{"id":2690,"date":"2026-03-25T07:20:41","date_gmt":"2026-03-25T07:20:41","guid":{"rendered":"https:\/\/niunielec.com\/?post_type=product&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\/ru\/%d0%bf%d1%80%d0%be%d0%b4%d1%83%d0%ba%d1%82\/4000a-silver-plated-sulfur-treated-contact-arm-for-vacuum-circuit-breakers\/","title":{"rendered":"\u041a\u043e\u043d\u0442\u0430\u043a\u0442\u043d\u044b\u0439 \u0440\u044b\u0447\u0430\u0433 4000A \u0441 \u0441\u0435\u0440\u0435\u0431\u0440\u044f\u043d\u044b\u043c \u043f\u043e\u043a\u0440\u044b\u0442\u0438\u0435\u043c, \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0430\u043d\u043d\u044b\u043c \u0441\u0435\u0440\u043e\u0439, \u0434\u043b\u044f \u0432\u0430\u043a\u0443\u0443\u043c\u043d\u043e\u0433\u043e \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e \u0432\u044b\u043a\u043b\u044e\u0447\u0430\u0442\u0435\u043b\u044f"},"content":{"rendered":"

\u041a\u043e\u043d\u0442\u0430\u043a\u0442\u043d\u044b\u0439 \u0440\u044b\u0447\u0430\u0433 4000A \u0441 \u0441\u0435\u0440\u0435\u0431\u0440\u044f\u043d\u044b\u043c \u043f\u043e\u043a\u0440\u044b\u0442\u0438\u0435\u043c, \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0430\u043d\u043d\u044b\u043c \u0441\u0435\u0440\u043e\u0439, \u0434\u043b\u044f \u0432\u0430\u043a\u0443\u0443\u043c\u043d\u043e\u0433\u043e \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e \u0432\u044b\u043a\u043b\u044e\u0447\u0430\u0442\u0435\u043b\u044f<\/strong><\/span><\/h2>\n
\n

\u0421\u0432\u0435\u0434\u0435\u043d\u0438\u044f \u043e \u0442\u043e\u0432\u0430\u0440\u0435<\/strong><\/p>\n

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

    \n
  • \u041c\u0430\u0442\u0435\u0440\u0438\u0430\u043b \u0438 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0430 \u043f\u043e\u0432\u0435\u0440\u0445\u043d\u043e\u0441\u0442\u0438:<\/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
  • \u0421\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u043d\u043e\u0435 \u043f\u0440\u043e\u0435\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435:<\/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
  • \u0421\u0446\u0435\u043d\u0430\u0440\u0438\u0438 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f:<\/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
  • \u041a\u0430\u0447\u0435\u0441\u0442\u0432\u043e \u0438 \u0441\u043d\u0430\u0431\u0436\u0435\u043d\u0438\u0435:<\/strong> \u041f\u0440\u043e\u0438\u0437\u0432\u0435\u0434\u0435\u043d\u043e \u0432 \u041a\u0438\u0442\u0430\u0435 \u0441 \u043f\u0440\u043e\u0445\u043e\u0436\u0434\u0435\u043d\u0438\u0435\u043c \u0442\u0449\u0430\u0442\u0435\u043b\u044c\u043d\u044b\u0445 \u0438\u0441\u043f\u044b\u0442\u0430\u043d\u0438\u0439 \u043d\u0430 \u044d\u043b\u0435\u043a\u0442\u0440\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a\u0438 \u0438 \u043c\u0435\u0445\u0430\u043d\u0438\u0447\u0435\u0441\u043a\u0443\u044e \u043f\u0440\u043e\u0447\u043d\u043e\u0441\u0442\u044c. \u041c\u044b \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u0435\u043c \u044d\u0444\u0444\u0435\u043a\u0442\u0438\u0432\u043d\u044b\u0435 \u0443\u0441\u043b\u0443\u0433\u0438 \u043f\u043e \u043e\u043f\u0442\u043e\u0432\u044b\u043c \u043f\u043e\u0441\u0442\u0430\u0432\u043a\u0430\u043c \u0438 \u0434\u043e\u0441\u0442\u0430\u0432\u043a\u0435 \u0432 \u0410\u0437\u0438\u044e, \u0415\u0432\u0440\u043e\u043f\u0443, \u043d\u0430 \u0411\u043b\u0438\u0436\u043d\u0438\u0439 \u0412\u043e\u0441\u0442\u043e\u043a \u0438 \u0432 \u0434\u0440\u0443\u0433\u0438\u0435 \u0440\u0435\u0433\u0438\u043e\u043d\u044b \u0432 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0438\u0438 \u0441 \u043c\u0435\u0436\u0434\u0443\u043d\u0430\u0440\u043e\u0434\u043d\u044b\u043c\u0438 \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u0430\u043c\u0438 IEC \u0438 GB.<\/li>\n<\/ul>\n

    4000A Silver Plated Sulfur Treated Contact Arm for Vacuum Circuit Breaker<\/span><\/strong><\/h3>\n

    \u0420\u0438\u0441\u043e\u0432\u0430\u043d\u0438\u0435<\/strong><\/p>\n

    \"4000a<\/p>","protected":false},"excerpt":{"rendered":"

    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\/ru\/wp-json\/wp\/v2\/product\/2690","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/niunielec.com\/ru\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/niunielec.com\/ru\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/niunielec.com\/ru\/wp-json\/wp\/v2\/comments?post=2690"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/niunielec.com\/ru\/wp-json\/wp\/v2\/media\/2697"}],"wp:attachment":[{"href":"https:\/\/niunielec.com\/ru\/wp-json\/wp\/v2\/media?parent=2690"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/niunielec.com\/ru\/wp-json\/wp\/v2\/product_brand?post=2690"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/niunielec.com\/ru\/wp-json\/wp\/v2\/product_cat?post=2690"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/niunielec.com\/ru\/wp-json\/wp\/v2\/product_tag?post=2690"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}