{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1112-5MH36-0AF0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1112-5MH36-0AF0","canonicalUrl":"https://aoctrl.com/siemens/3VA1112-5MH36-0AF0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1112-5MH36-0AF0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA1 series, IEC frame 160, breaking capacity class M, 3-pole circuit breaker, 125 A, 55 kA Icu at 415 V, starter protection TM120M, AM, clamp connection, with 1 auxiliary switch HQ and 1 trip alarm switch HQ.","salesMarkdown":"The Siemens 3VA1112-5MH36-0AF0 is a 3-pole IEC frame 160 circuit breaker rated 125 A with a 55 kA breaking capacity (Icu) at 415 V, placing it in breaking capacity class M. This is a motor-starting protection variant (TM120M, AM) — it provides short-circuit protection with an adjustable instantaneous trip (Ii) from 5 to 15 times In, but no overload protection, so it pairs with a separate overload relay for motor branch circuits. The adjustable instantaneous trip (5–15 x In) lets you set the magnetic trip threshold between 625 A and 1875 A, which you coordinate with the downstream motor's locked-rotor current and upstream protective device. Because it omits overload protection, you must add a separate thermal overload relay (e.g., Siemens 3RU2 series) in the motor starter assembly. ## Panel Integration Clamp terminals accept conductors without lugging, which speeds panel wiring.","metaTitle":"Siemens 3VA1112-5MH36-0AF0 Circuit Breaker, 125A, 55kA @ 415","metaDescription":"Siemens 3VA1112-5MH36-0AF0 IEC frame 160 circuit breaker, 125A, 55kA breaking capacity at 415V. Current lifecycle stage. 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=70663&mlfb=3VA1112-5MH36-0AF0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1112-5MH36-0AF0/alternatives.json"},"ai":{"faq":[{"question":"How do I get pricing and availability for 3VA1112-5MH36-0AF0?","answer":"This part is sourced and quoted to order against an RFQ. Submit a request for current pricing and availability; the quote will reflect real-time supply conditions."},{"question":"What is the breaking capacity of this circuit breaker?","answer":"It has a 55 kA Icu at 415 V, which is the maximum fault current it can safely interrupt at that voltage."},{"question":"Does this breaker include overload protection?","answer":"No, it is a starter-protection variant (TM120M, AM) with short-circuit protection only. You must pair it with a separate overload relay for motor overload protection."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1112-5MH36-0AF0","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/3VA1112-5MH36-0AF0 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}}