protected":false},"author":18,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[490,1,422],"tags":[],"class_list":["post-31625","post","type-post","status-publish","format-standard","hentry","category-isolator-switching","category-news","category-industry-news"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Solar ATS vs Generator ATS: Inverter, Generator &amp; Control Differences<\/title>\n<meta name=\"description\" content=\"Compare solar ATS and generator ATS systems, understand inverter and generator control differences, and learn what buyers should confirm before selecting a compact dual-source ATS.\" \/>\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.cnspd.com\/id\/solar-ats-vs-generator-ats\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Solar ATS vs Generator ATS: Inverter, Generator &amp; Control Differences\" \/>\n<meta property=\"og:description\" content=\"Compare solar ATS and generator ATS systems, understand inverter and generator control differences, and learn what buyers should confirm before selecting a compact dual-source ATS.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.cnspd.com\/id\/solar-ats-vs-generator-ats\/\" \/>\n<meta property=\"og:site_name\" content=\"Surge Protector, Surge Arrestor, Isolating Switch - 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