{"id":18848,"date":"2026-10-10T17:07:54","date_gmt":"2026-10-10T09:07:54","guid":{"rendered":"https:\/\/www.wehopower.com\/news\/ndr-dr-and-edr-din-rail-power-supply-names-read-the-full-model-before-approving-a-substitute\/"},"modified":"2026-10-10T17:07:54","modified_gmt":"2026-10-10T09:07:54","slug":"ndr-dr-and-edr-din-rail-power-supply-names-read-the-full-model-before-approving-a-substitute","status":"publish","type":"news","link":"https:\/\/www.wehopower.com\/pl\/news\/ndr-dr-and-edr-din-rail-power-supply-names-read-the-full-model-before-approving-a-substitute\/","title":{"rendered":"NDR, DR and EDR DIN-Rail Power Supply Names: Read the Full Model Before Approving a Substitute"},"content":{"rendered":"<div class=\"quick-answer\">\n<p>A DIN-rail family prefix is a catalog locator, not a substitute-approval rule. Read the complete NDR, DR or EDR model, its specific output row, applicable input conditions and order-linked drawing before accepting a replacement. A shared \u201c24\u201d suffix does not make two supplies electrically or mechanically interchangeable.<\/p>\n<\/div>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Spis tre\u015bci<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Prze\u0142\u0105cznik Spisu Tre\u015bci\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">D\u017awignia kolankowa<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/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=\"https:\/\/www.wehopower.com\/pl\/news\/ndr-dr-and-edr-din-rail-power-supply-names-read-the-full-model-before-approving-a-substitute\/#Start_with_the_complete_identifier_not_the_family_nickname\" >Start with the complete identifier, not the family nickname<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.wehopower.com\/pl\/news\/ndr-dr-and-edr-din-rail-power-supply-names-read-the-full-model-before-approving-a-substitute\/#A_number_inside_the_name_is_not_every_variants_power_rating\" >A number inside the name is not every variant&#8217;s power rating<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.wehopower.com\/pl\/news\/ndr-dr-and-edr-din-rail-power-supply-names-read-the-full-model-before-approving-a-substitute\/#Common_voltage_does_not_approve_a_cross-family_replacement\" >Common voltage does not approve a cross-family replacement<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.wehopower.com\/pl\/news\/ndr-dr-and-edr-din-rail-power-supply-names-read-the-full-model-before-approving-a-substitute\/#Record_the_actual_sample_and_the_applicable_drawing_together\" >Record the actual sample and the applicable drawing together<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.wehopower.com\/pl\/news\/ndr-dr-and-edr-din-rail-power-supply-names-read-the-full-model-before-approving-a-substitute\/#Use_a_substitution_record_that_preserves_the_boundary\" >Use a substitution record that preserves the boundary<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.wehopower.com\/pl\/news\/ndr-dr-and-edr-din-rail-power-supply-names-read-the-full-model-before-approving-a-substitute\/#Frequently_asked_questions\" >Frequently asked questions<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.wehopower.com\/pl\/news\/ndr-dr-and-edr-din-rail-power-supply-names-read-the-full-model-before-approving-a-substitute\/#Can_I_replace_any_DR_supply_with_an_NDR_model_of_the_same_voltage\" >Can I replace any DR supply with an NDR model of the same voltage?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.wehopower.com\/pl\/news\/ndr-dr-and-edr-din-rail-power-supply-names-read-the-full-model-before-approving-a-substitute\/#Does_%E2%80%9C60%E2%80%9D_mean_every_DR-60_variant_supplies_60_W\" >Does \u201c60\u201d mean every DR-60 variant supplies 60 W?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.wehopower.com\/pl\/news\/ndr-dr-and-edr-din-rail-power-supply-names-read-the-full-model-before-approving-a-substitute\/#Does_%E2%80%9C24%E2%80%9D_identify_all_the_installation_requirements\" >Does \u201c24\u201d identify all the installation requirements?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.wehopower.com\/pl\/news\/ndr-dr-and-edr-din-rail-power-supply-names-read-the-full-model-before-approving-a-substitute\/#Which_source_should_I_use_when_the_sample_and_generic_pin_table_disagree\" >Which source should I use when the sample and generic pin table disagree?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.wehopower.com\/pl\/news\/ndr-dr-and-edr-din-rail-power-supply-names-read-the-full-model-before-approving-a-substitute\/#Are_the_two_scene_images_real_customer_installations\" >Are the two scene images real customer installations?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Start_with_the_complete_identifier_not_the_family_nickname\"><\/span>Start with the complete identifier, not the family nickname<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>An equipment builder may receive a quotation for \u201ca DR supply\u201d while the maintenance record says only \u201c24 V.\u201d Neither description uniquely identifies the component. WEHO lists DR, NDR and EDR as separate DIN-rail product families. The useful purchasing record is the complete printed identifier together with the document revision and the actual sample photograph.<\/p>\n<p>For the unit illustrated here, that identifier is <strong>EDR-150-24<\/strong>. Its authentic nameplate identifies a 24 V, 6.5 A output and a 200\u2013240VAC input. The supported example in this article uses the documented 230 VAC input condition. The suffix \u201c24\u201d is consistent with the corresponding output-voltage row; it does not encode the current limit, permitted ambient temperature, terminal arrangement or approvals.<\/p>\n<figure><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/10\/01-application-a-10.png?quality=85&strip=all\" alt=\"NDR, DR and EDR DIN-Rail Power Supply Names: Read the Full Model Before Approving a Substitute  title=\" width=\"1536\" height=\"1024\" dr and edr din-rail power supply names: read the full model before approving substitute title =\"\"><figcaption>Source-referenced EDR-150-24 installation in the dry control compartment of an air-handling unit. The illustrated branch is conditional on an accepted 230 VAC input and actual 24 V control-load verification; it does not power the fan motor or establish machine compatibility.<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"A_number_inside_the_name_is_not_every_variants_power_rating\"><\/span>A number inside the name is not every variant&#8217;s power rating<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The <a href=\"https:\/\/www.wehopower.com\/pl\/product\/china-oem-din-rail-60w-single-output-switch-power-supply-transformer\/\">DR-60 family table<\/a> demonstrates why a prefix-and-number shortcut is inadequate. It lists a 5 V variant at 6.5 A, a 12 V variant at 4.5 A, and the 24 V variant at 2.5 A. The listed power values are therefore not identical across all variants carrying \u201cDR-60.\u201d Select the exact row, not an assumed rating taken from the family label.<\/p>\n<p>Likewise, a model\u2019s input condition can matter to the available output. The retained complete EDR-150 specification separates a 24 V output-current row at 115 VAC from its row at 230 VAC. A purchasing description that copies a higher current without its input condition loses information even when the full model number is correct. This is a reason to attach the applicable specification, not a recommendation to operate the illustrated EDR unit under another family\u2019s conditions.<\/p>\n<table>\n<thead>\n<tr>\n<th>Example full identifier<\/th>\n<th>What the name helps you find<\/th>\n<th>What still requires its own evidence<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>DR-60-24<\/td>\n<td>DR-60 family, corresponding 24 V variant<\/td>\n<td>Specific current row, sample markings, applicable pin map and installation limits<\/td>\n<\/tr>\n<tr>\n<td>NDR-75-24<\/td>\n<td>NDR-75 family, corresponding 24 V variant<\/td>\n<td>Exact specification revision, terminal layout and mechanical envelope<\/td>\n<\/tr>\n<tr>\n<td>EDR-150-24<\/td>\n<td>EDR-150 family, corresponding 24 V variant<\/td>\n<td>Output conditions at the actual input, order-linked drawing and acceptance criteria<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"Common_voltage_does_not_approve_a_cross-family_replacement\"><\/span>Common voltage does not approve a cross-family replacement<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>WEHO\u2019s <a href=\"https:\/\/www.wehopower.com\/pl\/product\/ndr-dinrail-75w-ac-to-dc-single-output-switching-power-supply\/\">NDR-75<\/a> I <a href=\"https:\/\/www.wehopower.com\/pl\/product\/edr-150-150w-industrial-din-rail-ac-to-dc-single-output-switching-power-supply\/\">EDR-150<\/a> pages also include 24 V models. That common voltage is only one comparison field. A replacement review must still close the actual load budget, startup behavior, protective coordination, input supply, installation environment and mechanical fit. The letters themselves do not prove that one family is universally better, equivalent or suitable for a particular machine.<\/p>\n<p>Do not expand NDR, DR or EDR into an invented universal acronym meaning. Use the names exactly as WEHO publishes them. Descriptions such as \u201ceconomical\u201d on an individual product page are not a cross-family quality ranking or evidence that a particular substitute has been tested in your equipment.<\/p>\n<figure><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/10\/02-application-b-10.png?quality=85&strip=all\" alt=\"NDR, DR and EDR DIN-Rail Power Supply Names: Read the Full Model Before Approving a Substitute  title=\" width=\"1536\" height=\"1024\" dr and edr din-rail power supply names: read the full model before approving substitute title =\"\"><figcaption>A different protected gate-controller enclosure with the EDR-150-24 on a lower rail. The supply is shown as a possible 24 V auxiliary-control branch, not a gate-motor supply or a tested system. Its actual order, input and load still need acceptance.<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Record_the_actual_sample_and_the_applicable_drawing_together\"><\/span>Record the actual sample and the applicable drawing together<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The illustrated EDR-150-24 has a narrow blue printed front and silver metal enclosure, with four upper output positions and three lower input\/earth positions. Its complete mechanical drawing supports a 40 mm front width, 125.2 mm upright height and 113.5 mm front-to-rear depth, with actual rear DIN-rail mounting evidence. These facts identify this sample; they are not dimensions for every DR, NDR or EDR unit.<\/p>\n<p>A receiving inspection should associate the sample with the order, full model, serial or lot identification, supplied specification and accepted drawing. Keep nominal nameplate information separate from the stated operating range. This authentic EDR sample is marked 200\u2013240VAC and 50\/60Hz; the retained family sheet and current product page state broader operating ranges with different boundaries. The illustrated branch therefore remains at the common documented 230 VAC condition. Do not turn different operating statements into a newly edited nameplate.<\/p>\n<figure><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/10\/03-product-detail-10.png?quality=85&strip=all\" alt=\"NDR, DR and EDR DIN-Rail Power Supply Names: Read the Full Model Before Approving a Substitute  title=\" width=\"1536\" height=\"1024\" dr and edr din-rail power supply names: read the full model before approving substitute title =\"\"><figcaption>Source-faithful detail of the authentic EDR-150-24 sample, including its original model, input and output markings. No trademark, rating text or terminal legend has been rewritten.<\/figcaption><\/figure>\n<div class=\"note\">\n<p><strong>An unresolved difference must remain visible in the review record.<\/strong> A separately retained DR-60-24 sample provides a useful counterexample: its physical DC legends group the left output pair as \u2212V and the right pair as +V, while its generic numbered pin table assigns those groups differently. That DR sample was excluded from the application-image selection rather than connected by guesswork. The EDR sample used in the scenes has source-consistent terminal evidence. Obtain the order-applicable wiring drawing and reconcile it with the supplied unit before electrical termination; a family nickname does not resolve a revision discrepancy.<\/p>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"Use_a_substitution_record_that_preserves_the_boundary\"><\/span>Use a substitution record that preserves the boundary<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>For an OEM bill of materials, retain the old and proposed full identifiers in separate fields. Add the accepted document revisions, actual input conditions, output requirements, mounting envelope and terminal mapping. Mark an unresolved field as pending rather than treating a matching suffix as approval. If a sample does not match the accepted documentation, the correct next step is supplier clarification and an updated controlled record\u2014not a visual or editorial rewrite that conceals the mismatch.<\/p>\n<p>This naming guide stops at identifying the right evidence. It does not certify a substitute, recommend live adjustment or supply a machine-specific current budget. Qualified personnel must complete the electrical and safety acceptance for the actual order and installation.<\/p>\n<figure><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/10\/04-engineering-context-14.png?quality=85&strip=all\" alt=\"NDR, DR and EDR DIN-Rail Power Supply Names: Read the Full Model Before Approving a Substitute  title=\" width=\"1536\" height=\"1024\" dr and edr din-rail power supply names: read the full model before approving substitute title =\"\"><figcaption>Full-model identity workflow: family and voltage help locate a document; current, conditions, drawing and actual sample still require separate acceptance. This engineering diagram is not a wiring schematic.<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Frequently_asked_questions\"><\/span>Frequently asked questions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Can_I_replace_any_DR_supply_with_an_NDR_model_of_the_same_voltage\"><\/span>Can I replace any DR supply with an NDR model of the same voltage?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>No. Equal nominal voltage does not establish current capability, electrical behavior, terminal mapping or installation fit. Review the two complete models and their applicable documents.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Does_%E2%80%9C60%E2%80%9D_mean_every_DR-60_variant_supplies_60_W\"><\/span>Does \u201c60\u201d mean every DR-60 variant supplies 60 W?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>No. Use the full-model row; the public family table includes variants with different listed powers.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Does_%E2%80%9C24%E2%80%9D_identify_all_the_installation_requirements\"><\/span>Does \u201c24\u201d identify all the installation requirements?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>No. For these example identifiers it corresponds to the voltage variant, not a complete application or approval code.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Which_source_should_I_use_when_the_sample_and_generic_pin_table_disagree\"><\/span>Which source should I use when the sample and generic pin table disagree?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Neither disagreement should be ignored. Request and accept the wiring document applicable to the actual order before connecting conductors. Preserve the genuine sample image and the discrepancy record.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Are_the_two_scene_images_real_customer_installations\"><\/span>Are the two scene images real customer installations?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>No. They are source-referenced technical illustrations of conditional 230 VAC to 24 V auxiliary-control installations. They do not prove a tested load, customer approval or an electrically energized photograph.<\/p>","protected":false},"excerpt":{"rendered":"<p>A complete-identifier checklist for OEM replacement review: separate a family name from exact ratings, order-linked drawings and unresolved sample differences.<\/p>","protected":false},"author":2,"featured_media":18844,"parent":0,"menu_order":12,"comment_status":"","ping_status":"","template":"","format":"standard","meta":{"_acf_changed":false,"_joinchat":[],"footnotes":""},"news_category":[149,284],"class_list":["post-18848","news","type-news","status-publish","format-standard","has-post-thumbnail","hentry","news_category-blog","news_category-product-articles","entry"],"acf":[],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/www.wehopower.com\/pl\/wp-json\/wp\/v2\/news\/18848","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wehopower.com\/pl\/wp-json\/wp\/v2\/news"}],"about":[{"href":"https:\/\/www.wehopower.com\/pl\/wp-json\/wp\/v2\/types\/news"}],"author":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/pl\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/pl\/wp-json\/wp\/v2\/comments?post=18848"}],"version-history":[{"count":0,"href":"https:\/\/www.wehopower.com\/pl\/wp-json\/wp\/v2\/news\/18848\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/pl\/wp-json\/wp\/v2\/media\/18844"}],"wp:attachment":[{"href":"https:\/\/www.wehopower.com\/pl\/wp-json\/wp\/v2\/media?parent=18848"}],"wp:term":[{"taxonomy":"news_category","embeddable":true,"href":"https:\/\/www.wehopower.com\/pl\/wp-json\/wp\/v2\/news_category?post=18848"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}