{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1340-1AA42-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1340-1AA42-0AB0","canonicalUrl":"https://aoctrl.com/siemens/3VA1340-1AA42-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1340-1AA42-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"SENTRON, switch disconnector, 3VA1340-1AA42-0AB0, IEC frame 400, 4-pole SD100, In=400A, without overload or short-circuit protection, nut keeper kit, 2 auxiliary switch changeover H.","salesMarkdown":"The SENTRON 3VA1340-1AA42-0AB0 is a 4-pole switch disconnector on the IEC frame 400, rated at 400 A continuous. It's a straight disconnect — no overload or short-circuit protection built in, just a manual load-break switch for isolating a circuit under load or for maintenance lockout. The nut keeper kit on both sides of the main current circuit means the busbar or cable lugs get a positive mechanical clamp that won't back off under vibration; that's a detail you appreciate when you're torquing connections in a tight panel and can't get a second wrench on the back nut. No trip unit, no electronics; this is a copper-and-steel disconnect that relies on the upstream breaker or fuse for fault clearing. This is a 4-pole unit on the 3VA1 IEC frame 400, so it's sized for main incomer or large subfeed duty in a distribution board. The nut keeper kit on both sides of the main circuit connection means you can land incoming and outgoing conductors without needing to hold a nut on the blind side — a real time-saver when you're building a panel on the bench or swapping it in the field. Mounts on a standard mounting plate; no DIN-rail clip on this frame size, so plan for bolt-down with the supplied keeper hardware.","metaTitle":"SENTRON 3VA1340-1AA42-0AB0 Switch Disconnector, 400A, 4-Pole","metaDescription":"SENTRON 3VA1340-1AA42-0AB0 switch disconnector, 400A, 4-pole, IEC frame 400, SD100. Active lifecycle. Includes nut keeper kit and 2 auxiliary changeover switches. Available to orde","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"title":"3VA1340-1AA42-0AB0","description":"switch disconnector 3VA1 IEC frame 400 4-pole SD100, In=400A without overload protection w/o short-circuit protection nut keeper kit switch disconnector 3VA1 IEC frame 400 4-pole SD100, In=400A without overload protection w/o short-circuit protection nut keeper kit 2 auxiliary switch changeover H","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"Switch disconnector"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"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=1266095&mlfb=3VA1340-1AA42-0AB0"},"ai":{"faq":[{"question":"Where can I buy 3VA1340-1AA42-0AB0 and get a price?","answer":"This part is available through independent distribution and is quoted to order against an RFQ. Submit a request for current pricing and availability."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1340-1AA42-0AB0","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/3VA1340-1AA42-0AB0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}