{"id":3945,"date":"2026-02-12T13:55:22","date_gmt":"2026-02-12T05:55:22","guid":{"rendered":"https:\/\/www.sf6free-switchgear.com\/?post_type=product&p=3945"},"modified":"2026-03-09T14:02:01","modified_gmt":"2026-03-09T06:02:01","slug":"40-5kv-sf6-gas-insulated-ring-main-unit-rmu","status":"publish","type":"product","link":"https:\/\/www.sf6free-switchgear.com\/index.php\/product\/40-5kv-sf6-gas-insulated-ring-main-unit-rmu\/","title":{"rendered":"40.5kV SF6 Gas-Insulated Ring Main Unit (RMU)"},"content":{"rendered":"

The core unit of this product includes a straight-acting load switch and vacuum circuit breaker. All primary live parts are sealed in a stainless steel gas tank filled with SF6, isolated from the outside and unaffected by environmental factors. The gas tank is installed on the base of the cable compartment made of aluminum-zinc plate, with the operating mechanism interlocked with the door panel. Metal materials account for over 90%, improving power supply reliability and personal safety, and complying with relevant international standards.<\/p>\n","protected":false},"excerpt":{"rendered":"

Fully sealed SF6 gas insulation, maintenance-free for primary live equipment throughout its lifecycle;
\nCompact structure (500mm width), saving floor space;
\nResistant to internal arc faults, mechanical interlocking ensures operational safety;
\nSuitable for polluted environments such as salt mist and humidity;
\nModular design supporting flexible combination.<\/p>\n","protected":false},"featured_media":3975,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[49],"product_tag":[],"class_list":{"0":"post-3945","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-sf6-switchgear","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"acf":[],"yoast_head":"\n40.5kV SF6 Gas-Insulated Ring Main Unit (RMU) - Putai High Voltage Electric<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"40.5kV SF6 Gas-Insulated Ring Main Unit (RMU) - Putai High Voltage Electric\" \/>\n<meta property=\"og:description\" content=\"Fully sealed SF6 gas insulation, maintenance-free for primary live equipment throughout its lifecycle; Compact structure (500mm width), saving floor space; Resistant to internal arc faults, mechanical interlocking ensures operational safety; Suitable for polluted environments such as salt mist and humidity; Modular design supporting flexible combination.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.sf6free-switchgear.com\/index.php\/product\/40-5kv-sf6-gas-insulated-ring-main-unit-rmu\/\" \/>\n<meta property=\"og:site_name\" content=\"Putai High Voltage Electric\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-09T06:02:01+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.sf6free-switchgear.com\/wp-content\/uploads\/2026\/02\/40.5kV-SF6-Gas-Insulated-RMU1_WH_600x600px.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"600\" \/>\n\t<meta property=\"og:image:height\" content=\"600\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.sf6free-switchgear.com\/index.php\/product\/40-5kv-sf6-gas-insulated-ring-main-unit-rmu\/\",\"url\":\"https:\/\/www.sf6free-switchgear.com\/index.php\/product\/40-5kv-sf6-gas-insulated-ring-main-unit-rmu\/\",\"name\":\"40.5kV SF6 Gas-Insulated Ring Main Unit (RMU) - Putai High Voltage Electric\",\"isPartOf\":{\"@id\":\"https:\/\/www.sf6free-switchgear.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.sf6free-switchgear.com\/index.php\/product\/40-5kv-sf6-gas-insulated-ring-main-unit-rmu\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.sf6free-switchgear.com\/index.php\/product\/40-5kv-sf6-gas-insulated-ring-main-unit-rmu\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.sf6free-switchgear.com\/wp-content\/uploads\/2026\/02\/40.5kV-SF6-Gas-Insulated-RMU1_WH_600x600px.jpg\",\"datePublished\":\"2026-02-12T05:55:22+00:00\",\"dateModified\":\"2026-03-09T06:02:01+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/www.sf6free-switchgear.com\/index.php\/product\/40-5kv-sf6-gas-insulated-ring-main-unit-rmu\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.sf6free-switchgear.com\/index.php\/product\/40-5kv-sf6-gas-insulated-ring-main-unit-rmu\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.sf6free-switchgear.com\/index.php\/product\/40-5kv-sf6-gas-insulated-ring-main-unit-rmu\/#primaryimage\",\"url\":\"https:\/\/www.sf6free-switchgear.com\/wp-content\/uploads\/2026\/02\/40.5kV-SF6-Gas-Insulated-RMU1_WH_600x600px.jpg\",\"contentUrl\":\"https:\/\/www.sf6free-switchgear.com\/wp-content\/uploads\/2026\/02\/40.5kV-SF6-Gas-Insulated-RMU1_WH_600x600px.jpg\",\"width\":600,\"height\":600,\"caption\":\"40.5kV SF6 Gas-Insulated RMU(1)\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.sf6free-switchgear.com\/index.php\/product\/40-5kv-sf6-gas-insulated-ring-main-unit-rmu\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.sf6free-switchgear.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Shop\",\"item\":\"https:\/\/www.sf6free-switchgear.com\/index.php\/shop\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"40.5kV SF6 Gas-Insulated Ring Main Unit (RMU)\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.sf6free-switchgear.com\/#website\",\"url\":\"https:\/\/www.sf6free-switchgear.com\/\",\"name\":\"Putai High Voltage Electric\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.sf6free-switchgear.com\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"40.5kV SF6 Gas-Insulated Ring Main Unit (RMU) - Putai High Voltage Electric","robots":{"index":"noindex","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"og_locale":"en_US","og_type":"article","og_title":"40.5kV SF6 Gas-Insulated Ring Main Unit (RMU) - Putai High Voltage Electric","og_description":"Fully sealed SF6 gas insulation, maintenance-free for primary live equipment throughout its lifecycle; 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