{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA1220-6GF42-0AH0","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA1220-6GF42-0AH0","canonicalUrl":"https://aoctrl.com/siemens/3VA1220-6GF42-0AH0","factsUrl":"https://aoctrl.com/api/mcp/products/3VA1220-6GF42-0AH0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3VA1 series, IEC frame 250 circuit breaker, breaking capacity class H, Icu=70kA @ 415V, 4-pole, line protection TM240, ATAM, In=200A, overload Ir=140-200A, short-circuit Ii=5-10xIn, N conductor protection 100%, 2 auxiliary switches changeover, 1 trip alarm switch changeover.","salesMarkdown":"The Siemens 3VA1220-6GF42-0AH0 is an IEC frame 250 molded case circuit breaker with a 70 kA interrupting capacity at 415 V — class H on the 3VA1 platform. Four poles, line protection via a TM240 thermal-magnetic trip unit, rated In=200 A, with overload adjustable Ir=140...200 A and short-circuit pickup Ii=5...10 × In. The N conductor is protected at 100% — full-rated neutral, not a reduced section. Two auxiliary changeover switches and one trip alarm switch come fitted, so the panel builder gets status feedback and a separate alarm contact without adding external blocks. The TM240 trip unit gives a thermal curve shaped for cable and busbar protection, not motor overload — so this is a feeder or main breaker, not a motor circuit protector. Overload adjustable from 140 to 200 A in steps, short-circuit fixed at 5 to 10 times the rated current (1000 to 2000 A at the 200 A setting). That Ii range is typical for line protection; if you need a lower magnetic pickup for a long cable run, the TM240 may not be the right trip. The 100% N conductor protection means the neutral pole is rated the same as the phase poles — important for systems with high neutral harmonics (e.g., non-linear loads, VFDs with 3rd harmonic content). The auxiliary and alarm switches are wired internally, so the panel wiring just lands on the terminal blocks — no separate mounting or adjustment. Four-pole, so it occupies the full width of the frame; check gland-plate fill factor if the panel is tight. The TM240 trip unit is field-interchangeable within the 3VA1 frame, but the breaker ships with it fitted. Auxiliary and alarm switches are factory-installed and not field-addable on this order code — if you need more than two aux contacts, order a variant with the expanded switch pack. No external power required for the trip unit; it's self-powered from the line side.","metaTitle":"Siemens 3VA1220-6GF42-0AH0 Circuit Breaker, 70kA @ 415V","metaDescription":"Siemens 3VA1220-6GF42-0AH0 IEC frame 250 circuit breaker, 70kA breaking capacity @ 415V, 4-pole, TM240, In=200A. Current lifecycle stage. Available 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=1353892&mlfb=3VA1220-6GF42-0AH0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA1220-6GF42-0AH0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA1220-6GF42-0AH0?","answer":"Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time."},{"question":"What is the breaking capacity of this breaker?","answer":"70 kA Icu at 415 V, breaking capacity class H on the IEC frame 250 platform."},{"question":"What protection settings does the TM240 trip unit offer?","answer":"Overload protection adjustable Ir=140...200 A, short-circuit protection Ii=5...10 × In (1000-2000 A at the 200 A setting)."},{"question":"Does this breaker include auxiliary and alarm contacts?","answer":"Yes, it ships with two auxiliary changeover switches and one trip alarm switch changeover, factory-fitted."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA1220-6GF42-0AH0","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/3VA1220-6GF42-0AH0 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}}