{"id":2690,"date":"2026-03-25T07:20:41","date_gmt":"2026-03-25T07:20:41","guid":{"rendered":"https:\/\/niunielec.com\/?post_type=product&#038;p=2690"},"modified":"2026-03-31T07:42:00","modified_gmt":"2026-03-31T07:42:00","slug":"4000a-silver-plated-sulfur-treated-contact-arm-for-vacuum-circuit-breakers","status":"publish","type":"product","link":"https:\/\/niunielec.com\/pt\/product\/4000a-silver-plated-sulfur-treated-contact-arm-for-vacuum-circuit-breakers\/","title":{"rendered":"Bra\u00e7o de contacto de 4000A revestido a prata e tratado com enxofre para disjuntor de v\u00e1cuo"},"content":{"rendered":"<h2 id=\"h2-1\"><span style=\"font-size: 75%;\"><strong>Bra\u00e7o de contacto de 4000A revestido a prata e tratado com enxofre para disjuntor de v\u00e1cuo<\/strong><\/span><\/h2>\n<div>\n<p><strong>Detalhes do produto<\/strong><\/p>\n<p>Our 4000A contact arm is an ultra-high-capacity conductive component engineered for 10kV\/12kV indoor vacuum circuit breakers and medium voltage switchgear. As a professional China contact arm manufacturer, we deliver robust solutions for heavy-duty power transmission and industrial electrical projects.<\/p>\n<\/div>\n<ul>\n<li><strong>Material e tratamento de superf\u00edcies:<\/strong> Crafted from high-conductivity red copper (pure copper), with precision silver plating combined with sulfurization treatment to maximize conductivity, corrosion resistance, and service life under extreme 4000A high-current loads.<\/li>\n<li><strong>Conce\u00e7\u00e3o estrutural:<\/strong> Precision CNC machined with a multi-hole top structure for stable installation, ensuring a tight, secure fit with tulip contacts and circuit breaker mechanisms, guaranteeing consistent current flow and minimal contact resistance.<\/li>\n<li><strong>Cen\u00e1rios de aplica\u00e7\u00e3o:<\/strong> Fully compatible with 4000A rated vacuum circuit breakers and switchgear, ideal for large-scale power transmission, heavy industrial power distribution, and power station applications. Custom dimensions are available to match major global circuit breaker brands.<\/li>\n<li><strong>Qualidade e fornecimento:<\/strong> Fabricado na China, tendo sido submetido a rigorosos testes de desempenho el\u00e9trico e de durabilidade mec\u00e2nica. Oferecemos servi\u00e7os eficientes de fornecimento a granel e entrega na \u00c1sia, Europa, M\u00e9dio Oriente e outras regi\u00f5es, em conformidade com as normas internacionais IEC e GB.<\/li>\n<\/ul>\n<h3><strong><span style=\"font-size: 75%;\">4000A Silver Plated Sulfur Treated Contact Arm for Vacuum Circuit Breaker<\/span><\/strong><\/h3>\n<p><strong>Desenho<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-2699\" src=\"https:\/\/niunielec.com\/wp-content\/uploads\/2026\/03\/4000a-silver-plated-sulfur-treated-contact-arm-for-vacuum-circuit-breakers-drawing-768x469.webp\" alt=\"4000a bra\u00e7o de contacto tratado com enxofre prateado para disjuntores de v\u00e1cuo\" width=\"768\" height=\"469\" srcset=\"https:\/\/niunielec.com\/wp-content\/uploads\/2026\/03\/4000a-silver-plated-sulfur-treated-contact-arm-for-vacuum-circuit-breakers-drawing-768x469.webp 768w, https:\/\/niunielec.com\/wp-content\/uploads\/2026\/03\/4000a-silver-plated-sulfur-treated-contact-arm-for-vacuum-circuit-breakers-drawing-440x269.webp 440w, https:\/\/niunielec.com\/wp-content\/uploads\/2026\/03\/4000a-silver-plated-sulfur-treated-contact-arm-for-vacuum-circuit-breakers-drawing-18x12.webp 18w, https:\/\/niunielec.com\/wp-content\/uploads\/2026\/03\/4000a-silver-plated-sulfur-treated-contact-arm-for-vacuum-circuit-breakers-drawing-600x367.webp 600w, https:\/\/niunielec.com\/wp-content\/uploads\/2026\/03\/4000a-silver-plated-sulfur-treated-contact-arm-for-vacuum-circuit-breakers-drawing.webp 885w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/p>","protected":false},"excerpt":{"rendered":"<p>4000A silver-plated sulfur-treated contact arm for vacuum circuit breakers. As a trusted China contact arm manufacturer, we offer high-conductivity pure copper components for reliable ultra-high-current power distribution.<\/p>","protected":false},"featured_media":2697,"comment_status":"open","ping_status":"closed","template":"","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"4000A Silver Plated Sulfur Treated Contact Arm for Vacuum Circuit Breaker","_seopress_titles_desc":"4000A silver-plated sulfur-treated contact arm for vacuum circuit breaker. Pure copper, ultra-high current reliability. China contact arm manufacturer supplies custom solutions for global power distribution.","_seopress_robots_index":""},"product_brand":[],"product_cat":[24,38],"product_tag":[171,103,173],"class_list":{"0":"post-2690","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-vacuum-circuit-breaker-accessories","7":"product_cat-contact-arm","8":"product_tag-contact-arm","9":"product_tag-high-voltage","10":"product_tag-vacuum-circuit-breaker-contact-arm","12":"first","13":"instock","14":"shipping-taxable","15":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/niunielec.com\/pt\/wp-json\/wp\/v2\/product\/2690","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/niunielec.com\/pt\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/niunielec.com\/pt\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/niunielec.com\/pt\/wp-json\/wp\/v2\/comments?post=2690"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/niunielec.com\/pt\/wp-json\/wp\/v2\/media\/2697"}],"wp:attachment":[{"href":"https:\/\/niunielec.com\/pt\/wp-json\/wp\/v2\/media?parent=2690"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/niunielec.com\/pt\/wp-json\/wp\/v2\/product_brand?post=2690"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/niunielec.com\/pt\/wp-json\/wp\/v2\/product_cat?post=2690"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/niunielec.com\/pt\/wp-json\/wp\/v2\/product_tag?post=2690"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}