{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1216-5MH32-0BC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1216-5MH32-0BC0","canonicalUrl":"https://aoctrl.com/siemens/3VA1216-5MH32-0BC0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1216-5MH32-0BC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA1 series, IEC frame 250, breaking capacity class M, 3-pole MCCB, Icu=55kA @ 415V, TM120M starter protection, In=160A, undervoltage release 24V DC, nut keeper kit.","salesMarkdown":"The Siemens 3VA1216-5MH32-0BC0 is a 3-pole IEC frame 250 MCCB from the 3VA1 series, rated for 55 kA breaking capacity at 415 V (class M). It ships with a TM120M thermal-magnetic trip unit set at 160 A, configured for starter protection — meaning the magnetic short-circuit pickup is adjustable from 7 to 16 times In, and there is no overload protection element in this variant (the overload function is handled externally by the starter). An undervoltage release (UVR) at 24 V DC is integrated, plus a nut keeper kit for the terminals. The 55 kA Icu at 415 V places this breaker in the M (medium) breaking capacity class per IEC 60947-2. For a 160 A frame, 55 kA is substantial headroom; you can coordinate this downstream of a larger upstream device without worrying about cascading failure. ## Starter protection trip curve — the so-what The TM120M trip unit with Ii adjustable 7–16 x In means the magnetic instantaneous trip point can be set between 1120 A and 2560 A. Because overload protection is omitted here, this breaker is intended to pair with a separate overload relay or motor starter — the MCCB handles only short-circuit and ground-fault protection. ## Undervoltage release and auxiliary components The nut keeper kit retains the terminal nuts, preventing loosening under vibration or thermal cycling. Both are factory-fitted; no field assembly required.","metaTitle":"Siemens 3VA1216-5MH32-0BC0 Circuit Breaker, 55kA @ 415V, 160","metaDescription":"Siemens 3VA1216-5MH32-0BC0 IEC frame 250 MCCB, 55kA breaking capacity at 415V, 3-pole, TM120M starter protection, undervoltage release 24V DC. Current lifecycle stage. Quoted to or","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=569167&mlfb=3VA1216-5MH32-0BC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1216-5MH32-0BC0/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of this MCCB?","answer":"The 3VA1216-5MH32-0BC0 has an Icu of 55 kA at 415 V AC, placing it in breaking capacity class M per IEC 60947-2."},{"question":"Does this breaker include overload protection?","answer":"No — this variant is configured for starter protection only. The TM120M trip unit provides adjustable short-circuit protection (Ii = 7–16 x In), but overload protection must be handled by an external overload relay or starter."},{"question":"What voltage does the undervoltage release require?","answer":"The integrated undervoltage release (UVR) operates on 24 V DC."},{"question":"Where can I buy the 3VA1216-5MH32-0BC0 and how is it quoted?","answer":"This part is sourced and quoted to order through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time, not listed here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1216-5MH32-0BC0","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/3VA1216-5MH32-0BC0 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}}