{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SQ2270-2YA20","brand":"Siemens","brandSlug":"siemens","productSlug":"5SQ2270-2YA20","canonicalUrl":"https://aoctrl.com/siemens/5SQ2270-2YA20","factsUrl":"https://aoctrl.com/api/mcp/products/5SQ2270-2YA20","rawCanonicalId":null},"summary":{"shortDescription":"SENTRON 5SQ2270-2YA20, miniature circuit breaker, 2-pole, C-curve 20 A, 3 kA at 400 V AC, IP20, 55 mm depth.","salesMarkdown":"The C-curve (5-10x In) handles moderate inrush from motorized loads like pumps or small compressors without nuisance tripping. At 2 width units (approx 36 mm) and 55 mm installation depth, it fits compactly into a SENTRON distribution board or any DIN-rail enclosure. IP20 finger-safe terminals suit dry indoor panels; no washdown rating here. Neutral conductor is switched internally (product function / neutral conductor switching = Yes), so this 2-pole unit breaks both phase and neutral. Overvoltage category 3 and energy limiting class 3 are standard for branch-circuit protection in fixed installations.","metaTitle":"SENTRON 5SQ2270-2YA20 MCB, 2-pole C 20 A, 3 kA","metaDescription":"SENTRON 5SQ2270-2YA20 miniature circuit breaker, 2-pole, C-curve 20 A, 3 kA breaking capacity at 400 V AC per EN 60898. IP20, 55 mm depth. Current lifecycle stage. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Number of poles":"2","Type of voltage":"AC/DC","lifecycle_stage":"current","Installation depth":"55 mm","Product brand name":"SENTRON","Protection class IP":"IP20","Overvoltage category":"3","Energy limiting class":"3","Number of width units":"2","Number of poles / Note":"2P","circuit-breaker / Design":"5SQ","Current / at AC / rated value":"20 A","Tripping characteristic class":"C","acc. to EN 60898 / rated value":"3 kA","Supply voltage / at AC / rated value":"400 V","Supply voltage frequency / rated value":"50 Hz","Product function / neutral conductor switching":"Yes"}},"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=121465&mlfb=5SQ2270-2YA20","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SQ2270-2YA20/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SQ2270-2YA20?","answer":"3 kA rated value per EN 60898 at 400 V AC, suitable for standard final-distribution fault levels."},{"question":"Will 5SQ2270-2YA20 drop into a panel specified around 5SQ2270-2YA04 without rewiring?","answer":"Yes — both are 2-pole, C-curve, 400 V AC, 3 kA MCBs with the same 55 mm depth and 2 width units. The only difference is the current rating: 20 A vs 4 A. Form, fit, and function are identical; no rewiring needed if the load current matches."},{"question":"Where can I buy 5SQ2270-2YA20 and get current pricing?","answer":"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 quote."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SQ2270-2YA20","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/5SQ2270-2YA20 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}}