{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-5EF32-0DC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-5EF32-0DC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-5EF32-0DC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-5EF32-0DC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA1 IEC frame 160 circuit breaker, breaking capacity class M, Icu=55kA @ 415V, 3-pole, TM240 thermal-magnetic trip, In=125A, overload Ir=88A...125A, short-circuit Ii=5...10 x In, with undervoltage release (UVR) 208-230V AC 50/60Hz and 2 auxiliary switches HQ.","salesMarkdown":"The Siemens 3VA1112-5EF32-0DC0 is a 3-pole IEC frame 160 molded-case circuit breaker with a 125 A thermal-magnetic trip unit (TM240) and a 55 kA interrupting capacity at 415 V AC — that is the 'M' breaking capacity class, sized for industrial distribution where fault currents are high but not extreme. The overload protection is adjustable from 88 A to 125 A via the Ir dial; short-circuit pickup (Ii) is fixed at 5 to 10 times In, so on the 125 A setting that means 625 to 1250 A magnetic trip. That range covers motor inrush and transformer magnetizing currents without nuisance tripping on starting, but still clears a bolted fault fast. This order code also ships with an undervoltage release (UVR) rated 208–230 V AC, 50/60 Hz, and two HQ auxiliary switches — the UVR drops the breaker if control voltage falls below about 85 % of rated, which is standard for emergency-stop or power-loss sequences on a machine. A nut keeper kit is included in the package for secure mounting in a panel where vibration is a concern. The UVR and aux switches are factory-installed; no field wiring of add-on modules is needed, which saves a step during panel build-out.","metaTitle":"Siemens 3VA1112-5EF32-0DC0 Circuit Breaker, 125A, 55kA @ 415","metaDescription":"Siemens 3VA1112-5EF32-0DC0 circuit breaker, IEC frame 160, 55kA breaking capacity at 415V, 125A, with UVR and aux switches. 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=480438&mlfb=3VA1112-5EF32-0DC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-5EF32-0DC0/alternatives.json"},"ai":{"faq":[{"question":"What does the 'M' breaking capacity class mean on this breaker?","answer":"The 'M' class means an Icu of 55 kA at 415 V AC — that is the maximum fault current the breaker can safely interrupt. It sits between the standard 'N' class (around 36 kA) and the high-performance 'H' class (70 kA), making it a good fit for industrial main switchboards or large sub-distribution boards where fault levels are in the 40–55 kA range."},{"question":"What is the overload adjustment range on this breaker?","answer":"The TM240 thermal-magnetic trip unit has an adjustable overload protection (Ir) from 88 A to 125 A, and a fixed short-circuit pickup (Ii) of 5 to 10 times In — so at the 125 A setting, the magnetic trip activates between 625 A and 1250 A."},{"question":"Where can I buy 3VA1112-5EF32-0DC0?","answer":"This part is sourced to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-5EF32-0DC0","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/3VA1112-5EF32-0DC0 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}}