{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1225-1AA42-0BC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1225-1AA42-0BC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1225-1AA42-0BC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1225-1AA42-0BC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 3VA1 IEC frame 250 switch disconnector, 4-pole, 250 A continuous, busbar connection, undervoltage release 24V DC, IP40 front.","salesMarkdown":"The Siemens 3VA1225-1AA42-0BC0 is a 4-pole switch disconnector from the SENTRON 3VA1 family, rated for 250 A continuous current (Iu) in a MCCB-style frame. It provides visible-break isolation for a circuit but carries no overload or short-circuit protection — it is a disconnect-only device, not a circuit breaker. Rated insulation voltage is 800 V, and maximum operational voltage is 690 V AC (50/60 Hz) or 600 V DC. Short-circuit withstand is 3 kA at both 1 s and 0.5 s — meaning it can hold closed under a fault of that magnitude until an upstream protective device clears it. Mounts in a panel on a mounting plate — this is a bolted-frame device, not a DIN-rail snap-on. Main circuit connection is via busbar to front terminals. Auxiliary contacts are wired separately. Front face is IP40 rated — splash protection only; keep it behind a panel door in washdown zones. The UVR coil draws from the 24 V DC control supply. It has no leading contact, so the main contacts close before the UVR is fully sealed — sequence that in your safety circuit if you are using the UVR as a remote trip. An optional motor drive can be added for remote switching.","metaTitle":"Siemens 3VA1225-1AA42-0BC0 SENTRON Switch Disconnector, 250A","metaDescription":"Siemens 3VA1225-1AA42-0BC0 SENTRON switch disconnector, 250 A rated continuous current, 4-pole, no overload protection, undervoltage release 24V DC, busbar connection. Sourced to o","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":"2 auxiliary switches HQ","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":"2","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=569274&mlfb=3VA1225-1AA42-0BC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1225-1AA42-0BC0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1225-1AA42-0BC0 and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent industrial distribution. Submit a request for quote (RFQ) for current pricing and availability confirmation at time of order."},{"question":"What is the closest functional alternative to 3VA1225-1AA42-0BC0?","answer":"The 5SQ2670-2YA63 is a different class of device — a 63 A 4-pole miniature circuit breaker (MCB) per EN 60898, not a 250 A switch disconnector. It will not drop into the same panel position or carry the same load. No direct second-source exists for this rating and function in the SENTRON range."},{"question":"Will 3VA1225-1AA42-0BC0 replace a 5SQ2670-2YA63 in an existing panel?","answer":"No. The 5SQ2670-2YA63 is a 63 A 4-pole MCB (miniature circuit breaker) with overcurrent protection, rated 400 V AC, DIN-rail mount, 55 mm depth. The 3VA1225-1AA42-0BC0 is a 250 A switch disconnector with no protection, bolted mount, 70 mm depth. Different footprint, different function, different voltage class."},{"question":"What compliance documentation is available for this part?","answer":"As a current Siemens SENTRON catalog item, standard documentation includes CE declaration of conformity, RoHS and REACH compliance data, and IEC 60947-3 test reports. Specific certificates (UL, CSA, EAC) should be verified against the exact order code variant; the evidence does not list them for this specific configuration."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1225-1AA42-0BC0","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/3VA1225-1AA42-0BC0 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}}