{"product_id":"siemens-3va6340-6jq31-0aa0-400a-3p-600v-circuit-breaker","title":"Siemens 3VA6340-6JQ31-0AA0 Circuit Breaker, 400A, 3-Pole, 600V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens \u003cstrong\u003e3VA6340-6JQ31-0AA0\u003c\/strong\u003e circuit breaker—the dependable, industrial-grade overcurrent protection device designed for demanding service, maintenance, and replacement projects. This unit is built to safeguard three-phase power systems with a robust 400 A rating, three poles, and a 600 V capacity, making it a trusted choice for reliable electrical protection in commercial and industrial environments.\u003c\/p\u003e \u003cp\u003eKey features at a glance\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer\u003c\/strong\u003e: Siemens\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e: 3VA6340-6JQ31-0AA0\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: Circuit Breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage\u003c\/strong\u003e: 400 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles\u003c\/strong\u003e: 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage\u003c\/strong\u003e: 600 V\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy this specific breaker matters for your project\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePrecise compatibility\u003c\/strong\u003e: The exact part number ensures a clean fit into Siemens-compatible panels and switchgear, minimizing the risk of mismatches during replacements or upgrades. Always verify fit by part number and application requirements to ensure seamless operation.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree‑phase protection\u003c\/strong\u003e: A 3-pole design provides coordinated interruption for 3-phase systems, helping protect motors, feeders, and downstream equipment from overloads and short circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHigh-current readiness\u003c\/strong\u003e: With a 400 A rating, it’s suited for demanding industrial loads, ensuring dependable protection for heavy machinery, manufacturing lines, and critical power distribution points.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e600 V capability\u003c\/strong\u003e: Designed to handle typical industrial distribution networks, delivering reliable performance in environments requiring robust voltage protection.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIdeal use cases\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eUpgrading or replacing protection in existing industrial switchgear and panel boards\u003c\/li\u003e \u003cli\u003eMaintenance projects for manufacturing lines, conveyors, and processing equipment\u003c\/li\u003e \u003cli\u003eNew installations where Siemens-compatible breakers are specified for reliability and standardization\u003c\/li\u003e \u003cli\u003eService upgrades in facilities that require high-current, three-phase protection with well-defined part matching\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhat sets this Siemens breaker apart from alternatives\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eExact part-number fidelity reduces installation risk and accelerates procurement, so you can minimize downtime during maintenance or upgrades.\u003c\/li\u003e \u003cli\u003eThree-pole, 400 A design is tailored for medium- to high-load three-phase systems, offering strong protection without overcomplicating the panel layout.\u003c\/li\u003e \u003cli\u003eBuilt to align with Siemens ecosystem and documentation, supporting straightforward service, testing, and replacement workflows.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003ePro tips for when you’re planning your install\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eHave the exact part number handy when ordering to ensure a proper fit in your enclosure and to match the existing protection scheme.\u003c\/li\u003e \u003cli\u003ePrepare accompanying documentation that references the 3VA6340-6JQ31-0AA0 part number for fast approvals and audits.\u003c\/li\u003e \u003cli\u003eUse in environments within its 600 V rating and ensure the surrounding switchgear is compatible with three-phase protection and the current rating.\u003c\/li\u003e \u003cli\u003eIf you’re unsure about compatibility, send us the part number and your application details and we’ll help confirm fit and recommended usage.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eNotes\u003c\/p\u003e\n\u003cp\u003eVerify fit by part number and application requirements. Need help matching a part number or confirming compatibility? Message us and we’ll help.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46416091644066,"sku":"3VA6340-6JQ31-0AA0","price":16914.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-3va6340-6jq31-0aa0-circuit-breaker-400a-3-pole-600v-breakers-221.webp?v=1789235168","url":"https:\/\/www.ampstate.com\/products\/siemens-3va6340-6jq31-0aa0-400a-3p-600v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}