{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1340-1AA32-0DC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1340-1AA32-0DC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1340-1AA32-0DC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1340-1AA32-0DC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1340-1AA32-0DC0, IEC frame 400 3-pole switch disconnector, 400 A rated, no overload/short-circuit protection, includes nut keeper kit and undervoltage release 208-230 V AC.","salesMarkdown":"It provides visible-break isolation for a downstream load but carries no overload or short-circuit protection — that is a separate device (a fuse or MCCB) upstream. The 400 A continuous rating is the full-load current the main contacts can carry without exceeding temperature rise limits. Because this is a switch disconnector — not a circuit breaker — the 400 A figure governs the conductor and busbar sizing, not the fault-clearing capability. The undervoltage release (208-230 V AC) drops the switch open if control power is lost, which is common in safety interlock or emergency-stop chains where you want the load isolated on a power failure. The two auxiliary changeover switches give dry-contact status: one can signal the closed position, the other the open/tripped state, so a controller knows the disconnector position without relying on a voltage presence check. This is a panel-mount device on the SENTRON 3VA1 frame. It takes a DIN-rail or screw-mount footprint common to IEC switchgear. The nut keeper kit simplifies busbar connection — the nuts stay captive during assembly, which saves time on a multi-pole run. The undervoltage release and aux switches are factory-fitted, so no field wiring of separate accessory blocks is needed. Wire the control supply to the UVR terminals and the aux contacts back to the PLC input card.","metaTitle":"Siemens 3VA1340-1AA32-0DC0 SENTRON Switch Disconnector, 400A","metaDescription":"Siemens SENTRON 3VA1340-1AA32-0DC0 IEC frame 400 3-pole switch disconnector, 400A rated. Current lifecycle stage. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"title":"3VA1340-1AA32-0DC0","description":"switch disconnector 3VA1 IEC frame 400 3-pole SD100, In=400A without overload protection w/o short-circuit protection nut keeper kit switch disconnector 3VA1 IEC frame 400 3-pole SD100, In=400A without overload protection w/o short-circuit protection nut keeper kit UNDERVOLTAGE RELEASE 208-230 V AC 50/60 HZ ACCESSORY FOR 3VA1 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=1419582&mlfb=3VA1340-1AA32-0DC0"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1340-1AA32-0DC0","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/3VA1340-1AA32-0DC0 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}}