{"id":31764,"date":"2026-10-24T15:17:23","date_gmt":"2026-10-24T07:17:23","guid":{"rendered":"https:\/\/www.cnspd.com\/?p=31764"},"modified":"2026-10-24T15:17:56","modified_gmt":"2026-10-24T07:17:56","slug":"ats-supplier-audit-checklist-for-bulk-orders-10-checks-before-approval","status":"publish","type":"post","link":"https:\/\/www.cnspd.com\/de\/ats-supplier-audit-checklist\/","title":{"rendered":"ATS Supplier Audit Checklist for Bulk Orders: 10 Checks Before Approval"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"31764\" class=\"elementor elementor-31764\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3580937 e-flex e-con-boxed e-con e-parent\" data-id=\"3580937\" 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-4e785f9 elementor-widget elementor-widget-html\" data-id=\"4e785f9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<style>\r\n\/* =========================================================\r\n   LEEYEE B2B Technical Article\r\n   Page 79 \u2014 ATS Supplier Audit Checklist for Bulk Orders\r\n   Primary intent: ATS supplier audit \/ supplier evaluation\r\n   WordPress Custom HTML\r\n   ========================================================= *\/\r\n\r\n.leeyee-p79 {\r\n  --ly-blue: #004898;\r\n  --ly-blue-dark: #003768;\r\n  --ly-blue-soft: #f7fbff;\r\n  --ly-blue-pale: #eef5ff;\r\n  --ly-text: #293844;\r\n  --ly-heading: #172733;\r\n  --ly-muted: #5f6e79;\r\n  --ly-border: #dbe5ec;\r\n  --ly-green: #23764c;\r\n  --ly-green-bg: #f1f8f4;\r\n  --ly-amber: #9a6c12;\r\n  --ly-amber-bg: #fff9e9;\r\n  --ly-red: #9d3939;\r\n  --ly-red-bg: #fff5f5;\r\n  width: 100%;\r\n  max-width: 840px;\r\n  margin: 0 auto;\r\n  padding: 8px 20px 52px;\r\n  color: var(--ly-text);\r\n  font-size: 17px;\r\n  line-height: 1.72;\r\n  box-sizing: border-box;\r\n}\r\n\r\n.leeyee-p79 *,\r\n.leeyee-p79 *::before,\r\n.leeyee-p79 *::after {\r\n  box-sizing: border-box;\r\n}\r\n\r\n.leeyee-p79 p {\r\n  margin: 0 0 18px;\r\n}\r\n\r\n.leeyee-p79 strong {\r\n  color: var(--ly-heading);\r\n}\r\n\r\n.leeyee-p79 h2 {\r\n  margin: 54px 0 20px;\r\n  color: var(--ly-heading);\r\n  font-size: 31px;\r\n  line-height: 1.25;\r\n  font-weight: 700;\r\n  letter-spacing: -0.01em;\r\n}\r\n\r\n.leeyee-p79 h3 {\r\n  margin: 32px 0 14px;\r\n  color: var(--ly-heading);\r\n  font-size: 23px;\r\n  line-height: 1.34;\r\n  font-weight: 700;\r\n}\r\n\r\n.leeyee-p79 ul,\r\n.leeyee-p79 ol {\r\n  margin: 12px 0 22px;\r\n  padding-left: 25px;\r\n}\r\n\r\n.leeyee-p79 li {\r\n  margin: 7px 0;\r\n}\r\n\r\n.leeyee-p79 a {\r\n  color: var(--ly-blue);\r\n  text-decoration: underline;\r\n  text-underline-offset: 2px;\r\n  overflow-wrap: anywhere;\r\n}\r\n\r\n.leeyee-p79 .p79-kicker {\r\n  display: inline-block;\r\n  margin: 2px 0 12px;\r\n  color: var(--ly-blue);\r\n  font-size: 14px;\r\n  line-height: 1.4;\r\n  font-weight: 700;\r\n  letter-spacing: 0.045em;\r\n  text-transform: uppercase;\r\n}\r\n\r\n.leeyee-p79 .p79-intro {\r\n  color: #384955;\r\n  font-size: 18px;\r\n}\r\n\r\n.leeyee-p79 .p79-quick {\r\n  margin: 30px 0 34px;\r\n  padding: 24px 26px;\r\n  border-left: 4px solid var(--ly-blue);\r\n  border-radius: 9px;\r\n  background: var(--ly-blue-soft);\r\n}\r\n\r\n.leeyee-p79 .p79-quick h2 {\r\n  margin: 0 0 13px;\r\n  font-size: 25px;\r\n}\r\n\r\n.leeyee-p79 .p79-quick p:last-child {\r\n  margin-bottom: 0;\r\n}\r\n\r\n\/* ---------- Images ---------- *\/\r\n\r\n.leeyee-p79 .p79-figure {\r\n  width: 100%;\r\n  max-width: 100%;\r\n  margin: 28px auto 34px;\r\n  overflow: hidden;\r\n}\r\n\r\n.leeyee-p79 .p79-figure-product {\r\n  max-width: 680px;\r\n}\r\n\r\n.leeyee-p79 .p79-figure img {\r\n  display: block;\r\n  width: 100%;\r\n  max-width: 100%;\r\n  height: auto;\r\n  margin: 0 auto;\r\n  border: 1px solid #e1e8ee;\r\n  border-radius: 10px;\r\n  background: #fff;\r\n  box-shadow: 0 4px 16px rgba(25, 52, 75, 0.06);\r\n}\r\n\r\n.leeyee-p79 .p79-figure-product img {\r\n  object-fit: contain;\r\n}\r\n\r\n.leeyee-p79 .p79-figure figcaption {\r\n  max-width: 760px;\r\n  margin: 10px auto 0;\r\n  color: var(--ly-muted);\r\n  font-size: 14px;\r\n  line-height: 1.58;\r\n}\r\n\r\n.leeyee-p79 .p79-figure figcaption strong {\r\n  color: #3d4c58;\r\n}\r\n\r\n\/* ---------- Summary ---------- *\/\r\n\r\n.leeyee-p79 .p79-summary {\r\n  display: grid;\r\n  grid-template-columns: repeat(2, minmax(0, 1fr));\r\n  gap: 12px;\r\n  margin: 23px 0 32px;\r\n}\r\n\r\n.leeyee-p79 .p79-summary-item {\r\n  padding: 17px 18px;\r\n  border: 1px solid var(--ly-border);\r\n  border-radius: 8px;\r\n  background: #fff;\r\n}\r\n\r\n.leeyee-p79 .p79-summary-item strong {\r\n  display: block;\r\n  margin-bottom: 5px;\r\n  color: var(--ly-blue);\r\n  font-size: 16px;\r\n}\r\n\r\n.leeyee-p79 .p79-summary-item span {\r\n  display: block;\r\n  color: var(--ly-muted);\r\n  font-size: 15px;\r\n  line-height: 1.55;\r\n}\r\n\r\n\/* ---------- Tables ---------- *\/\r\n\r\n.leeyee-p79 .p79-table-note {\r\n  margin: 0 0 10px;\r\n  color: var(--ly-muted);\r\n  font-size: 14.5px;\r\n  line-height: 1.55;\r\n}\r\n\r\n.leeyee-p79 .p79-table-wrap {\r\n  width: 100%;\r\n  margin: 14px 0 12px;\r\n  overflow-x: auto;\r\n  -webkit-overflow-scrolling: touch;\r\n  border: 1px solid var(--ly-border);\r\n  border-radius: 9px;\r\n  background: #fff;\r\n}\r\n\r\n.leeyee-p79 table {\r\n  width: 100%;\r\n  min-width: 650px;\r\n  border-collapse: collapse;\r\n  background: #fff;\r\n  font-size: 15px;\r\n  line-height: 1.48;\r\n}\r\n\r\n.leeyee-p79 th {\r\n  padding: 13px 14px;\r\n  background: var(--ly-blue);\r\n  color: #fff;\r\n  text-align: left;\r\n  vertical-align: top;\r\n  font-weight: 700;\r\n}\r\n\r\n.leeyee-p79 td {\r\n  padding: 13px 14px;\r\n  border-top: 1px solid var(--ly-border);\r\n  vertical-align: top;\r\n}\r\n\r\n.leeyee-p79 tbody tr:nth-child(even) td {\r\n  background: #fbfdff;\r\n}\r\n\r\n.leeyee-p79 .p79-table-conclusion {\r\n  margin: 0 0 28px;\r\n  color: #41515d;\r\n  font-size: 15px;\r\n}\r\n\r\n.leeyee-p79 .p79-priority {\r\n  white-space: nowrap;\r\n  font-weight: 700;\r\n}\r\n\r\n.leeyee-p79 .p79-critical {\r\n  color: #963737;\r\n}\r\n\r\n.leeyee-p79 .p79-high {\r\n  color: #7d5a0a;\r\n}\r\n\r\n\/* ---------- Checklist ---------- *\/\r\n\r\n.leeyee-p79 .p79-checklist {\r\n  margin: 22px 0 29px;\r\n  padding: 22px 24px;\r\n  border: 1px solid #d2e0e9;\r\n  border-radius: 9px;\r\n  background: #fff;\r\n}\r\n\r\n.leeyee-p79 .p79-checklist h3 {\r\n  margin-top: 0;\r\n  color: var(--ly-blue);\r\n}\r\n\r\n.leeyee-p79 .p79-check {\r\n  position: relative;\r\n  margin: 0;\r\n  padding: 11px 0 11px 31px;\r\n  border-bottom: 1px solid #edf1f4;\r\n}\r\n\r\n.leeyee-p79 .p79-check:last-child {\r\n  border-bottom: 0;\r\n}\r\n\r\n.leeyee-p79 .p79-check::before {\r\n  content: \"\";\r\n  position: absolute;\r\n  top: 16px;\r\n  left: 2px;\r\n  width: 16px;\r\n  height: 16px;\r\n  border: 2px solid #8ba1b3;\r\n  border-radius: 3px;\r\n  background: #fff;\r\n}\r\n\r\n\/* ---------- Callouts ---------- *\/\r\n\r\n.leeyee-p79 .p79-note,\r\n.leeyee-p79 .p79-good,\r\n.leeyee-p79 .p79-warning,\r\n.leeyee-p79 .p79-stop {\r\n  margin: 24px 0;\r\n  padding: 19px 21px;\r\n  border-radius: 8px;\r\n}\r\n\r\n.leeyee-p79 .p79-note {\r\n  border: 1px solid #cfdfeb;\r\n  background: var(--ly-blue-soft);\r\n}\r\n\r\n.leeyee-p79 .p79-good {\r\n  border-left: 4px solid var(--ly-green);\r\n  background: var(--ly-green-bg);\r\n}\r\n\r\n.leeyee-p79 .p79-warning {\r\n  border-left: 4px solid #d3a431;\r\n  background: var(--ly-amber-bg);\r\n}\r\n\r\n.leeyee-p79 .p79-stop {\r\n  border-left: 4px solid var(--ly-red);\r\n  background: var(--ly-red-bg);\r\n}\r\n\r\n.leeyee-p79 .p79-label {\r\n  display: block;\r\n  margin-bottom: 7px;\r\n  color: var(--ly-blue);\r\n  font-size: 14px;\r\n  line-height: 1.3;\r\n  font-weight: 700;\r\n  letter-spacing: 0.02em;\r\n  text-transform: uppercase;\r\n}\r\n\r\n.leeyee-p79 .p79-stop .p79-label {\r\n  color: var(--ly-red);\r\n}\r\n\r\n.leeyee-p79 .p79-note p:last-child,\r\n.leeyee-p79 .p79-good p:last-child,\r\n.leeyee-p79 .p79-warning p:last-child,\r\n.leeyee-p79 .p79-stop p:last-child {\r\n  margin-bottom: 0;\r\n}\r\n\r\n\/* ---------- Approval gates ---------- *\/\r\n\r\n.leeyee-p79 .p79-gates {\r\n  margin: 24px 0 31px;\r\n  border-top: 1px solid var(--ly-border);\r\n}\r\n\r\n.leeyee-p79 .p79-gate {\r\n  display: grid;\r\n  grid-template-columns: 54px minmax(0, 1fr);\r\n  gap: 15px;\r\n  padding: 20px 0;\r\n  border-bottom: 1px solid var(--ly-border);\r\n}\r\n\r\n.leeyee-p79 .p79-gate-number {\r\n  display: flex;\r\n  align-items: center;\r\n  justify-content: center;\r\n  width: 44px;\r\n  height: 44px;\r\n  border-radius: 50%;\r\n  background: var(--ly-blue-pale);\r\n  color: var(--ly-blue);\r\n  font-size: 15px;\r\n  font-weight: 700;\r\n}\r\n\r\n.leeyee-p79 .p79-gate h3 {\r\n  margin: 1px 0 7px;\r\n  font-size: 20px;\r\n}\r\n\r\n\/* ---------- Status ---------- *\/\r\n\r\n.leeyee-p79 .p79-status {\r\n  display: inline-block;\r\n  min-width: 70px;\r\n  padding: 4px 9px;\r\n  border-radius: 999px;\r\n  font-size: 12.5px;\r\n  line-height: 1.35;\r\n  font-weight: 700;\r\n  text-align: center;\r\n}\r\n\r\n.leeyee-p79 .p79-pass {\r\n  background: #e9f6ef;\r\n  color: #216947;\r\n}\r\n\r\n.leeyee-p79 .p79-hold {\r\n  background: #fff4d8;\r\n  color: #805c0c;\r\n}\r\n\r\n.leeyee-p79 .p79-fail {\r\n  background: #fdecec;\r\n  color: #913535;\r\n}\r\n\r\n\/* ---------- CTA ---------- *\/\r\n\r\n.leeyee-p79 .p79-cta {\r\n  margin: 36px 0;\r\n  padding: 24px 25px;\r\n  border: 1px solid #cedfeb;\r\n  border-radius: 10px;\r\n  background: var(--ly-blue-soft);\r\n}\r\n\r\n.leeyee-p79 .p79-cta h3 {\r\n  margin: 0 0 10px;\r\n}\r\n\r\n.leeyee-p79 .p79-cta p {\r\n  margin-bottom: 18px;\r\n}\r\n\r\n.leeyee-p79 .leeyee-about-btn-light {\r\n  display: inline-flex;\r\n  align-items: center;\r\n  justify-content: center;\r\n  min-height: 50px;\r\n  padding: 12px 24px;\r\n  border: 1.5px solid #004898;\r\n  border-radius: 10px;\r\n  background: #fff;\r\n  color: #004898;\r\n  font-family: inherit;\r\n  font-size: 16px;\r\n  line-height: 1.25;\r\n  font-weight: 700;\r\n  text-align: center;\r\n  cursor: pointer;\r\n  box-shadow: 0 4px 12px rgba(0, 72, 152, 0.10);\r\n  appearance: none;\r\n  -webkit-appearance: none;\r\n  transition:\r\n    background-color .2s ease,\r\n    color .2s ease,\r\n    transform .2s ease,\r\n    box-shadow .2s ease;\r\n}\r\n\r\n.leeyee-p79 .leeyee-about-btn-light:hover {\r\n  background: #004898;\r\n  color: #fff;\r\n  transform: translateY(-1px);\r\n  box-shadow: 0 6px 16px rgba(0, 72, 152, 0.16);\r\n}\r\n\r\n.leeyee-p79 .leeyee-about-btn-light:focus-visible {\r\n  outline: 3px solid rgba(0, 72, 152, 0.24);\r\n  outline-offset: 3px;\r\n}\r\n\r\n.leeyee-p79 .leeyee-about-btn-light:active {\r\n  transform: translateY(0);\r\n}\r\n\r\n\/* ---------- FAQ ---------- *\/\r\n\r\n.leeyee-p79 .p79-faq {\r\n  padding: 18px 0;\r\n  border-bottom: 1px solid var(--ly-border);\r\n}\r\n\r\n.leeyee-p79 .p79-faq h3 {\r\n  margin: 0 0 9px;\r\n  font-size: 20px;\r\n}\r\n\r\n.leeyee-p79 .p79-faq p:last-child {\r\n  margin-bottom: 0;\r\n}\r\n\r\n\/* ---------- References ---------- *\/\r\n\r\n.leeyee-p79 .p79-sources {\r\n  margin-top: 48px;\r\n  padding-top: 26px;\r\n  border-top: 1px solid var(--ly-border);\r\n  color: var(--ly-muted);\r\n  font-size: 14.5px;\r\n}\r\n\r\n.leeyee-p79 .p79-sources h2 {\r\n  margin-top: 0;\r\n  font-size: 25px;\r\n}\r\n\r\n.leeyee-p79 .p79-sources li {\r\n  margin: 10px 0;\r\n}\r\n\r\n\/* ---------- Responsive ---------- *\/\r\n\r\n@media (max-width: 820px) {\r\n  .leeyee-p79 {\r\n    padding-left: 18px;\r\n    padding-right: 18px;\r\n  }\r\n\r\n  .leeyee-p79 .p79-summary {\r\n    grid-template-columns: 1fr;\r\n  }\r\n}\r\n\r\n@media (max-width: 768px) {\r\n  .leeyee-p79 {\r\n    font-size: 16px;\r\n  }\r\n\r\n  .leeyee-p79 h2 {\r\n    margin-top: 45px;\r\n    font-size: 27px;\r\n  }\r\n\r\n  .leeyee-p79 h3 {\r\n    font-size: 21px;\r\n  }\r\n\r\n  .leeyee-p79 .p79-quick,\r\n  .leeyee-p79 .p79-checklist,\r\n  .leeyee-p79 .p79-cta {\r\n    padding: 20px;\r\n  }\r\n\r\n  .leeyee-p79 table {\r\n    min-width: 620px;\r\n  }\r\n}\r\n\r\n@media (max-width: 600px) {\r\n  .leeyee-p79 .p79-gate {\r\n    grid-template-columns: 42px minmax(0, 1fr);\r\n    gap: 11px;\r\n  }\r\n\r\n  .leeyee-p79 .p79-gate-number {\r\n    width: 38px;\r\n    height: 38px;\r\n  }\r\n}\r\n\r\n@media (max-width: 480px) {\r\n  .leeyee-p79 {\r\n    padding-left: 15px;\r\n    padding-right: 15px;\r\n  }\r\n\r\n  .leeyee-p79 h2 {\r\n    font-size: 25px;\r\n  }\r\n\r\n  .leeyee-p79 .p79-intro {\r\n    font-size: 17px;\r\n  }\r\n\r\n  .leeyee-p79 .p79-quick,\r\n  .leeyee-p79 .p79-checklist,\r\n  .leeyee-p79 .p79-note,\r\n  .leeyee-p79 .p79-good,\r\n  .leeyee-p79 .p79-warning,\r\n  .leeyee-p79 .p79-stop,\r\n  .leeyee-p79 .p79-cta {\r\n    padding: 18px;\r\n  }\r\n\r\n  .leeyee-p79 .leeyee-about-btn-light {\r\n    width: 100%;\r\n    min-height: 50px;\r\n    padding-left: 18px;\r\n    padding-right: 18px;\r\n  }\r\n\r\n  .leeyee-p79 .p79-figure figcaption {\r\n    font-size: 13.5px;\r\n  }\r\n}\r\n<\/style>\r\n\r\n<article class=\"leeyee-p79\">\r\n\r\n  <span class=\"p79-kicker\">ATS Procurement &amp; Supplier Evaluation<\/span>\r\n\r\n  <p class=\"p79-intro\">\r\n    A good automatic transfer switch sample does not automatically mean a supplier is ready for a bulk order.\r\n    For an importer, distributor, generator-set integrator or private-label buyer, the real question is whether the supplier can reproduce the approved ATS consistently across future production batches.\r\n  <\/p>\r\n\r\n  <p>\r\n    A useful ATS supplier audit therefore goes beyond price, catalogue claims and a certificate PDF.\r\n    It checks the exact product configuration, technical documents, applicable conformity evidence, sample-to-production control, factory inspection, OEM artwork, change management, batch traceability and after-sales support.\r\n  <\/p>\r\n\r\n  <section class=\"p79-quick\">\r\n    <div id=\"ez-toc-container\" class=\"ez-toc-v2_0_89 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\/de\/ats-supplier-audit-checklist\/#quick-answer-how-should-you-audit-an-ats-supplier\" >Quick Answer: How Should You Audit an ATS Supplier?<\/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\/de\/ats-supplier-audit-checklist\/#use-approval-gates-not-a-vague-supplier-score\" >Use Approval Gates, Not a Vague Supplier Score<\/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\/de\/ats-supplier-audit-checklist\/#1-verify-the-ats-product-line-before-comparing-prices\" >1. Verify the ATS Product Line Before Comparing Prices<\/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\/de\/ats-supplier-audit-checklist\/#2-can-the-supplier-define-the-exact-ats-you-are-buying\" >2. Can the Supplier Define the Exact ATS You Are Buying?<\/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\/de\/ats-supplier-audit-checklist\/#3-audit-the-technical-documents-as-one-controlled-set\" >3. Audit the Technical Documents as One Controlled Set<\/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\/de\/ats-supplier-audit-checklist\/#4-verify-certificate-scope-not-just-a-certificate-cover\" >4. Verify Certificate Scope, Not Just a Certificate Cover<\/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\/de\/ats-supplier-audit-checklist\/#5-evaluate-a-representative-sample-before-bulk-production\" >5. Evaluate a Representative Sample Before Bulk Production<\/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\/de\/ats-supplier-audit-checklist\/#6-ask-how-product-changes-are-controlled\" >6. Ask How Product Changes Are Controlled<\/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\/de\/ats-supplier-audit-checklist\/#7-audit-what-the-factory-actually-checks-before-shipment\" >7. Audit What the Factory Actually Checks Before Shipment<\/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\/de\/ats-supplier-audit-checklist\/#8-audit-oem-capability-through-revision-control\" >8. Audit OEM Capability Through Revision Control<\/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\/de\/ats-supplier-audit-checklist\/#9-require-batch-traceability-before-you-need-it\" >9. Require Batch Traceability Before You Need It<\/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\/de\/ats-supplier-audit-checklist\/#10-test-technical-communication-before-visiting-the-factory\" >10. Test Technical Communication Before Visiting the Factory<\/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\/de\/ats-supplier-audit-checklist\/#11-audit-lead-time-management-not-just-the-promised-number\" >11. Audit Lead-Time Management, Not Just the Promised Number<\/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\/de\/ats-supplier-audit-checklist\/#12-audit-after-sales-support-before-the-first-complaint\" >12. Audit After-Sales Support Before the First Complaint<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/de\/ats-supplier-audit-checklist\/#13-when-is-a-pilot-order-useful\" >13. When Is a Pilot Order Useful?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/de\/ats-supplier-audit-checklist\/#14-use-a-pass-hold-fail-decision-for-critical-items\" >14. Use a Pass \/ Hold \/ Fail Decision for Critical Items<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/de\/ats-supplier-audit-checklist\/#15-common-ats-supplier-audit-red-flags\" >15. Common ATS Supplier Audit Red Flags<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/de\/ats-supplier-audit-checklist\/#16-what-should-you-prepare-before-requesting-a-bulk-ats-quote\" >16. What Should You Prepare Before Requesting a Bulk ATS Quote?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/de\/ats-supplier-audit-checklist\/#17-how-should-buyers-audit-leeyee\" >17. How Should Buyers Audit LEEYEE?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/de\/ats-supplier-audit-checklist\/#ats-supplier-audit-faq\" >ATS Supplier Audit FAQ<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/de\/ats-supplier-audit-checklist\/#references\" >References<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"quick-answer-how-should-you-audit-an-ats-supplier\"><\/span>Quick Answer: How Should You Audit an ATS Supplier?<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n    <p>\r\n      Use a controlled approval sequence:\r\n      <strong>define the ATS requirement \u2192 confirm the exact model \u2192 review datasheets and wiring \u2192 verify required certificate scope \u2192 evaluate a representative sample \u2192 freeze the approved configuration \u2192 confirm production inspection and OEM controls \u2192 verify traceability \u2192 release the bulk order.<\/strong>\r\n    <\/p>\r\n\r\n    <p>\r\n      The most important question is not simply whether a supplier can manufacture an ATS.\r\n      It is whether the supplier can repeatedly deliver the <strong>same approved ATS configuration<\/strong> with controlled documents and traceable production records.\r\n    <\/p>\r\n  <\/section>\r\n\r\n  <figure class=\"p79-figure\">\r\n    <img fetchpriority=\"high\"\r\n      src=\"https:\/\/www.cnspd.com\/wp-content\/uploads\/2026\/10\/ats-supplier-audit-process-flow.webp\"\r\n      alt=\"ATS supplier audit process from technical review to bulk production approval\"\r\n      width=\"1448\"\r\n      height=\"1086\"\r\n      loading=\"eager\"\r\n      decoding=\"async\">\r\n    <figcaption>\r\n      <strong>ATS supplier audit workflow.<\/strong>\r\n      This diagram summarizes the recommended decision sequence from RFQ and model confirmation through sample approval, production control and traceability.\r\n      Exact approval documents and test requirements must still be confirmed for the selected model, destination market and project.\r\n    <\/figcaption>\r\n  <\/figure>\r\n\r\n  <div class=\"p79-summary\">\r\n    <div class=\"p79-summary-item\">\r\n      <strong>Product fit<\/strong>\r\n      <span>Can the supplier provide the exact current, poles, voltage and transfer configuration required?<\/span>\r\n    <\/div>\r\n\r\n    <div class=\"p79-summary-item\">\r\n      <strong>Technical evidence<\/strong>\r\n      <span>Do datasheets, diagrams and conformity documents match the proposed ATS?<\/span>\r\n    <\/div>\r\n\r\n    <div class=\"p79-summary-item\">\r\n      <strong>Production consistency<\/strong>\r\n      <span>Can mass production reproduce the configuration approved during sample evaluation?<\/span>\r\n    <\/div>\r\n\r\n    <div class=\"p79-summary-item\">\r\n      <strong>Long-term support<\/strong>\r\n      <span>Can repeat orders, revisions, complaints and replacements be traced and controlled?<\/span>\r\n    <\/div>\r\n  <\/div>\r\n\r\n  <h2><span class=\"ez-toc-section\" id=\"use-approval-gates-not-a-vague-supplier-score\"><\/span>Use Approval Gates, Not a Vague Supplier Score<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n  <p>\r\n    Some supplier-audit items are commercial preferences.\r\n    Others should stop an order until the issue is resolved.\r\n  <\/p>\r\n\r\n  <p class=\"p79-table-note\">\r\n    Focus first on the Critical rows. A competitive price cannot compensate for an unidentified product, conflicting documents or missing conformity evidence required by the project.\r\n  <\/p>\r\n\r\n  <div class=\"p79-table-wrap\">\r\n    <table>\r\n      <thead>\r\n        <tr>\r\n          <th>Approval Gate<\/th>\r\n          <th>Priority<\/th>\r\n          <th>Buyer Must Confirm<\/th>\r\n          <th>Typical Evidence<\/th>\r\n        <\/tr>\r\n      <\/thead>\r\n      <tbody>\r\n        <tr>\r\n          <td>Product definition<\/td>\r\n          <td class=\"p79-priority p79-critical\">Critical<\/td>\r\n          <td>Exact current, voltage, poles and architecture<\/td>\r\n          <td>Model matrix + datasheet<\/td>\r\n        <\/tr>\r\n        <tr>\r\n          <td>Document match<\/td>\r\n          <td class=\"p79-priority p79-critical\">Critical<\/td>\r\n          <td>Documents correspond to the offered model<\/td>\r\n          <td>Datasheet + wiring + manual<\/td>\r\n        <\/tr>\r\n        <tr>\r\n          <td>Required certification<\/td>\r\n          <td class=\"p79-priority p79-critical\">Critical*<\/td>\r\n          <td>Applicable evidence covers the actual model<\/td>\r\n          <td>Certificate + report scope<\/td>\r\n        <\/tr>\r\n        <tr>\r\n          <td>Sample approval<\/td>\r\n          <td class=\"p79-priority p79-critical\">Critical<\/td>\r\n          <td>Physical sample meets the agreed specification<\/td>\r\n          <td>Approved sample record<\/td>\r\n        <\/tr>\r\n        <tr>\r\n          <td>Change control<\/td>\r\n          <td class=\"p79-priority p79-critical\">Critical<\/td>\r\n          <td>Material changes cannot occur without control<\/td>\r\n          <td>Revision \/ change procedure<\/td>\r\n        <\/tr>\r\n        <tr>\r\n          <td>Production inspection<\/td>\r\n          <td class=\"p79-priority p79-high\">High<\/td>\r\n          <td>Outgoing checks are defined<\/td>\r\n          <td>Inspection plan \/ records<\/td>\r\n        <\/tr>\r\n        <tr>\r\n          <td>OEM control<\/td>\r\n          <td class=\"p79-priority p79-high\">High<\/td>\r\n          <td>Labels, manuals and packaging are revision controlled<\/td>\r\n          <td>Approved artwork<\/td>\r\n        <\/tr>\r\n        <tr>\r\n          <td>Traceability<\/td>\r\n          <td class=\"p79-priority p79-high\">High<\/td>\r\n          <td>A complaint can be linked to a production batch<\/td>\r\n          <td>Lot \/ date \/ record system<\/td>\r\n        <\/tr>\r\n        <tr>\r\n          <td>Delivery management<\/td>\r\n          <td class=\"p79-priority p79-high\">High<\/td>\r\n          <td>Lead time reflects the actual order conditions<\/td>\r\n          <td>Production plan<\/td>\r\n        <\/tr>\r\n        <tr>\r\n          <td>After-sales support<\/td>\r\n          <td class=\"p79-priority p79-high\">High<\/td>\r\n          <td>Technical complaints and replacements have a process<\/td>\r\n          <td>Complaint workflow<\/td>\r\n        <\/tr>\r\n      <\/tbody>\r\n    <\/table>\r\n  <\/div>\r\n\r\n  <p class=\"p79-table-conclusion\">\r\n    *Certification becomes a critical gate when required by the destination market, customer specification, contract or project approval process.\r\n  <\/p>\r\n\r\n  <div class=\"p79-stop\">\r\n    <span class=\"p79-label\">Stop-Order Condition<\/span>\r\n    <p>\r\n      Do not release a bulk order if the supplier cannot clearly identify the product being supplied, if key technical documents conflict with the approved sample, or if conformity evidence required by the project cannot be connected to the ordered model.\r\n    <\/p>\r\n  <\/div>\r\n\r\n  <h2><span class=\"ez-toc-section\" id=\"1-verify-the-ats-product-line-before-comparing-prices\"><\/span>1. Verify the ATS Product Line Before Comparing Prices<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n  <p>\r\n    Supplier evaluation should begin with product fit.\r\n    A capable factory is still the wrong supplier if its ATS platform does not match the buyer's electrical system or project requirements.\r\n  <\/p>\r\n\r\n  <figure class=\"p79-figure p79-figure-product\">\r\n    <img loading=\"lazy\"\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 supplier evaluation\"\r\n      width=\"640\"\r\n      height=\"640\"\r\n      loading=\"lazy\"\r\n      decoding=\"async\">\r\n    <figcaption>\r\n      <strong>Actual LEEYEE compact ATS products.<\/strong>\r\n      The image shows 2P and 4P compact automatic transfer switch configurations with A\/B source terminals, Auto \/ Manual operation and load terminals.\r\n      Buyers should still confirm the exact rated current, system voltage, pole configuration, wiring, control functions and applicable documents for the model being ordered.\r\n    <\/figcaption>\r\n  <\/figure>\r\n\r\n  <div class=\"p79-checklist\">\r\n    <h3>Product Capability Checklist<\/h3>\r\n\r\n    <p class=\"p79-check\">Confirm whether the required rated-current range belongs to the supplier's regular product line.<\/p>\r\n    <p class=\"p79-check\">Confirm the actual available 2P, 3P and 4P configurations instead of assuming every current rating has every pole option.<\/p>\r\n    <p class=\"p79-check\">Confirm which configurations are intended for single-phase and three-phase systems.<\/p>\r\n    <p class=\"p79-check\">Verify the rated operational voltage and frequency for the proposed model.<\/p>\r\n    <p class=\"p79-check\">Confirm the transfer architecture and product classification relevant to the intended application.<\/p>\r\n    <p class=\"p79-check\">Identify which models are regular production items and which require project-specific confirmation.<\/p>\r\n    <p class=\"p79-check\">Check whether model naming remains stable enough for repeat orders, ERP records, catalogues and after-sales identification.<\/p>\r\n  <\/div>\r\n\r\n  <div class=\"p79-note\">\r\n    <span class=\"p79-label\">Buyer Meaning<\/span>\r\n    <p>\r\n      A catalogue containing many current ratings does not prove that every rating is available with every pole configuration, controller function or certificate scope.\r\n      Audit the exact model proposed for your order.\r\n    <\/p>\r\n  <\/div>\r\n\r\n  <h2><span class=\"ez-toc-section\" id=\"2-can-the-supplier-define-the-exact-ats-you-are-buying\"><\/span>2. Can the Supplier Define the Exact ATS You Are Buying?<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n  <p>\r\n    \u201c100 A, 4P ATS\u201d is not a complete bulk-purchase specification.\r\n  <\/p>\r\n\r\n  <p>\r\n    The approved product should be identifiable through a controlled combination of model number, electrical rating, pole configuration, mechanical version and control functions.\r\n  <\/p>\r\n\r\n  <p class=\"p79-table-note\">\r\n    The most important column below is Recommended Evidence. It turns a verbal sales claim into something purchasing and quality teams can verify.\r\n  <\/p>\r\n\r\n  <div class=\"p79-table-wrap\">\r\n    <table>\r\n      <thead>\r\n        <tr>\r\n          <th>Item<\/th>\r\n          <th>Why It Matters<\/th>\r\n          <th>Recommended Evidence<\/th>\r\n        <\/tr>\r\n      <\/thead>\r\n      <tbody>\r\n        <tr>\r\n          <td>Model number<\/td>\r\n          <td>Prevents wrong-product ordering<\/td>\r\n          <td>Model coding table<\/td>\r\n        <\/tr>\r\n        <tr>\r\n          <td>Rated current<\/td>\r\n          <td>Defines the ordered rating<\/td>\r\n          <td>Datasheet + nameplate<\/td>\r\n        <\/tr>\r\n        <tr>\r\n          <td>Rated voltage \/ frequency<\/td>\r\n          <td>Must suit the intended system<\/td>\r\n          <td>Datasheet + nameplate<\/td>\r\n        <\/tr>\r\n        <tr>\r\n          <td>2P \/ 3P \/ 4P<\/td>\r\n          <td>Affects switched conductors and installation<\/td>\r\n          <td>Model code + wiring diagram<\/td>\r\n        <\/tr>\r\n        <tr>\r\n          <td>Transfer architecture<\/td>\r\n          <td>Different architectures are not interchangeable<\/td>\r\n          <td>Technical specification<\/td>\r\n        <\/tr>\r\n        <tr>\r\n          <td>Controller functions<\/td>\r\n          <td>Affects source detection and transfer behaviour<\/td>\r\n          <td>Operating manual<\/td>\r\n        <\/tr>\r\n        <tr>\r\n          <td>Auxiliary interfaces<\/td>\r\n          <td>Affects generator or monitoring integration<\/td>\r\n          <td>Terminal information<\/td>\r\n        <\/tr>\r\n        <tr>\r\n          <td>Mechanical dimensions<\/td>\r\n          <td>Affects panel integration<\/td>\r\n          <td>Dimension drawing<\/td>\r\n        <\/tr>\r\n      <\/tbody>\r\n    <\/table>\r\n  <\/div>\r\n\r\n  <p class=\"p79-table-conclusion\">\r\n    Procurement conclusion: the quotation, datasheet, wiring diagram, manual and physical sample should all point to the same identifiable configuration.\r\n  <\/p>\r\n\r\n  <p>\r\n    IEC 60947-6-1:2026 applies to transfer switching equipment within its defined scope for systems whose rated voltage does not exceed 1,000 V AC or 1,500 V DC.\r\n    It covers ATSE and includes specific provisions for configurations such as bypass\/isolation transfer switching equipment and ATSE with closed-transition capability. [1]\r\n  <\/p>\r\n\r\n  <div class=\"p79-warning\">\r\n    <span class=\"p79-label\">Engineering Boundary<\/span>\r\n    <p>\r\n      Do not treat a compact open-transition ATS as equivalent to a closed-transition, bypass\/isolation or other specialized transfer system simply because current and voltage ratings appear similar.\r\n      The required architecture and applicable project conditions must be confirmed separately.\r\n    <\/p>\r\n  <\/div>\r\n\r\n  <h2><span class=\"ez-toc-section\" id=\"3-audit-the-technical-documents-as-one-controlled-set\"><\/span>3. Audit the Technical Documents as One Controlled Set<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n  <p>\r\n    Documentation quality is an important supplier-audit signal because bulk purchasing depends on more than a working physical sample.\r\n  <\/p>\r\n\r\n  <p>\r\n    The quotation, datasheet, wiring diagram, installation manual, dimensions and nameplate information should be checked together.\r\n  <\/p>\r\n\r\n  <div class=\"p79-gates\">\r\n    <div class=\"p79-gate\">\r\n      <div class=\"p79-gate-number\">01<\/div>\r\n      <div>\r\n        <h3>Datasheet<\/h3>\r\n        <p>Does it identify the same model, rating and configuration as the quotation?<\/p>\r\n      <\/div>\r\n    <\/div>\r\n\r\n    <div class=\"p79-gate\">\r\n      <div class=\"p79-gate-number\">02<\/div>\r\n      <div>\r\n        <h3>Wiring Diagram<\/h3>\r\n        <p>Does the diagram correspond to the actual pole configuration, terminals and control functions?<\/p>\r\n      <\/div>\r\n    <\/div>\r\n\r\n    <div class=\"p79-gate\">\r\n      <div class=\"p79-gate-number\">03<\/div>\r\n      <div>\r\n        <h3>Installation \/ Operating Manual<\/h3>\r\n        <p>Can the buyer identify which ATS version the manual applies to?<\/p>\r\n      <\/div>\r\n    <\/div>\r\n\r\n    <div class=\"p79-gate\">\r\n      <div class=\"p79-gate-number\">04<\/div>\r\n      <div>\r\n        <h3>Dimension Drawing<\/h3>\r\n        <p>Can a panel builder use it to confirm mounting and enclosure space?<\/p>\r\n      <\/div>\r\n    <\/div>\r\n\r\n    <div class=\"p79-gate\">\r\n      <div class=\"p79-gate-number\">05<\/div>\r\n      <div>\r\n        <h3>Nameplate<\/h3>\r\n        <p>Does the physical marking match the approved model and ratings?<\/p>\r\n      <\/div>\r\n    <\/div>\r\n  <\/div>\r\n\r\n  <div class=\"p79-stop\">\r\n    <span class=\"p79-label\">Document Red Flag<\/span>\r\n    <p>\r\n      If one generic datasheet or wiring diagram is used for several materially different ATS configurations, request model-specific information before approval.\r\n    <\/p>\r\n  <\/div>\r\n\r\n  <h2><span class=\"ez-toc-section\" id=\"4-verify-certificate-scope-not-just-a-certificate-cover\"><\/span>4. Verify Certificate Scope, Not Just a Certificate Cover<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n  <p>\r\n    The supplier's answer to \u201cDo you have certification?\u201d is only the starting point.\r\n  <\/p>\r\n\r\n  <p>\r\n    The audit should establish whether the document is relevant to the required market and whether its model and rating scope actually includes the ATS being purchased.\r\n  <\/p>\r\n\r\n  <div class=\"p79-checklist\">\r\n    <h3>Certificate and Report Verification Checklist<\/h3>\r\n\r\n    <p class=\"p79-check\">Certificate holder or manufacturer identified in the document.<\/p>\r\n    <p class=\"p79-check\">Product category stated in the document.<\/p>\r\n    <p class=\"p79-check\">Referenced standard and edition.<\/p>\r\n    <p class=\"p79-check\">Exact model or model family covered.<\/p>\r\n    <p class=\"p79-check\">Electrical ratings included in the scope.<\/p>\r\n    <p class=\"p79-check\">Relevant annexes, continuation pages or report references.<\/p>\r\n    <p class=\"p79-check\">Issuing certification body or laboratory.<\/p>\r\n    <p class=\"p79-check\">Document number and current validity where applicable.<\/p>\r\n  <\/div>\r\n\r\n  <p>\r\n    UL Solutions identifies UL 1008 as the standard used for transfer switch equipment within applicable certification categories.\r\n    Buyers requiring UL certification should verify the actual product and certification record rather than assuming a general supplier claim covers every ATS variant. [2]\r\n  <\/p>\r\n\r\n  <div class=\"p79-note\">\r\n    <span class=\"p79-label\">Do Not Mix System Certification and Product Conformity<\/span>\r\n    <p>\r\n      ISO guidance explains that conformity to ISO 9001 demonstrates a systematic quality-management approach but should not be treated as a substitute for product conformity. [3]\r\n      A factory quality-system certificate therefore does not by itself prove that a particular ATS model meets a required product standard.\r\n    <\/p>\r\n  <\/div>\r\n\r\n  <h2><span class=\"ez-toc-section\" id=\"5-evaluate-a-representative-sample-before-bulk-production\"><\/span>5. Evaluate a Representative Sample Before Bulk Production<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n  <p>\r\n    Sample evaluation should establish a physical reference for the product the buyer intends to receive later in quantity.\r\n  <\/p>\r\n\r\n  <p>\r\n    Do not evaluate only whether the ATS transfers once.\r\n    Record the complete approved configuration and compare it against the quotation, datasheet, wiring information, markings and OEM requirements.\r\n  <\/p>\r\n\r\n  <p class=\"p79-table-note\">\r\n    Record the items below during sample evaluation so that later production can be compared against a defined reference.\r\n  <\/p>\r\n\r\n  <div class=\"p79-table-wrap\">\r\n    <table>\r\n      <thead>\r\n        <tr>\r\n          <th>Sample Item<\/th>\r\n          <th>What to Record<\/th>\r\n          <th>Why It Matters Later<\/th>\r\n        <\/tr>\r\n      <\/thead>\r\n      <tbody>\r\n        <tr>\r\n          <td>Housing<\/td>\r\n          <td>Structure, colour, markings<\/td>\r\n          <td>Visual batch comparison<\/td>\r\n        <\/tr>\r\n        <tr>\r\n          <td>Front interface<\/td>\r\n          <td>Controls and indicators<\/td>\r\n          <td>Interface consistency<\/td>\r\n        <\/tr>\r\n        <tr>\r\n          <td>Nameplate<\/td>\r\n          <td>Model and electrical ratings<\/td>\r\n          <td>Shipment verification<\/td>\r\n        <\/tr>\r\n        <tr>\r\n          <td>Terminals<\/td>\r\n          <td>Power and auxiliary layout<\/td>\r\n          <td>Wiring consistency<\/td>\r\n        <\/tr>\r\n        <tr>\r\n          <td>Dimensions<\/td>\r\n          <td>Overall and mounting dimensions<\/td>\r\n          <td>Panel compatibility<\/td>\r\n        <\/tr>\r\n        <tr>\r\n          <td>Operating behaviour<\/td>\r\n          <td>Applicable Auto \/ Manual and transfer functions<\/td>\r\n          <td>Functional reference<\/td>\r\n        <\/tr>\r\n        <tr>\r\n          <td>Accessories<\/td>\r\n          <td>Manual, packaging and supplied items<\/td>\r\n          <td>Complete-order consistency<\/td>\r\n        <\/tr>\r\n      <\/tbody>\r\n    <\/table>\r\n  <\/div>\r\n\r\n  <p class=\"p79-table-conclusion\">\r\n    Procurement conclusion: approve a defined configuration, not just a product appearance.\r\n  <\/p>\r\n\r\n  <h3>Create a Golden Sample or Equivalent Approved Reference<\/h3>\r\n\r\n  <p>\r\n    After a representative sample passes evaluation, record it as the approved physical reference.\r\n    The buyer may call this a golden sample, approved sample or another controlled reference.\r\n  <\/p>\r\n\r\n  <p>\r\n    The important point is that the purchase order, technical specification, OEM artwork and production inspection can all refer back to the same approved version.\r\n  <\/p>\r\n\r\n  <div class=\"p79-good\">\r\n    <span class=\"p79-label\">Better Procurement Control<\/span>\r\n    <p>\r\n      A controlled sample reference makes later disagreements easier to prevent:\r\n      instead of asking whether a production unit \u201clooks different,\u201d both parties can compare it against an agreed configuration and revision.\r\n    <\/p>\r\n  <\/div>\r\n\r\n  <h2><span class=\"ez-toc-section\" id=\"6-ask-how-product-changes-are-controlled\"><\/span>6. Ask How Product Changes Are Controlled<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n  <p>\r\n    Sample approval has limited value if the supplier can later change components, terminals, housing or control design without a defined review process.\r\n  <\/p>\r\n\r\n  <p>\r\n    This does not mean a product can never change.\r\n    It means important changes should be identified, assessed and communicated according to the commercial and technical agreement.\r\n  <\/p>\r\n\r\n  <h3>Questions Worth Asking<\/h3>\r\n\r\n  <ul>\r\n    <li>What specification is released to production after sample approval?<\/li>\r\n    <li>How are different current and pole variants separated during production?<\/li>\r\n    <li>Who can authorize a component or structural substitution?<\/li>\r\n    <li>Which changes require buyer notification or renewed sample approval?<\/li>\r\n    <li>How are drawing, manual and artwork revisions identified?<\/li>\r\n    <li>Can an older production version be distinguished from a revised version?<\/li>\r\n  <\/ul>\r\n\r\n  <div class=\"p79-stop\">\r\n    <span class=\"p79-label\">Critical Audit Question<\/span>\r\n    <p>\r\n      Ask the supplier:\r\n      \u201cIf a terminal, controller, housing or other important part changes before our next order, how will that change be identified and communicated?\u201d\r\n    <\/p>\r\n  <\/div>\r\n\r\n  <h2><span class=\"ez-toc-section\" id=\"7-audit-what-the-factory-actually-checks-before-shipment\"><\/span>7. Audit What the Factory Actually Checks Before Shipment<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n  <p>\r\n    \u201cEvery ATS is tested\u201d is not enough information for a supplier audit.\r\n  <\/p>\r\n\r\n  <p>\r\n    Ask which characteristics are inspected, how acceptance is defined, whether records are retained, and how nonconforming units are handled.\r\n  <\/p>\r\n\r\n  <div class=\"p79-checklist\">\r\n    <h3>Factory QC Questions<\/h3>\r\n\r\n    <p class=\"p79-check\">Is the ATS model, current rating and pole configuration checked before functional inspection?<\/p>\r\n    <p class=\"p79-check\">Are product markings checked against the production order?<\/p>\r\n    <p class=\"p79-check\">Is automatic transfer operation checked where applicable to the ordered ATS?<\/p>\r\n    <p class=\"p79-check\">Is manual operation checked where the model provides that function?<\/p>\r\n    <p class=\"p79-check\">Are source-status indications checked where provided?<\/p>\r\n    <p class=\"p79-check\">Are load-position indications checked where provided?<\/p>\r\n    <p class=\"p79-check\">Are Auto \/ Manual control functions checked where applicable?<\/p>\r\n    <p class=\"p79-check\">Is fault indication checked when that function is included?<\/p>\r\n    <p class=\"p79-check\">Are generator-start, dry-contact or other auxiliary functions checked when they are part of the ordered configuration?<\/p>\r\n    <p class=\"p79-check\">Are terminals, assembly condition, labels and external appearance inspected?<\/p>\r\n    <p class=\"p79-check\">Is there a defined process for isolating, correcting and re-inspecting nonconforming units?<\/p>\r\n    <p class=\"p79-check\">Can inspection information be linked to the relevant production batch?<\/p>\r\n  <\/div>\r\n\r\n  <div class=\"p79-warning\">\r\n    <span class=\"p79-label\">Type Testing Is Not the Same as Routine Factory Inspection<\/span>\r\n    <p>\r\n      Standards-based product evaluation and routine outgoing inspection serve different purposes.\r\n      IECEE publishes a Test Report Form for IEC 60947-6-1:2026 used with IEC 60947-1:2020, illustrating the structured scope of conformity testing. [4]\r\n      Do not assume that a supplier's production-line functional check is equivalent to certification or type testing.\r\n    <\/p>\r\n  <\/div>\r\n\r\n  <h2><span class=\"ez-toc-section\" id=\"8-audit-oem-capability-through-revision-control\"><\/span>8. Audit OEM Capability Through Revision Control<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n  <p>\r\n    \u201cOEM supported\u201d can mean anything from adding a logo sticker to managing a complete private-label product package.\r\n  <\/p>\r\n\r\n  <p>\r\n    For a serious OEM order, the supplier should be able to control the relationship between the physical ATS, its model code, technical label, packaging and manual.\r\n  <\/p>\r\n\r\n  <p class=\"p79-table-note\">\r\n    OEM capability should be judged by how accurately revisions are controlled, not simply by whether the supplier can print a customer's logo.\r\n  <\/p>\r\n\r\n  <div class=\"p79-table-wrap\">\r\n    <table>\r\n      <thead>\r\n        <tr>\r\n          <th>OEM Item<\/th>\r\n          <th>What to Confirm<\/th>\r\n          <th>Approval Evidence<\/th>\r\n        <\/tr>\r\n      <\/thead>\r\n      <tbody>\r\n        <tr>\r\n          <td>Logo<\/td>\r\n          <td>Position, size and appearance<\/td>\r\n          <td>Artwork proof<\/td>\r\n        <\/tr>\r\n        <tr>\r\n          <td>Nameplate<\/td>\r\n          <td>Model and technical information<\/td>\r\n          <td>Approved label file<\/td>\r\n        <\/tr>\r\n        <tr>\r\n          <td>Model code<\/td>\r\n          <td>Buyer code vs factory reference<\/td>\r\n          <td>Cross-reference list<\/td>\r\n        <\/tr>\r\n        <tr>\r\n          <td>Packaging<\/td>\r\n          <td>Box, carton, barcode, quantity<\/td>\r\n          <td>Packaging artwork<\/td>\r\n        <\/tr>\r\n        <tr>\r\n          <td>Manual<\/td>\r\n          <td>Language and model applicability<\/td>\r\n          <td>Version-controlled PDF<\/td>\r\n        <\/tr>\r\n      <\/tbody>\r\n    <\/table>\r\n  <\/div>\r\n\r\n  <p class=\"p79-table-conclusion\">\r\n    Procurement conclusion: every OEM item should point back to the same approved ATS specification.\r\n  <\/p>\r\n\r\n  <h3>A Practical Artwork Approval Flow<\/h3>\r\n\r\n  <ol>\r\n    <li>Buyer sends branding, model and packaging requirements.<\/li>\r\n    <li>Supplier prepares proposed artwork.<\/li>\r\n    <li>Buyer checks both appearance and technical information.<\/li>\r\n    <li>The approved file receives a controlled revision.<\/li>\r\n    <li>Production uses the approved revision.<\/li>\r\n    <li>Pre-shipment inspection compares production against the approved file.<\/li>\r\n  <\/ol>\r\n\r\n  <div class=\"p79-warning\">\r\n    <span class=\"p79-label\">OEM Compliance Risk<\/span>\r\n    <p>\r\n      Do not add a certification mark, standard reference or electrical rating to OEM artwork merely because it appears on another product.\r\n      Markings and claims must correspond to the actual ATS and applicable approval scope.\r\n    <\/p>\r\n  <\/div>\r\n\r\n  <h2><span class=\"ez-toc-section\" id=\"9-require-batch-traceability-before-you-need-it\"><\/span>9. Require Batch Traceability Before You Need It<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n  <p>\r\n    Traceability may appear unimportant when the first sample works.\r\n    Its value becomes clear when hundreds of units have entered distribution channels.\r\n  <\/p>\r\n\r\n  <p>\r\n    If a buyer later reports an abnormal unit, the supplier should have a practical way to identify which product version and production batch are involved.\r\n  <\/p>\r\n\r\n  <div class=\"p79-checklist\">\r\n    <h3>Useful Traceability Fields<\/h3>\r\n\r\n    <p class=\"p79-check\">Exact product model or configuration.<\/p>\r\n    <p class=\"p79-check\">Batch, lot or other production identifier.<\/p>\r\n    <p class=\"p79-check\">Production date or traceable date code.<\/p>\r\n    <p class=\"p79-check\">Applicable OEM artwork revision.<\/p>\r\n    <p class=\"p79-check\">Inspection or outgoing-test record reference.<\/p>\r\n    <p class=\"p79-check\">Purchase order or shipment reference.<\/p>\r\n  <\/div>\r\n\r\n  <p>\r\n    The factory does not have to use one universal traceability format.\r\n    What matters is whether a field complaint can be connected to meaningful production information.\r\n  <\/p>\r\n\r\n  <h2><span class=\"ez-toc-section\" id=\"10-test-technical-communication-before-visiting-the-factory\"><\/span>10. Test Technical Communication Before Visiting the Factory<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n  <p>\r\n    One of the simplest supplier audits can be performed during the RFQ stage.\r\n  <\/p>\r\n\r\n  <p>\r\n    Send a realistic system requirement and observe whether the supplier asks enough technical questions before recommending a model.\r\n  <\/p>\r\n\r\n  <div class=\"p79-checklist\">\r\n    <h3>A Technical ATS Enquiry May Need to Clarify<\/h3>\r\n\r\n    <p class=\"p79-check\">System voltage and frequency.<\/p>\r\n    <p class=\"p79-check\">Single-phase or three-phase system.<\/p>\r\n    <p class=\"p79-check\">Required rated current or load information.<\/p>\r\n    <p class=\"p79-check\">Required 2P, 3P or 4P configuration.<\/p>\r\n    <p class=\"p79-check\">Normal and alternative power-source type.<\/p>\r\n    <p class=\"p79-check\">Required transfer architecture.<\/p>\r\n    <p class=\"p79-check\">Automatic and manual operating requirements.<\/p>\r\n    <p class=\"p79-check\">Generator-start interface where required.<\/p>\r\n    <p class=\"p79-check\">Dry contacts or remote status requirements where applicable.<\/p>\r\n    <p class=\"p79-check\">Installation dimensions or available panel space.<\/p>\r\n    <p class=\"p79-check\">Destination market and required conformity documents.<\/p>\r\n    <p class=\"p79-check\">Quantity and OEM requirements.<\/p>\r\n  <\/div>\r\n\r\n  <div class=\"p79-stop\">\r\n    <span class=\"p79-label\">Audit Signal<\/span>\r\n    <p>\r\n      If a supplier recommends a final ATS model after receiving only a current rating and pole count, further technical confirmation is justified.\r\n      The exact information required depends on the application.\r\n    <\/p>\r\n  <\/div>\r\n\r\n  <h2><span class=\"ez-toc-section\" id=\"11-audit-lead-time-management-not-just-the-promised-number\"><\/span>11. Audit Lead-Time Management, Not Just the Promised Number<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n  <p>\r\n    A single lead-time statement has limited value unless it is connected to the actual model mix, quantity, material availability and OEM work involved.\r\n  <\/p>\r\n\r\n  <h3>Ask for practical answers to these questions<\/h3>\r\n\r\n  <ul>\r\n    <li>Which ATS configurations are produced regularly?<\/li>\r\n    <li>Which variants normally require production to order?<\/li>\r\n    <li>At what point is the production schedule confirmed?<\/li>\r\n    <li>When must OEM artwork and manuals be frozen?<\/li>\r\n    <li>How is a mixed-current or mixed-pole order scheduled?<\/li>\r\n    <li>How are material shortages or production delays communicated?<\/li>\r\n    <li>Can the supplier provide meaningful production milestones for a large order?<\/li>\r\n  <\/ul>\r\n\r\n  <div class=\"p79-note\">\r\n    <span class=\"p79-label\">Buyer Meaning<\/span>\r\n    <p>\r\n      A credible delivery commitment should reflect the specific order.\r\n      Buyers should avoid assuming that a lead time quoted for one standard model automatically applies to a mixed-model or customized OEM order.\r\n    <\/p>\r\n  <\/div>\r\n\r\n  <h2><span class=\"ez-toc-section\" id=\"12-audit-after-sales-support-before-the-first-complaint\"><\/span>12. Audit After-Sales Support Before the First Complaint<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n  <p>\r\n    Bulk-order after-sales support is more than fast messaging.\r\n    It is the ability to identify the product, obtain useful failure information and connect a complaint to the correct technical and production records.\r\n  <\/p>\r\n\r\n  <div class=\"p79-table-wrap\">\r\n    <table>\r\n      <thead>\r\n        <tr>\r\n          <th>Situation<\/th>\r\n          <th>Supplier Should Be Able To<\/th>\r\n        <\/tr>\r\n      <\/thead>\r\n      <tbody>\r\n        <tr>\r\n          <td>One unit is abnormal<\/td>\r\n          <td>Identify the model and request relevant diagnostic information<\/td>\r\n        <\/tr>\r\n        <tr>\r\n          <td>Several units show a similar issue<\/td>\r\n          <td>Check whether they share a batch or product revision<\/td>\r\n        <\/tr>\r\n        <tr>\r\n          <td>Buyer needs old technical files<\/td>\r\n          <td>Recover the correct manual, drawing or wiring information<\/td>\r\n        <\/tr>\r\n        <tr>\r\n          <td>Replacement is required<\/td>\r\n          <td>Confirm the correct current configuration before shipment<\/td>\r\n        <\/tr>\r\n        <tr>\r\n          <td>The product has been revised<\/td>\r\n          <td>Explain relevant differences from the earlier approved version<\/td>\r\n        <\/tr>\r\n      <\/tbody>\r\n    <\/table>\r\n  <\/div>\r\n\r\n  <p class=\"p79-table-conclusion\">\r\n    Procurement conclusion: after-sales capability becomes more valuable as repeat orders and installed quantities increase.\r\n  <\/p>\r\n\r\n  <h2><span class=\"ez-toc-section\" id=\"13-when-is-a-pilot-order-useful\"><\/span>13. When Is a Pilot Order Useful?<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n  <p>\r\n    A representative sample verifies one or a few units.\r\n    A pilot order can test whether the supplier can reproduce the approval through its real purchasing, assembly, inspection, packaging and shipping process.\r\n  <\/p>\r\n\r\n  <p>\r\n    A pilot order can be especially useful when the supplier is new, the private-label package is complex, several ATS variants are mixed in one order, or the buyer's internal approval process requires production-level verification.\r\n  <\/p>\r\n\r\n  <h3>A pilot order can help evaluate<\/h3>\r\n\r\n  <ul>\r\n    <li>Whether production units match the approved sample.<\/li>\r\n    <li>Whether the correct labels are applied to the correct ATS variants.<\/li>\r\n    <li>Whether manuals and packaging stay consistent.<\/li>\r\n    <li>Whether mixed models are separated correctly.<\/li>\r\n    <li>Whether inspection records are available as agreed.<\/li>\r\n    <li>Whether production and shipment communication is reliable.<\/li>\r\n  <\/ul>\r\n\r\n  <p>\r\n    A pilot order is a procurement risk-control option, not a universal standard requirement.\r\n    Whether it is necessary depends on order value, product complexity, project risk and the buyer's quality procedure.\r\n  <\/p>\r\n\r\n  <h2><span class=\"ez-toc-section\" id=\"14-use-a-pass-hold-fail-decision-for-critical-items\"><\/span>14. Use a Pass \/ Hold \/ Fail Decision for Critical Items<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n  <p>\r\n    A supplier with one serious technical gap should not receive a high approval score simply because many less-important administrative items passed.\r\n  <\/p>\r\n\r\n  <div class=\"p79-table-wrap\">\r\n    <table>\r\n      <thead>\r\n        <tr>\r\n          <th>Audit Area<\/th>\r\n          <th>Pass<\/th>\r\n          <th>Hold<\/th>\r\n          <th>Fail<\/th>\r\n        <\/tr>\r\n      <\/thead>\r\n      <tbody>\r\n        <tr>\r\n          <td>Exact product definition<\/td>\r\n          <td><span class=\"p79-status p79-pass\">PASS<\/span><br>Clear configuration<\/td>\r\n          <td><span class=\"p79-status p79-hold\">HOLD<\/span><br>Minor clarification needed<\/td>\r\n          <td><span class=\"p79-status p79-fail\">FAIL<\/span><br>Product cannot be identified<\/td>\r\n        <\/tr>\r\n        <tr>\r\n          <td>Technical documents<\/td>\r\n          <td><span class=\"p79-status p79-pass\">PASS<\/span><br>Documents match product<\/td>\r\n          <td><span class=\"p79-status p79-hold\">HOLD<\/span><br>Revision pending<\/td>\r\n          <td><span class=\"p79-status p79-fail\">FAIL<\/span><br>Documents conflict with sample<\/td>\r\n        <\/tr>\r\n        <tr>\r\n          <td>Required certification<\/td>\r\n          <td><span class=\"p79-status p79-pass\">PASS<\/span><br>Scope verified<\/td>\r\n          <td><span class=\"p79-status p79-hold\">HOLD<\/span><br>Evidence incomplete<\/td>\r\n          <td><span class=\"p79-status p79-fail\">FAIL<\/span><br>Required model not covered<\/td>\r\n        <\/tr>\r\n        <tr>\r\n          <td>Sample control<\/td>\r\n          <td><span class=\"p79-status p79-pass\">PASS<\/span><br>Reference frozen<\/td>\r\n          <td><span class=\"p79-status p79-hold\">HOLD<\/span><br>Corrections pending<\/td>\r\n          <td><span class=\"p79-status p79-fail\">FAIL<\/span><br>Approved configuration not reproducible<\/td>\r\n        <\/tr>\r\n        <tr>\r\n          <td>Change control<\/td>\r\n          <td><span class=\"p79-status p79-pass\">PASS<\/span><br>Controlled revisions<\/td>\r\n          <td><span class=\"p79-status p79-hold\">HOLD<\/span><br>Process unclear<\/td>\r\n          <td><span class=\"p79-status p79-fail\">FAIL<\/span><br>Important changes can occur uncontrolled<\/td>\r\n        <\/tr>\r\n        <tr>\r\n          <td>Traceability<\/td>\r\n          <td><span class=\"p79-status p79-pass\">PASS<\/span><br>Batch identifiable<\/td>\r\n          <td><span class=\"p79-status p79-hold\">HOLD<\/span><br>Partial records<\/td>\r\n          <td><span class=\"p79-status p79-fail\">FAIL<\/span><br>No practical batch identification<\/td>\r\n        <\/tr>\r\n      <\/tbody>\r\n    <\/table>\r\n  <\/div>\r\n\r\n  <p class=\"p79-table-conclusion\">\r\n    Procurement conclusion: unresolved critical failures should normally be closed before bulk-order release.\r\n  <\/p>\r\n\r\n  <h2><span class=\"ez-toc-section\" id=\"15-common-ats-supplier-audit-red-flags\"><\/span>15. Common ATS Supplier Audit Red Flags<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n  <div class=\"p79-stop\">\r\n    <span class=\"p79-label\">Investigate Further<\/span>\r\n    <ul>\r\n      <li>The supplier cannot explain its ATS model coding.<\/li>\r\n      <li>Materially different products use one generic datasheet.<\/li>\r\n      <li>The wiring diagram does not match the sample terminals.<\/li>\r\n      <li>A certificate is shown but its applicable model scope is unclear.<\/li>\r\n      <li>The supplier claims one certificate automatically covers every rating and pole configuration without showing supporting scope.<\/li>\r\n      <li>The sample nameplate conflicts with the quotation or datasheet.<\/li>\r\n      <li>No controlled sample or equivalent approved product reference is retained.<\/li>\r\n      <li>Important product changes can occur without a defined review process.<\/li>\r\n      <li>OEM artwork is approved only through informal screenshots with no revision control.<\/li>\r\n      <li>The supplier cannot explain what outgoing checks are actually performed.<\/li>\r\n      <li>Complaints cannot be connected to meaningful production information.<\/li>\r\n      <li>The supplier pushes for a large first order before the buyer has adequately evaluated the proposed configuration.<\/li>\r\n    <\/ul>\r\n  <\/div>\r\n\r\n  <h2><span class=\"ez-toc-section\" id=\"16-what-should-you-prepare-before-requesting-a-bulk-ats-quote\"><\/span>16. What Should You Prepare Before Requesting a Bulk ATS Quote?<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n  <p>\r\n    Supplier quality is easier to judge when the buyer sends a technically useful RFQ.\r\n    A vague enquiry can produce a vague quotation even from a capable supplier.\r\n  <\/p>\r\n\r\n  <div class=\"p79-checklist\">\r\n    <h3>Bulk ATS RFQ Checklist<\/h3>\r\n\r\n    <p class=\"p79-check\">System voltage and frequency.<\/p>\r\n    <p class=\"p79-check\">Single-phase or three-phase system.<\/p>\r\n    <p class=\"p79-check\">Required rated current or load information.<\/p>\r\n    <p class=\"p79-check\">Required 2P, 3P or 4P configuration.<\/p>\r\n    <p class=\"p79-check\">Normal and alternative source type.<\/p>\r\n    <p class=\"p79-check\">Required transfer architecture.<\/p>\r\n    <p class=\"p79-check\">Generator-start requirements where applicable.<\/p>\r\n    <p class=\"p79-check\">Dry-contact or remote-monitoring requirements where applicable.<\/p>\r\n    <p class=\"p79-check\">Installation method and dimensional limitations.<\/p>\r\n    <p class=\"p79-check\">Required product standard, certificate or project documentation.<\/p>\r\n    <p class=\"p79-check\">Destination market.<\/p>\r\n    <p class=\"p79-check\">Sample quantity and expected bulk quantity.<\/p>\r\n    <p class=\"p79-check\">OEM logo, label, packaging and manual requirements.<\/p>\r\n  <\/div>\r\n\r\n  <section class=\"p79-cta\">\r\n    <h3>Need to Review an ATS Configuration Before Sample Approval?<\/h3>\r\n\r\n    <p>\r\n      Send the required current, voltage, poles, source configuration, target market, quantity and OEM requirements.\r\n      LEEYEE can provide the relevant product information for technical confirmation before quotation or sample evaluation.\r\n    <\/p>\r\n\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  <\/section>\r\n\r\n  <h2><span class=\"ez-toc-section\" id=\"17-how-should-buyers-audit-leeyee\"><\/span>17. How Should Buyers Audit LEEYEE?<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n  <p>\r\n    Apply the same audit logic to LEEYEE that you would apply to another ATS supplier.\r\n  <\/p>\r\n\r\n  <p>\r\n    Before approving an order, confirm the proposed model, rated current, poles, voltage, control functions, drawings, wiring information and any conformity documents required by the destination market or project.\r\n  <\/p>\r\n\r\n  <p>\r\n    LEEYEE's standard ATS supply is based on a compact integrated automatic transfer switch format primarily intended for ordinary open-transition transfer applications.\r\n    Single-phase \/ three-phase, current and 2P \/ 3P \/ 4P availability must be confirmed against the exact model proposed for the order.\r\n  <\/p>\r\n\r\n  <p>\r\n    Closed-transition systems, bypass\/isolation arrangements, maintenance-bypass systems or other advanced architectures should not be assumed to be standard versions of the compact ATS.\r\n    They require separate engineering and supply confirmation.\r\n  <\/p>\r\n\r\n  <p>\r\n    OEM logo, technical label, packaging, manuals, auxiliary functions and conformity-document requirements should also be confirmed before mass production.\r\n  <\/p>\r\n\r\n  <div class=\"p79-good\">\r\n    <span class=\"p79-label\">Recommended Procurement Path<\/span>\r\n    <p>\r\n      Requirement confirmation \u2192 model and document review \u2192 certificate-scope verification where required \u2192 sample evaluation \u2192 approved reference \u2192 OEM artwork freeze \u2192 production \/ inspection confirmation \u2192 shipment \u2192 batch-record retention.\r\n    <\/p>\r\n  <\/div>\r\n\r\n  <h2><span class=\"ez-toc-section\" id=\"ats-supplier-audit-faq\"><\/span>ATS Supplier Audit FAQ<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n  <div class=\"p79-faq\">\r\n    <h3>What is the most important thing to check when auditing an ATS supplier?<\/h3>\r\n    <p>\r\n      Confirm whether the supplier can consistently reproduce the exact ATS configuration approved during sample evaluation.\r\n      This links product specification, document control, production consistency, OEM management and traceability.\r\n    <\/p>\r\n  <\/div>\r\n\r\n  <div class=\"p79-faq\">\r\n    <h3>Is an ISO 9001 certificate enough to approve an ATS supplier?<\/h3>\r\n    <p>\r\n      No. ISO guidance distinguishes quality-management-system conformity from product conformity. [3]\r\n      A QMS certificate can support supplier evaluation, but the ATS itself still needs the product-specific technical and conformity evidence required by the project or market.\r\n    <\/p>\r\n  <\/div>\r\n\r\n  <div class=\"p79-faq\">\r\n    <h3>How should a buyer verify an ATS certificate?<\/h3>\r\n    <p>\r\n      Check the certificate holder, standard, model designation, ratings, annexes and associated report information.\r\n      When an official certification database is available, use it to verify the relevant record.\r\n      Do not assume one document covers every product in a supplier's catalogue.\r\n    <\/p>\r\n  <\/div>\r\n\r\n  <div class=\"p79-faq\">\r\n    <h3>Should I request an ATS sample before a bulk order?<\/h3>\r\n    <p>\r\n      For a new supplier, new ATS configuration or private-label project, representative sample evaluation is a strong procurement risk-control step.\r\n      The sample should be checked against the agreed technical specification and later used as a controlled production reference where practical.\r\n    <\/p>\r\n  <\/div>\r\n\r\n  <div class=\"p79-faq\">\r\n    <h3>What is a golden sample in ATS procurement?<\/h3>\r\n    <p>\r\n      It is an approved physical reference used to define what later production should reproduce.\r\n      The term itself is a procurement practice rather than an ATS standard requirement.\r\n      Buyers may use another controlled approval method if it provides equivalent traceability.\r\n    <\/p>\r\n  <\/div>\r\n\r\n  <div class=\"p79-faq\">\r\n    <h3>Can one ATS certificate cover every current rating and pole configuration?<\/h3>\r\n    <p>\r\n      Do not assume so.\r\n      The actual certificate, report and model scope must be checked because covered ratings and configurations depend on the specific conformity documentation.\r\n    <\/p>\r\n  <\/div>\r\n\r\n  <div class=\"p79-faq\">\r\n    <h3>What should an ATS supplier provide before bulk-order approval?<\/h3>\r\n    <p>\r\n      At minimum, the buyer should be able to identify the proposed ATS through appropriate technical information such as its model, electrical ratings, pole configuration, relevant wiring and installation documents, and any conformity evidence required by the project.\r\n      The exact document package should be agreed for the order.\r\n    <\/p>\r\n  <\/div>\r\n\r\n  <div class=\"p79-faq\">\r\n    <h3>Why is batch traceability important for ATS distributors?<\/h3>\r\n    <p>\r\n      Traceability helps determine whether a field issue is isolated or potentially connected to a particular product revision, production period or shipment.\r\n      It also supports more efficient replacement and root-cause communication.\r\n    <\/p>\r\n  <\/div>\r\n\r\n  <section class=\"p79-cta\">\r\n    <h3>Planning a Private-Label or Bulk ATS Order?<\/h3>\r\n\r\n    <p>\r\n      Prepare your voltage, current, poles, source configuration, required functions, destination market, quantity and OEM requirements first.\r\n      Technical confirmation before production is easier than correcting a model, label or documentation problem after shipment.\r\n    <\/p>\r\n\r\n    <button\r\n      type=\"button\"\r\n      class=\"leeyee-about-btn-light leeyee-site-popup-btn\"\r\n      aria-label=\"Send ATS Bulk Order Requirements\">\r\n      <span class=\"w-btn-label\">Send ATS Bulk Order Requirements<\/span>\r\n    <\/button>\r\n  <\/section>\r\n\r\n  <section class=\"p79-sources\">\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>\r\n        IEC \u2014 IEC 60947-6-1:2026,\r\n        <em>Low-voltage switchgear and controlgear \u2013 Part 6-1: Multiple function equipment \u2013 Transfer switching equipment<\/em>,\r\n        Edition 4.0.\r\n        <a href=\"https:\/\/webstore.iec.ch\/en\/publication\/90494\" target=\"_blank\" rel=\"noopener noreferrer\">Official IEC publication<\/a>.\r\n      <\/li>\r\n\r\n      <li>\r\n        UL Solutions \u2014\r\n        <em>Switch Certification and Evaluation Services<\/em>, including applicable transfer switch equipment evaluated under UL 1008.\r\n        <a href=\"https:\/\/www.ul.com\/services\/switch-certification-and-evaluation-services\" target=\"_blank\" rel=\"noopener noreferrer\">UL Solutions<\/a>.\r\n      <\/li>\r\n\r\n      <li>\r\n        International Organization for Standardization (ISO) \u2014\r\n        <em>ISO 9001 \u2013 What does it mean in the supply chain?<\/em>\r\n        <a href=\"https:\/\/www.iso.org\/publication\/PUB100304.html\" target=\"_blank\" rel=\"noopener noreferrer\">ISO supplier-selection guidance<\/a>.\r\n      <\/li>\r\n\r\n      <li>\r\n        IECEE \/ IEC \u2014\r\n        IECEE TRF 60947-6-1E:2026,\r\n        Test Report Form applicable to IEC 60947-6-1:2026 for use in conjunction with IEC 60947-1:2020.\r\n        <a href=\"https:\/\/webstore.iec.ch\/en\/publication\/114039\" target=\"_blank\" rel=\"noopener noreferrer\">Official IEC \/ IECEE Test Report Form<\/a>.\r\n      <\/li>\r\n    <\/ol>\r\n  <\/section>\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 Procurement &amp; Supplier Evaluation A good automatic transfer switch sample does not automatically mean a supplier is ready for a bulk order. For an importer, distributor, generator-set integrator or private-label buyer, the real question is whether the supplier can reproduce the approved ATS consistently across future production batches. A useful ATS supplier audit therefore&#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-31764","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 v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>ATS Supplier Audit Checklist for Bulk Orders | B2B Buyer Guide<\/title>\n<meta name=\"description\" content=\"Audit an ATS supplier before a bulk order. Verify models, certificates, sample consistency, factory testing, OEM controls, traceability, lead-time management and after-sales support.\" \/>\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\/de\/ats-supplier-audit-checklist\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ATS Supplier Audit Checklist for Bulk Orders | B2B Buyer Guide\" \/>\n<meta property=\"og:description\" content=\"Audit an ATS supplier before a bulk order. Verify models, certificates, sample consistency, factory testing, OEM controls, traceability, lead-time management and after-sales support.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.cnspd.com\/de\/ats-supplier-audit-checklist\/\" \/>\n<meta property=\"og:site_name\" content=\"Surge Protector, Surge Arrestor, Isolating Switch - LEEYEE\" \/>\n<meta property=\"article:published_time\" content=\"2026-10-24T07:17:23+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-24T07:17:56+00:00\" \/>\n<meta name=\"author\" content=\"Devin Ling\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Verfasst von\" \/>\n\t<meta name=\"twitter:data1\" content=\"Devin Ling\" \/>\n\t<meta name=\"twitter:label2\" content=\"Gesch\u00e4tzte Lesezeit\" \/>\n\t<meta name=\"twitter:data2\" content=\"18\u00a0Minuten\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/ats-supplier-audit-checklist\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/ats-supplier-audit-checklist\\\/\"},\"author\":{\"name\":\"Devin Ling\",\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/#\\\/schema\\\/person\\\/f49dbafe62c5b47100ad2d9f88af92d3\"},\"headline\":\"ATS Supplier Audit Checklist for Bulk Orders: 10 Checks Before Approval\",\"datePublished\":\"2026-10-24T07:17:23+00:00\",\"dateModified\":\"2026-10-24T07:17:56+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/ats-supplier-audit-checklist\\\/\"},\"wordCount\":3802,\"articleSection\":[\"Isolator &amp; Switching\",\"News\",\"Technical Guides\"],\"inLanguage\":\"de\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/ats-supplier-audit-checklist\\\/\",\"url\":\"https:\\\/\\\/www.cnspd.com\\\/ats-supplier-audit-checklist\\\/\",\"name\":\"ATS Supplier Audit Checklist for Bulk Orders | B2B Buyer Guide\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/#website\"},\"datePublished\":\"2026-10-24T07:17:23+00:00\",\"dateModified\":\"2026-10-24T07:17:56+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/#\\\/schema\\\/person\\\/f49dbafe62c5b47100ad2d9f88af92d3\"},\"description\":\"Audit an ATS supplier before a bulk order. Verify models, certificates, sample consistency, factory testing, OEM controls, traceability, lead-time management and after-sales support.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/ats-supplier-audit-checklist\\\/#breadcrumb\"},\"inLanguage\":\"de\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.cnspd.com\\\/ats-supplier-audit-checklist\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/ats-supplier-audit-checklist\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.cnspd.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"ATS Supplier Audit Checklist for Bulk Orders: 10 Checks Before Approval\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/#website\",\"url\":\"https:\\\/\\\/www.cnspd.com\\\/\",\"name\":\"Surge Protector, Surge Arrestor, Isolating Switch - LEEYEE\",\"description\":\"Surge Protector, Surge Arrestor, Isolating Switch - LEEYEE\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.cnspd.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"de\"},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.cnspd.com\\\/#\\\/schema\\\/person\\\/f49dbafe62c5b47100ad2d9f88af92d3\",\"name\":\"Devin Ling\",\"sameAs\":[\"https:\\\/\\\/cnspd.com\\\/\"],\"url\":\"https:\\\/\\\/www.cnspd.com\\\/de\\\/author\\\/devin\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"ATS Supplier Audit Checklist for Bulk Orders | B2B Buyer Guide","description":"Audit an ATS supplier before a bulk order. Verify models, certificates, sample consistency, factory testing, OEM controls, traceability, lead-time management and after-sales support.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.cnspd.com\/de\/ats-supplier-audit-checklist\/","og_locale":"de_DE","og_type":"article","og_title":"ATS Supplier Audit Checklist for Bulk Orders | B2B Buyer Guide","og_description":"Audit an ATS supplier before a bulk order. Verify models, certificates, sample consistency, factory testing, OEM controls, traceability, lead-time management and after-sales support.","og_url":"https:\/\/www.cnspd.com\/de\/ats-supplier-audit-checklist\/","og_site_name":"Surge Protector, Surge Arrestor, Isolating Switch - LEEYEE","article_published_time":"2026-10-24T07:17:23+00:00","article_modified_time":"2026-10-24T07:17:56+00:00","author":"Devin Ling","twitter_card":"summary_large_image","twitter_misc":{"Verfasst von":"Devin Ling","Gesch\u00e4tzte Lesezeit":"18\u00a0Minuten"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.cnspd.com\/ats-supplier-audit-checklist\/#article","isPartOf":{"@id":"https:\/\/www.cnspd.com\/ats-supplier-audit-checklist\/"},"author":{"name":"Devin Ling","@id":"https:\/\/www.cnspd.com\/#\/schema\/person\/f49dbafe62c5b47100ad2d9f88af92d3"},"headline":"ATS Supplier Audit Checklist for Bulk Orders: 10 Checks Before Approval","datePublished":"2026-10-24T07:17:23+00:00","dateModified":"2026-10-24T07:17:56+00:00","mainEntityOfPage":{"@id":"https:\/\/www.cnspd.com\/ats-supplier-audit-checklist\/"},"wordCount":3802,"articleSection":["Isolator &amp; Switching","News","Technical Guides"],"inLanguage":"de"},{"@type":"WebPage","@id":"https:\/\/www.cnspd.com\/ats-supplier-audit-checklist\/","url":"https:\/\/www.cnspd.com\/ats-supplier-audit-checklist\/","name":"ATS Supplier Audit Checklist for Bulk Orders | B2B Buyer Guide","isPartOf":{"@id":"https:\/\/www.cnspd.com\/#website"},"datePublished":"2026-10-24T07:17:23+00:00","dateModified":"2026-10-24T07:17:56+00:00","author":{"@id":"https:\/\/www.cnspd.com\/#\/schema\/person\/f49dbafe62c5b47100ad2d9f88af92d3"},"description":"Audit an ATS supplier before a bulk order. Verify models, certificates, sample consistency, factory testing, OEM controls, traceability, lead-time management and after-sales support.","breadcrumb":{"@id":"https:\/\/www.cnspd.com\/ats-supplier-audit-checklist\/#breadcrumb"},"inLanguage":"de","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.cnspd.com\/ats-supplier-audit-checklist\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.cnspd.com\/ats-supplier-audit-checklist\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.cnspd.com\/"},{"@type":"ListItem","position":2,"name":"ATS Supplier Audit Checklist for Bulk Orders: 10 Checks Before Approval"}]},{"@type":"WebSite","@id":"https:\/\/www.cnspd.com\/#website","url":"https:\/\/www.cnspd.com\/","name":"\u00dcberspannungsschutz, \u00dcberspannungsableiter, Isolierschalter - LEEYEE","description":"\u00dcberspannungsschutz, \u00dcberspannungsableiter, Isolierschalter - LEEYEE","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.cnspd.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"de"},{"@type":"Person","@id":"https:\/\/www.cnspd.com\/#\/schema\/person\/f49dbafe62c5b47100ad2d9f88af92d3","name":"Devin Ling","sameAs":["https:\/\/cnspd.com\/"],"url":"https:\/\/www.cnspd.com\/de\/author\/devin\/"}]}},"_links":{"self":[{"href":"https:\/\/www.cnspd.com\/de\/wp-json\/wp\/v2\/posts\/31764","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.cnspd.com\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.cnspd.com\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.cnspd.com\/de\/wp-json\/wp\/v2\/users\/18"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cnspd.com\/de\/wp-json\/wp\/v2\/comments?post=31764"}],"version-history":[{"count":4,"href":"https:\/\/www.cnspd.com\/de\/wp-json\/wp\/v2\/posts\/31764\/revisions"}],"predecessor-version":[{"id":31769,"href":"https:\/\/www.cnspd.com\/de\/wp-json\/wp\/v2\/posts\/31764\/revisions\/31769"}],"wp:attachment":[{"href":"https:\/\/www.cnspd.com\/de\/wp-json\/wp\/v2\/media?parent=31764"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cnspd.com\/de\/wp-json\/wp\/v2\/categories?post=31764"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cnspd.com\/de\/wp-json\/wp\/v2\/tags?post=31764"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}