{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1225-1AA42-0CE0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1225-1AA42-0CE0","canonicalUrl":"https://aoctrl.com/siemens/3VA1225-1AA42-0CE0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1225-1AA42-0CE0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA1 IEC frame 250 switch disconnector, 4-pole SD100, In=250A, without overload or short-circuit protection, nut keeper kit, undervoltage release 120-127V AC 50/60Hz, 4 auxiliary switches HQ.","salesMarkdown":"## Switch Disconnector for Panel Isolation and Safety Disconnect The Siemens 3VA1225-1AA42-0CE0 is a 4-pole switch disconnector in the 3VA1 IEC frame 250, rated at In=250A. It is configured as an SD100 — a disconnect switch without overload or short-circuit protection, meaning it serves as a manual isolating device, not a protective breaker. The 250A continuous rating suits it for main panel isolation or load switching on circuits where upstream protection is already provided. This variant includes an undervoltage release (UVR) coil rated for 120-127V AC 50/60Hz. The UVR coil wiring must be connected to a separate 120-127V AC control circuit; verify the coil dropout voltage (~85% of rated) matches your control system's brownout tolerance. The four auxiliary switches are typically wired as two N.O. and two N.C. contacts (HQ configuration), but confirm the specific contact arrangement from the device label before commissioning.","metaTitle":"Siemens 3VA1225-1AA42-0CE0 Switch Disconnector, 250A, 4-Pole","metaDescription":"Siemens 3VA1225-1AA42-0CE0 switch disconnector, 4-pole, 250A, with undervoltage release 120-127V AC. Current lifecycle stage. Sourced to order.","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=649068&mlfb=3VA1225-1AA42-0CE0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1225-1AA42-0CE0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3VA1225-1AA42-0CE0 and get current pricing?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commercial response."},{"question":"What does the description 'SD100' mean on this switch disconnector?","answer":"SD100 indicates a switch disconnector without overload or short-circuit protection — it is a manual isolating device rated for 250A continuous, not a circuit breaker. Upstream overcurrent protection must be provided separately."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1225-1AA42-0CE0","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/3VA1225-1AA42-0CE0 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}}