{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1225-1AA42-0BA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1225-1AA42-0BA0","canonicalUrl":"https://aoctrl.com/siemens/3VA1225-1AA42-0BA0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1225-1AA42-0BA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1225-1AA42-0BA0, switch disconnector in MCCB design, 4-pole, In=250 A, without overload or short-circuit protection, with undervoltage release (UVR) 24 V DC, busbar connection, front terminal.","salesMarkdown":"It is not a circuit breaker — there is no overload or short-circuit trip mechanism built in. ## Undervoltage release and control wiring The UVR does not have a leading contact, so sequence timing for downstream contactors needs to be handled externally. The disconnect also accepts an optional motor drive for remote operation, though no auxiliary contacts are included on this variant. The 3VA1225-1AA42-0BA0 occupies a 140 mm wide, 158 mm tall, 70 mm deep footprint. Main circuit connections are busbar-type front terminals.","metaTitle":"Siemens 3VA1225-1AA42-0BA0 SENTRON Switch Disconnector, 250","metaDescription":"Siemens SENTRON 3VA1225-1AA42-0BA0 switch disconnector, 250 A rated continuous current, 4-pole, with undervoltage release 24 V DC. Current lifecycle stage, sourced to order. Reques","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"70 mm","Width":"140 mm","Height":"158 mm","Limited To 1 S":"3 kA","Trip indicator":"No","Number of poles":"4","Product version":"in MCCB design","Voltage trigger":"No","lifecycle_stage":"current","Limited To 0.5 S":"3 kA","Product brand name":"SENTRON","Product designation":"Switch disconnector","Latching - endurance":"15 000","Undervoltage Release":"Yes","Communication Function":"No","During Storage / Maximum":"80 °C","During Storage / Minimum":"-40 °C","Power loss [W] / maximum":"57 W","Auxiliary contact version":"Without","During Operation / Maximum":"70 °C","During Operation / Minimum":"-25 °C","Rated continuous current Iu":"250 A","Rated insulation voltage Ui":"800 V","Design of the auxiliary release":"Undervoltage release (UVR)","Protection class IP / on the front":"IP40","Reference code / acc. to DIN EN 81346-2":"Q","Max. rated operational voltage Ue with DC":"600 V","Undervoltage Release With Leading Contact":"No","Product extension / optional / motor drive":"Yes","Number of CO contacts / for auxiliary contacts":"0","Max. rated operational voltage Ue with AC 50/60Hz":"690 V","Type of electrical connection / for main current circuit":"busbar connection","Arrangement of electrical connectors / for main current circuit":"Front terminal"}},"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=569273&mlfb=3VA1225-1AA42-0BA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1225-1AA42-0BA0/alternatives.json"},"ai":{"faq":[{"question":"What is 3VA1225-1AA42-0BA0 used for?","answer":"It is a 4-pole switch disconnector rated for 250 A continuous current, used for manual load isolation and maintenance disconnect in industrial panels. It does not provide overload or short-circuit protection."},{"question":"Will 3VA1225-1AA42-0BA0 fit in a panel designed for 5SQ2670-2YA63?","answer":"No. The 5SQ2670-2YA63 is a 63 A miniature circuit breaker with a 55 mm depth and C-curve trip; the 3VA1225 is a 250 A switch disconnector with a 70 mm depth and no trip function. Different footprint, different busbar interface, different protection role."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1225-1AA42-0BA0","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/3VA1225-1AA42-0BA0 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}}