{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SQ2270-2YA04","brand":"Siemens","brandSlug":"siemens","productSlug":"5SQ2270-2YA04","canonicalUrl":"https://aoctrl.com/siemens/5SQ2270-2YA04","factsUrl":"https://aoctrl.com/api/mcp/products/5SQ2270-2YA04","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SQ2270-2YA04 miniature circuit breaker, 2-pole, C-curve, 4 A rated current, 400 V AC, 3 kA breaking capacity per EN 60898, IP20.","salesMarkdown":"The neutral conductor is switched internally, so this single module handles both phase and neutral protection in a 2-pole format. The 2-pole design with neutral switching makes this a 2-module-width unit — it occupies two DIN-rail spaces in the enclosure. ## Panel integration IP20 finger-safe protection is typical for enclosed panel mounting — no additional shrouding needed inside a closed cabinet. Overvoltage category 3 confirms suitability for fixed installations with transient overvoltages up to 4 kV phase-to-earth.","metaTitle":"Siemens SENTRON 5SQ2270-2YA04 MCB, 2P, C 4A, 400V AC, 3kA","metaDescription":"Siemens SENTRON 5SQ2270-2YA04 miniature circuit breaker, 2-pole, C-curve, 4 A rated current, 400 V AC, 3 kA breaking capacity per EN 60898. IP20. Current lifecycle stage. Available","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":"4 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":"$89.80","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=472479&mlfb=5SQ2270-2YA04","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SQ2270-2YA04/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SQ2270-2YA04?","answer":"The breaking capacity is 3 kA per EN 60898 at 400 V AC. This is the maximum fault current the MCB can safely interrupt under standard test conditions."},{"question":"Where can I buy 5SQ2270-2YA04?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"Will 5SQ2270-2YA04 drop into a panel specified around 5SQ2570-2YA04?","answer":"Yes — both are 2-pole, 4 A, C-curve MCBs with identical installation depth (55 mm) and IP20 rating. The 5SQ2570-2YA04 shares the same electrical ratings and physical footprint, so no rewiring or panel modification is needed for a direct swap."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SQ2270-2YA04","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/5SQ2270-2YA04 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}}