{"id":2561,"date":"2026-07-30T11:30:34","date_gmt":"2026-07-30T03:30:34","guid":{"rendered":"https:\/\/eqsvq3fzct.wpdns.site\/product\/air-circuit-breaker-wew3-4000-acb-withdrawable-type-acb-fixed-type-1000vac-1500vac-4000a-3p-acb-4p-acb\/"},"modified":"2026-10-19T09:32:21","modified_gmt":"2026-10-19T01:32:21","slug":"air-circuit-breaker-wew3-4000-acb-withdrawable-type-acb-fixed-type-1000vac-1500vac-4000a-3p-acb-4p-acb","status":"publish","type":"product","link":"https:\/\/w9-group.com\/ko\/product\/air-circuit-breaker-wew3-4000-acb-withdrawable-type-acb-fixed-type-1000vac-1500vac-4000a-3p-acb-4p-acb\/","title":{"rendered":"WEW3-4000 air circuit breaker"},"content":{"rendered":"<div class=\"ksion-pdp--w9-wew3-4000-2561\">\n<nav class=\"ksion-pdp__jump\" aria-label=\"Product page sections\">\n    <a href=\"#specifications\">Specifications<\/a><a href=\"#selection\">Selection<\/a><a href=\"#evidence\">W9 Group<\/a><a href=\"#resources\">Resources<\/a><a href=\"#faq\">FAQ<\/a><a class=\"ksion-pdp__jump-cta\" href=\"#product-enquiry\">Request a quote<\/a><br \/>\n  <\/nav>\n<section class=\"ksion-pdp__section\" id=\"specifications\">\n<div class=\"ksion-pdp__section-heading\">\n<p class=\"ksion-pdp__eyebrow\">TECHNICAL DATA<\/p>\n<h2>WEW3-4000 Air Circuit Breaker Specifications and Current Options<\/h2>\n<p>The WEW3-4000 air circuit breaker is listed by W9 Group with a 4000 A summary rating, 3P \/ 4P options and fixed or withdrawable configurations. Select the ordered current and controller, then obtain voltage-specific fault ratings and installation data for the exact capacity code.<\/p>\n<\/div>\n<div class=\"ksion-pdp__table-wrap\">\n<table class=\"ksion-pdp__spec-table\">\n<caption>WEW3-4000 product specifications<\/caption>\n<tbody>\n<tr>\n<th scope=\"row\">Model<\/th>\n<td>WEW3-4000<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Product category<\/th>\n<td>Air circuit breaker<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Summary rated current<\/th>\n<td>4000 A<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Catalog current choices<\/th>\n<td>2000, 2500, 2900, 3200, 3600, 3900, 4000 A<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Pole options<\/th>\n<td>3P \/ 4P<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Summary working voltage<\/th>\n<td>400 \/ 690 V AC; confirm exact application rating<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Construction options<\/th>\n<td>Fixed \/ withdrawable; confirm supplied base and interlocks<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Controller and releases<\/th>\n<td>Confirm protection functions, control supplies and accessory schedule<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Fault duty<\/th>\n<td>Request matched Icu, Ics and Icw with test voltage and duration<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n<section class=\"ksion-pdp__section ksion-pdp__section--tint\" id=\"selection\">\n<div class=\"ksion-pdp__section-heading\">\n<p class=\"ksion-pdp__eyebrow\">SELECTION GUIDE<\/p>\n<h2>Selecting a 4000A Fixed or Withdrawable Air Circuit Breaker<\/h2>\n<p>Specify the ordered current, poles, construction, system voltage, fault level, controller and control-supply requirements when requesting a WEW3-4000 quotation from W9 Group.<\/p>\n<\/div>\n<div class=\"ksion-pdp__selection-grid\">\n<article class=\"ksion-pdp__selection-card\"><span class=\"ksion-pdp__card-index\">01<\/span><\/p>\n<h3>Define the current and frame<\/h3>\n<p>State WEW3-4000, the ordered current and continuous load. Confirm the selected controller and any derating conditions.<\/p>\n<\/article>\n<article class=\"ksion-pdp__selection-card\"><span class=\"ksion-pdp__card-index\">02<\/span><\/p>\n<h3>Match the application voltage<\/h3>\n<p>Provide system voltage and prospective fault current. Request a matched rating table rather than relying on a generic solar application title.<\/p>\n<\/article>\n<article class=\"ksion-pdp__selection-card\"><span class=\"ksion-pdp__card-index\">03<\/span><\/p>\n<h3>Choose fixed or withdrawable<\/h3>\n<p>Confirm the construction, base, interlocks, terminal arrangement and maintenance access on the installation drawing.<\/p>\n<\/article>\n<article class=\"ksion-pdp__selection-card\"><span class=\"ksion-pdp__card-index\">04<\/span><\/p>\n<h3>Specify the control package<\/h3>\n<p>List required trip functions, operating supply, auxiliary feedback and communication needs. Confirm each item in the supplied bill of materials.<\/p>\n<\/article>\n<\/div>\n<div class=\"ksion-pdp__application-note\"><strong>Before specifying WEW3-4000:<\/strong> Confirm the complete model, voltage, controller and fault-duty documentation. Series solar wording does not establish extended-voltage or outdoor suitability for the supplied breaker.<\/div>\n<\/section>\n<section class=\"ksion-pdp__section\" id=\"evidence\">\n<div class=\"ksion-pdp__evidence-grid\">\n<div class=\"ksion-pdp__evidence-copy\">\n<div class=\"ksion-pdp__section-heading\">\n<p class=\"ksion-pdp__eyebrow\">ABOUT W9 GROUP<\/p>\n<h2>W9 Group 4000A Air Circuit Breaker Supply and Support<\/h2>\n<\/p><\/div>\n<p>Zhejiang W9 Group Technology Co., Ltd. supplies low-voltage electrical products. For a WEW3-4000 enquiry, contact W9 Group about configuration and matching product documents.<\/p>\n<div class=\"ksion-pdp__evidence-links\">\n          <a href=\"https:\/\/w9-group.com\/about-us\/\"><span>01<\/span><strong>About W9 Group<\/strong><em>Company profile and low-voltage product range<\/em><\/a><br \/>\n          <a href=\"https:\/\/w9-group.com\/oem-odm\/\"><span>02<\/span><strong>W9 Group OEM \/ ODM<\/strong><em>Ask about branding and configuration for your WEW3-4000 order<\/em><\/a><br \/>\n          <a href=\"https:\/\/w9-group.com\/technical-support\/\"><span>03<\/span><strong>Technical support<\/strong><em>Request model-specific selection and installation documents<\/em><\/a>\n        <\/div>\n<\/p><\/div>\n<figure class=\"ksion-pdp__evidence-media\">\n        <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/w9-group.com\/wp-content\/uploads\/2026\/07\/oem-circuit-protection-devices.webp\" alt=\"W9 Group OEM and ODM circuit protection product scope\" width=\"1000\" height=\"669\"><figcaption>W9 Group circuit-protection range \u2014 category illustration.<\/figcaption><\/figure>\n<\/p><\/div>\n<\/section>\n<section class=\"ksion-pdp__section ksion-pdp__section--tint\" id=\"resources\">\n<div class=\"ksion-pdp__section-heading\">\n<p class=\"ksion-pdp__eyebrow\">RELATED RESOURCES<\/p>\n<h2>WEW3-4000 ACB Fault Ratings and Installation Document Requests<\/h2>\n<p>Use technical support and related products to specify WEW3-4000. Request a datasheet and wiring diagram matching the selected WEW3-4000 configuration.<\/p>\n<\/div>\n<div class=\"ksion-pdp__resource-list\">\n      <a href=\"https:\/\/w9-group.com\/technical-support\/\"><span>TECHNICAL SUPPORT<\/span><strong>Selection and product documentation<\/strong><em>Request the datasheet and wiring drawing for the offered configuration<\/em><\/a><br \/>\n      <a href=\"https:\/\/w9-group.com\/product\/air-circuit-breaker-wew3-7500-acb-withdrawable-type-acb-fixed-type-1000vac-1500vac-4000a-3p-acb-4p-acb\/\"><span>RELATED PRODUCT<\/span><strong>WEW3-7500<\/strong><em>Compare function and configuration; request separate model ratings<\/em><\/a><br \/>\n      <a href=\"https:\/\/w9-group.com\/download\/\"><span>DOCUMENTS<\/span><strong>W9 Group download centre<\/strong><em>Request the current document for your quoted WEW3-4000 variant<\/em><\/a>\n    <\/div>\n<\/section>\n<section class=\"ksion-pdp__section\" id=\"faq\">\n<div class=\"ksion-pdp__section-heading\">\n<p class=\"ksion-pdp__eyebrow\">BUYER FAQ<\/p>\n<h2>WEW3-4000 Air Circuit Breaker FAQs: Voltage and Controller Selection<\/h2>\n<p>Find answers about WEW3-4000 selection, configuration and ordering.<\/p>\n<\/div>\n<div class=\"ksion-pdp__faq-list\">\n<details class=\"ksion-pdp__faq-item\">\n<summary class=\"ksion-pdp__faq-question\">Which current choices are listed for WEW3-4000?<\/summary>\n<p class=\"ksion-pdp__faq-answer\">The target table lists 2000, 2500, 2900, 3200, 3600, 3900, 4000 A. Confirm the ordered current, controller range and any enclosure or temperature derating.<\/p>\n<\/details>\n<details class=\"ksion-pdp__faq-item\">\n<summary class=\"ksion-pdp__faq-question\">Does the listing establish every voltage mentioned in the old title?<\/summary>\n<p class=\"ksion-pdp__faq-answer\">Use a matched rating document for the offered device. The summary, title and some table entries differ; no extended-voltage suitability is promised from the title alone.<\/p>\n<\/details>\n<details class=\"ksion-pdp__faq-item\">\n<summary class=\"ksion-pdp__faq-question\">How do fixed and withdrawable versions differ for ordering?<\/summary>\n<p class=\"ksion-pdp__faq-answer\">State the required construction and confirm the supplied base, position indication, interlocks, terminals and installation dimensions for that version.<\/p>\n<\/details>\n<details class=\"ksion-pdp__faq-item\">\n<summary class=\"ksion-pdp__faq-question\">Are Icu, Ics and Icw interchangeable ratings?<\/summary>\n<p class=\"ksion-pdp__faq-answer\">Request all required ratings separately at the project voltage. Confirm the short-time withstand duration and the controller settings used in the coordination study.<\/p>\n<\/details>\n<details class=\"ksion-pdp__faq-item\">\n<summary class=\"ksion-pdp__faq-question\">Does every controller include ground-fault protection or communication?<\/summary>\n<p class=\"ksion-pdp__faq-answer\">A series configuration list does not establish every controller function. Confirm the exact controller code, sensing arrangement, protection functions and communication interface.<\/p>\n<\/details>\n<details class=\"ksion-pdp__faq-item\">\n<summary class=\"ksion-pdp__faq-question\">Can the breaker be installed outdoors without an enclosure?<\/summary>\n<p class=\"ksion-pdp__faq-answer\">The available listing does not establish a complete outdoor enclosure specification. Confirm the switchboard protection, environmental conditions and installation requirements; generic waterproof wording is not a device rating.<\/p>\n<\/details>\n<details class=\"ksion-pdp__faq-item\">\n<summary class=\"ksion-pdp__faq-question\">What is needed for a WEW3-4000 quotation?<\/summary>\n<p class=\"ksion-pdp__faq-answer\">Send the required configuration, quantity, destination market and document requirements. Ask W9 Group to confirm price, minimum order quantity, samples and lead time for the selected configuration.<\/p>\n<\/details>\n<\/div>\n<\/section>\n<section class=\"ksion-pdp__section\" id=\"product-enquiry\">\n<div class=\"ksion-pdp__enquiry\">\n<div class=\"ksion-pdp__enquiry-copy\">\n<p class=\"ksion-pdp__eyebrow\">PRODUCT ENQUIRY<\/p>\n<h2>Request a WEW3-4000 Air Circuit Breaker Quotation<\/h2>\n<p>Tell W9 Group your ordered current, poles, construction, system voltage, fault level, controller and control-supply requirements, quantity and destination market so the selected configuration can be identified.<\/p>\n<\/div>\n<p><a class=\"ksion-pdp__button ksion-pdp__button--primary\" href=\"https:\/\/w9-group.com\/contact-us\/\">Contact W9 Group<\/a><\/div>\n<\/section>\n<\/div>\n<style 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