{"id":20732,"date":"2026-11-03T10:09:07","date_gmt":"2026-11-03T02:09:07","guid":{"rendered":"https:\/\/www.wehopower.com\/news\/inverter-output-frequency-50hz-60hz-order-check\/"},"modified":"2026-11-03T10:09:07","modified_gmt":"2026-11-03T02:09:07","slug":"inverter-output-frequency-50hz-60hz-order-check","status":"publish","type":"news","link":"https:\/\/www.wehopower.com\/it\/news\/inverter-output-frequency-50hz-60hz-order-check\/","title":{"rendered":"Inverter Output Frequency: Confirm 50 Hz or 60 Hz Before Ordering"},"content":{"rendered":"<figure class=\"hero\"><a href=\"https:\/\/www.wehopower.com\/it\/product\/300w-12v-24v-48v-dc-ac-110v-220v-pure-sine-wave-power-inverter\/\"><img decoding=\"async\" src=\"https:\/\/www.wehopower.com\/wp-content\/uploads\/2026\/11\/hero-7.webp\" alt=\"Inverter Output Frequency: Confirm 50 Hz or 60 Hz Before Ordering  title=\" fetchpriority=\"high\" inverter output frequency: confirm 50 hz or 60 before ordering title=\"\"><\/a><figcaption>Conceptual frequency-check bench: the WHP-300 product photograph is connected through an enclosed measurement adapter to a receiver, with a separate frequency-counter signal route. The display shows mode only; no output-frequency result or adapter rating is established. AI-assisted illustration.<\/figcaption><a class=\"original-link\" href=\"https:\/\/www.wehopower.com\/wp-content\/uploads\/2026\/11\/original.jpg\">View original product image<\/a><\/figure>\n<p><strong>Specify an inverter\u2019s AC output frequency from the connected equipment\u2019s requirements, then confirm that exact option on the order and received unit.<\/strong> A matching voltage and plug shape do not settle the frequency question. \u201c50 Hz or 60 Hz\u201d in a family table does not establish that either frequency can be selected on every unit.<\/p>\n<p>This guide helps an OEM buying a small AC power module create a frequency acceptance record. The <a href=\"https:\/\/www.wehopower.com\/it\/product\/300w-12v-24v-48v-dc-ac-110v-220v-pure-sine-wave-power-inverter\/\">WEHO WHP300W inverter family<\/a> provides the product reference; a frequency check remains separate from load-power and battery-input approval.<\/p>\n<nav class=\"toc\" aria-label=\"On this page\">\n<ol>\n<li><a href=\"#read-load-frequency\">Read the load requirement before choosing the inverter option<\/a><\/li>\n<li><a href=\"#family-options\">Keep family options separate from the photographed unit<\/a><\/li>\n<li><a href=\"#frequency-matrix\">Build a receiver-by-receiver frequency matrix<\/a><\/li>\n<li><a href=\"#period-example\">Use period as a cross-check, not as a substitute for a test plan<\/a><\/li>\n<li><a href=\"#release-frequency\">Release a configuration and a result together<\/a><\/li>\n<\/ol>\n<\/nav>\n<section id=\"read-load-frequency\">\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\">Sommario<\/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=\"Attiva\/disattiva Sommario\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Attiva\/disattiva<\/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\/it\/news\/inverter-output-frequency-50hz-60hz-order-check\/#Read_the_load_requirement_before_choosing_the_inverter_option\" >Read the load requirement before choosing the inverter option<\/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\/it\/news\/inverter-output-frequency-50hz-60hz-order-check\/#Keep_family_options_separate_from_the_photographed_unit\" >Keep family options separate from the photographed unit<\/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\/it\/news\/inverter-output-frequency-50hz-60hz-order-check\/#Build_a_receiver-by-receiver_frequency_matrix\" >Build a receiver-by-receiver frequency matrix<\/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\/it\/news\/inverter-output-frequency-50hz-60hz-order-check\/#Use_period_as_a_cross-check_not_as_a_substitute_for_a_test_plan\" >Use period as a cross-check, not as a substitute for a test plan<\/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\/it\/news\/inverter-output-frequency-50hz-60hz-order-check\/#Release_a_configuration_and_a_result_together\" >Release a configuration and a result together<\/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\/it\/news\/inverter-output-frequency-50hz-60hz-order-check\/#Specify_the_required_AC_configuration\" >Specify the required AC configuration<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.wehopower.com\/it\/news\/inverter-output-frequency-50hz-60hz-order-check\/#AC_output_frequency_acceptance_record\" >AC output frequency acceptance record<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.wehopower.com\/it\/news\/inverter-output-frequency-50hz-60hz-order-check\/#Sources_and_further_reading\" >Sources and further reading<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Read_the_load_requirement_before_choosing_the_inverter_option\"><\/span>Read the load requirement before choosing the inverter option<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Collect the nameplate and instruction sheet for every AC receiver that the equipment can energize. A marking of 50\/60 Hz permits a different discussion from 50 Hz only,60 Hz only or an absent frequency specification. Record a source document instead of converting an absent value into an assumed wide range.<\/p>\n<p>Separate an equipment input requirement from an internal motor or timing reference. A receiver containing an electronic supply may tolerate both mains frequencies, but that conclusion must come from its documentation. A motor, transformer, fan or line-frequency timing circuit may have additional conditions. The device\u2019s nominal wattage cannot answer them.<\/p>\n<p>Where a controller offers several input versions, identify the supplied version. Do not use an export brochure for one option as permission for a different installed assembly.<\/p>\n<\/section>\n<section id=\"family-options\">\n<h2><span class=\"ez-toc-section\" id=\"Keep_family_options_separate_from_the_photographed_unit\"><\/span>Keep family options separate from the photographed unit<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The current WEHO product table lists 50 Hz\u00b10.5 Hz or 60 Hz\u00b10.5 Hz output options for the 300 W family. It also presents several AC voltage and DC input choices. These are separate purchasing decisions, not evidence of one universal unit.<\/p>\n<p>The official photograph visibly identifies a 300 W pure-sine inverter marked 12 V. It is useful for recognizing that hardware, but the visible marking does not establish the ordered AC frequency. Keep the photograph attached to the identity record without using the socket silhouette to fill the missing configuration.<\/p>\n<figure id=\"fig-original\" class=\"product-original\"><a href=\"https:\/\/www.wehopower.com\/it\/product\/300w-12v-24v-48v-dc-ac-110v-220v-pure-sine-wave-power-inverter\/\"><img decoding=\"async\" src=\"https:\/\/www.wehopower.com\/wp-content\/uploads\/2026\/11\/original.jpg\" alt=\"Inverter Output Frequency: Confirm 50 Hz or 60 Hz Before Ordering  title=\" loading=\"lazy\" inverter output frequency: confirm 50 hz or 60 before ordering title=\"\"><\/a><figcaption>Official WHP-300 family product photograph. The pictured markings are retained; the image does not identify every available input or AC output option.<\/figcaption><a class=\"original-link\" href=\"https:\/\/www.wehopower.com\/wp-content\/uploads\/2026\/11\/original.jpg\">View original image<\/a><\/figure>\n<p>Ask for a unit-level configuration statement covering nominal frequency, tolerance, output voltage, permitted adjustment and the matching instructions. If frequency is configurable, define who may change it and how the released setting is retained.<\/p>\n<\/section>\n<section id=\"frequency-matrix\">\n<h2><span class=\"ez-toc-section\" id=\"Build_a_receiver-by-receiver_frequency_matrix\"><\/span>Build a receiver-by-receiver frequency matrix<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<div class=\"table-scroll\">\n<table>\n<thead>\n<tr>\n<th scope=\"col\">Receiver evidence<\/th>\n<th scope=\"col\">Frequency entry<\/th>\n<th scope=\"col\">Procurement action<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Nameplate permits 50\/60 Hz<\/td>\n<td>Either, subject to the full input specification<\/td>\n<td>Choose one output option and verify all other receivers.<\/td>\n<\/tr>\n<tr>\n<td>Nameplate permits 50 Hz only<\/td>\n<td>50 Hz required<\/td>\n<td>Do not release a 60 Hz option by analogy.<\/td>\n<\/tr>\n<tr>\n<td>Frequency absent or unclear<\/td>\n<td>Unresolved<\/td>\n<td>Obtain the manufacturer\u2019s applicable input requirement.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>Include accessories that operators may add later. A service outlet whose allowed receiver is unrestricted creates a different control problem from a dedicated connector for one approved appliance. State the permitted equipment list in the machine documentation so a later service change does not undo the frequency decision.<\/p>\n<figure id=\"fig-diagram\" class=\"diagram\"><img decoding=\"async\" class=\"technical-desktop\" src=\"https:\/\/www.wehopower.com\/wp-content\/uploads\/2026\/11\/diagram-7.svg\" alt=\"Inverter Output Frequency: Confirm 50 Hz or 60 Hz Before Ordering  title=\" loading=\"lazy\" inverter output frequency: confirm 50 hz or 60 before ordering title=\"\"><img decoding=\"async\" class=\"technical-mobile\" src=\"https:\/\/www.wehopower.com\/wp-content\/uploads\/2026\/11\/diagram-mobile-7.svg\" alt=\"Inverter Output Frequency: Confirm 50 Hz or 60 Hz Before Ordering  title=\" loading=\"lazy\" inverter output frequency: confirm 50 hz or 60 before ordering title=\"\"><figcaption>Frequency decision sequence; it does not represent a measured inverter output.<\/figcaption><a class=\"original-link\" href=\"https:\/\/www.wehopower.com\/wp-content\/uploads\/2026\/11\/diagram-7.svg\">Open full-size technical illustration<\/a><\/figure>\n<\/section>\n<section id=\"period-example\">\n<h2><span class=\"ez-toc-section\" id=\"Use_period_as_a_cross-check_not_as_a_substitute_for_a_test_plan\"><\/span>Use period as a cross-check, not as a substitute for a test plan<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>For a periodic waveform, frequency is the reciprocal of period. In a hypothetical measurement, a 20.0 ms period corresponds to 50 Hz, while 16.67 ms corresponds to approximately 60 Hz. These are arithmetic examples, not measurements of this inverter.<\/p>\n<p>Check how the instrument detects frequency on the actual waveform. Noise, a distorted zero crossing or an unsuitable trigger can produce a plausible but incorrect reading. Retain the instrument identification, measurement method, output state and load with the result. Avoid judging a complete tolerance from a rounded display alone.<\/p>\n<p>A qualified test team should choose suitably rated equipment and the connection method. Record steady operation and any documented operating states relevant to the receiver. Do not infer a frequency-versus-load performance curve from a single unloaded reading.<\/p>\n<\/section>\n<section id=\"release-frequency\">\n<h2><span class=\"ez-toc-section\" id=\"Release_a_configuration_and_a_result_together\"><\/span>Release a configuration and a result together<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The release record should connect three items: what each receiver requires, what inverter option was ordered, and what the supplied assembly actually produced under the agreed test. If one item is missing, a matching plug and a working power indicator cannot close the gap.<\/p>\n<p>When a discrepancy appears, preserve the original label and observation. Check the order code and applicable instructions before changing a setting or substituting hardware. Increasing available watts does not correct a frequency mismatch.<\/p>\n<p>Use the worksheet to retain the required frequency, source document, ordered option, measured result, instrument uncertainty and release decision. Reopen the record after an inverter substitution, control-setting change or addition of an AC receiver.<\/p>\n<\/section>\n<section class=\"cta\">\n<h2><span class=\"ez-toc-section\" id=\"Specify_the_required_AC_configuration\"><\/span>Specify the required AC configuration<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Send WEHO the receiver frequency requirements, AC voltage, permitted load list, battery configuration and required configuration control. Request the matching WHP300W option and its unit-level output information before ordering.<\/p>\n<p><a href=\"https:\/\/www.wehopower.com\/it\/contact\/\">Discuss the inverter frequency specification<\/a><\/p>\n<\/section>\n<section id=\"worksheet\" class=\"sheet\">\n<h2><span class=\"ez-toc-section\" id=\"AC_output_frequency_acceptance_record\"><\/span>AC output frequency acceptance record<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<div class=\"sheet-row\"><label>Equipment revision<input aria-label=\"Equipment revision\"><\/label><label>Inverter order configuration<input aria-label=\"Inverter order configuration\"><\/label><label>Output voltage \/ load state<input aria-label=\"Output voltage \/ load state\"><\/label><label>Instrument \/ method<input aria-label=\"Instrument \/ method\"><\/label><label>Reviewer \/ date<input aria-label=\"Reviewer \/ date\"><\/label><\/div>\n<div class=\"table-scroll\">\n<table>\n<thead>\n<tr>\n<th scope=\"col\">Receiver \/ document<\/th>\n<th scope=\"col\">Required frequency<\/th>\n<th scope=\"col\">Ordered option<\/th>\n<th scope=\"col\">Measured result \/ uncertainty<\/th>\n<th scope=\"col\">Decision<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td contenteditable=\"true\" aria-label=\"Worksheet cell\"><\/td>\n<td contenteditable=\"true\" aria-label=\"Worksheet cell\"><\/td>\n<td contenteditable=\"true\" aria-label=\"Worksheet cell\"><\/td>\n<td contenteditable=\"true\" aria-label=\"Worksheet cell\"><\/td>\n<td contenteditable=\"true\" aria-label=\"Worksheet cell\"><\/td>\n<\/tr>\n<tr>\n<td contenteditable=\"true\" aria-label=\"Worksheet cell\"><\/td>\n<td contenteditable=\"true\" aria-label=\"Worksheet cell\"><\/td>\n<td contenteditable=\"true\" aria-label=\"Worksheet cell\"><\/td>\n<td contenteditable=\"true\" aria-label=\"Worksheet cell\"><\/td>\n<td contenteditable=\"true\" aria-label=\"Worksheet cell\"><\/td>\n<\/tr>\n<tr>\n<td contenteditable=\"true\" aria-label=\"Worksheet cell\"><\/td>\n<td contenteditable=\"true\" aria-label=\"Worksheet cell\"><\/td>\n<td contenteditable=\"true\" aria-label=\"Worksheet cell\"><\/td>\n<td contenteditable=\"true\" aria-label=\"Worksheet cell\"><\/td>\n<td contenteditable=\"true\" aria-label=\"Worksheet cell\"><\/td>\n<\/tr>\n<tr>\n<td contenteditable=\"true\" aria-label=\"Worksheet cell\"><\/td>\n<td contenteditable=\"true\" aria-label=\"Worksheet cell\"><\/td>\n<td contenteditable=\"true\" aria-label=\"Worksheet cell\"><\/td>\n<td contenteditable=\"true\" aria-label=\"Worksheet cell\"><\/td>\n<td contenteditable=\"true\" aria-label=\"Worksheet cell\"><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>Blank project worksheet. Enter verified project data; example calculations above are not measurements.<\/p>\n<\/section>\n<section class=\"source-list\">\n<h2><span class=\"ez-toc-section\" id=\"Sources_and_further_reading\"><\/span>Sources and further reading<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ol>\n<li><a href=\"https:\/\/www.wehopower.com\/it\/product\/300w-12v-24v-48v-dc-ac-110v-220v-pure-sine-wave-power-inverter\/\">WEHO WHP-300 family product information<\/a><\/li>\n<\/ol>\n<\/section>","protected":false},"excerpt":{"rendered":"<p>Specify inverter frequency from the actual load requirements. Build a 50\/60 Hz acceptance record using the WEHO WHP300W family as a product reference.<\/p>","protected":false},"author":2,"featured_media":20713,"parent":0,"menu_order":38,"comment_status":"","ping_status":"","template":"","format":"standard","meta":{"_acf_changed":false,"_joinchat":[],"footnotes":""},"news_category":[284],"class_list":["post-20732","news","type-news","status-publish","format-standard","has-post-thumbnail","hentry","news_category-product-articles","entry"],"acf":[],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/www.wehopower.com\/it\/wp-json\/wp\/v2\/news\/20732","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wehopower.com\/it\/wp-json\/wp\/v2\/news"}],"about":[{"href":"https:\/\/www.wehopower.com\/it\/wp-json\/wp\/v2\/types\/news"}],"author":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/it\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/it\/wp-json\/wp\/v2\/comments?post=20732"}],"version-history":[{"count":0,"href":"https:\/\/www.wehopower.com\/it\/wp-json\/wp\/v2\/news\/20732\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/it\/wp-json\/wp\/v2\/media\/20713"}],"wp:attachment":[{"href":"https:\/\/www.wehopower.com\/it\/wp-json\/wp\/v2\/media?parent=20732"}],"wp:term":[{"taxonomy":"news_category","embeddable":true,"href":"https:\/\/www.wehopower.com\/it\/wp-json\/wp\/v2\/news_category?post=20732"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}