{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1225-1AA42-0KB0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1225-1AA42-0KB0","canonicalUrl":"https://aoctrl.com/siemens/3VA1225-1AA42-0KB0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1225-1AA42-0KB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA1 series, switch disconnector, IEC frame 250, 4-pole SD100, In=250A, without overload or short-circuit protection, with shunt trip left and 2 auxiliary switch changeover contacts.","salesMarkdown":"The Siemens 3VA1225-1AA42-0KB0 is a 4-pole switch disconnector from the 3VA1 series, rated at 250 A continuous current on an IEC frame 250. The 250 A continuous rating (In) governs the main circuit capacity — sized for a 250 A feeder or downstream distribution, not for motor starting duty where overload protection is required separately. The shunt trip release operates on either 208-277 V AC or 220-250 V DC, so it can be wired into a remote trip circuit from a safety relay or emergency-stop chain without an intermediate relay. ## Deployment Context The 4-pole configuration suits three-phase plus neutral disconnection, common in distribution panels for machine tools or process lines where a visible-break disconnect is required for lockout/tagout.","metaTitle":"Siemens 3VA1225-1AA42-0KB0 Switch Disconnector, 250A 4-Pole,","metaDescription":"Siemens 3VA1225-1AA42-0KB0 switch disconnector, 250A rated current, 4-pole, with shunt trip and auxiliary switch. Current production lifecycle. 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":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1478071&mlfb=3VA1225-1AA42-0KB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1225-1AA42-0KB0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1225-1AA42-0KB0 and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing — no stock or price figures are listed here."},{"question":"What is the shunt trip voltage rating on this switch disconnector?","answer":"The shunt trip release is rated for 208-277 V AC 50/60 Hz or 220-250 V DC, giving flexibility for either AC or DC control circuits."},{"question":"Does this switch disconnector include overload or short-circuit protection?","answer":"No, it is specified without overload protection and without short-circuit protection — it is a disconnect switch only, intended for isolation and switching under load, not for fault interruption."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1225-1AA42-0KB0","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/3VA1225-1AA42-0KB0 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}}