{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SQ2270-2YA50","brand":"Siemens","brandSlug":"siemens","productSlug":"5SQ2270-2YA50","canonicalUrl":"https://aoctrl.com/siemens/5SQ2270-2YA50","factsUrl":"https://aoctrl.com/api/mcp/products/5SQ2270-2YA50","rawCanonicalId":null},"summary":{"shortDescription":"SENTRON 5SQ2270-2YA50 miniature circuit breaker, 2-pole, C-curve, 50 A, 400 V AC, 3 kA breaking capacity per EN 60898, IP20, 55 mm depth.","salesMarkdown":"The SENTRON 5SQ2270-2YA50 is a 2-pole miniature circuit breaker (MCB) rated 50 A at 400 V AC with a C tripping characteristic. The 3 kA breaking capacity per EN 60898 is the maximum fault current it can safely interrupt at 400 V; for most residential, commercial, and light industrial distribution boards this is sufficient, but verify against your panel's prospective short-circuit current (PSCC). The 55 mm installation depth fits standard distribution board cutouts; the 2 width units (36 mm per DIN 43880) occupy two module spaces on the DIN rail. ## Deployment context Snap-on DIN rail mounting, IP20 finger-safe terminals — intended for enclosed distribution boards or control panels where the breaker is not exposed to washdown or dust. The AC/DC voltage type means the same unit can be used on DC circuits up to 48 V or 60 V (derate current per manufacturer curve), though the primary rating is 400 V AC at 50 Hz.","metaTitle":"SENTRON 5SQ2270-2YA50 Miniature Circuit Breaker, 2-Pole, C 5","metaDescription":"SENTRON 5SQ2270-2YA50 miniature circuit breaker, 2-pole, C-curve, 50 A, 400 V AC, 3 kA breaking capacity per EN 60898. IP20. Current lifecycle stage. Quoted to order against RFQ.","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":"50 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=1704&mlfb=5SQ2270-2YA50","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SQ2270-2YA50/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SQ2270-2YA50?","answer":"3 kA per EN 60898 at 400 V AC. This is the maximum fault current it can safely interrupt; verify against your panel's prospective short-circuit current."},{"question":"Where can I buy 5SQ2270-2YA50?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"Will 5SQ2270-2YA50 drop into a panel specified for 5SQ2570-2YA04?","answer":"Yes — both are 2-pole, same 55 mm depth, same 2 width units, same DIN-rail footprint. The only difference is the current rating: 50 A vs 4 A. No rewiring or panel modification is needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SQ2270-2YA50","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/5SQ2270-2YA50 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}}