{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1340-1AA32-0AH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1340-1AA32-0AH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1340-1AA32-0AH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1340-1AA32-0AH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA1 series, switch disconnector, IEC frame 400, 3-pole SD100, In=400A, without overload or short-circuit protection, nut keeper kit, 2 auxiliary switch changeover H, 1 trip alarm switch changeover.","salesMarkdown":"The Siemens 3VA1340-1AA32-0AH0 is a 3-pole switch disconnector from the 3VA1 series, rated at 400 A continuous current on an IEC frame 400. It is a SD100 variant — a disconnect switch without integral overload or short-circuit protection, intended for isolation and switching duty where the upstream protection device handles fault clearing. The 400 A rating (In) is the continuous current the switch can carry without exceeding its temperature rise limits. Because this is a switch disconnector without overload protection, it must be paired with an upstream circuit breaker or fuse sized to protect the downstream cable and load. The two auxiliary changeover contacts (type H) and one trip alarm switch changeover provide remote status feedback. The auxiliary contacts follow the main contact position; the trip alarm signals when the switch has been operated by a shunt trip or undervoltage release (if fitted). These are wired separately from the main power path, typically to a PLC or indicator panel. ## Deployment Context This switch disconnector is designed for panel-mount or DIN-rail installation in industrial control cabinets, serving as a manual disconnect for motor feeder circuits, distribution sub-feeds, or machinery isolation points. The nut keeper kit simplifies bus-bar connection during panel assembly — the captive nuts stay aligned with the bus-bar holes, reducing installation time on multi-pole builds.","metaTitle":"Siemens 3VA1340-1AA32-0AH0 Switch Disconnector, 400A, 3-Pole","metaDescription":"Siemens 3VA1340-1AA32-0AH0 switch disconnector, 400A rated, 3-pole, IEC frame 400, SD100. Current lifecycle stage. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/f59d8c360c846d5ff9ef773daebb7908.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1438669&mlfb=3VA1340-1AA32-0AH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1340-1AA32-0AH0/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to 3VA1340-1AA32-0AH0 in this component family?","answer":"Within the 3VA1 family, the closest alternative would be a variant with the same frame size and pole count but different auxiliary contact configuration or trip alarm options. The evidence does not list a specific pin-compatible substitute; verify auxiliary wiring and trip alarm requirements before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1340-1AA32-0AH0","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3VA1340-1AA32-0AH0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}