{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SQ2270-2YA16","brand":"Siemens","brandSlug":"siemens","productSlug":"5SQ2270-2YA16","canonicalUrl":"https://aoctrl.com/siemens/5SQ2270-2YA16","factsUrl":"https://aoctrl.com/api/mcp/products/5SQ2270-2YA16","rawCanonicalId":null},"summary":{"shortDescription":"SENTRON 5SQ2270-2YA16 miniature circuit breaker, 2-pole, C-curve, 16 A rated current, 3 kA breaking capacity at 400 V AC, 2 modular width units.","salesMarkdown":"## SENTRON 5SQ2270-2YA16 — 2-pole C-curve MCB at 16 A The 2-pole configuration (2P) switches both phase and neutral, with the neutral conductor switching function built in — the neutral pole opens and closes with the line pole, which is required for single-phase circuits where the neutral must be isolated during maintenance. The part occupies 2 modular width units (18 mm each) on a DIN rail, fitting standard 36 mm of panel space. ## Panel integration and environment","metaTitle":"SENTRON 5SQ2270-2YA16 MCB, 2-Pole C 16 A, 3 kA","metaDescription":"SENTRON 5SQ2270-2YA16 miniature circuit breaker, 2-pole, C-curve, 16 A, 3 kA breaking capacity at 400 V AC. Current lifecycle. Sourced 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","Degree Of Pollution":"3","Product Designation":"Miniature circuit breaker","protection class IP":"IP20","Overvoltage Category":"3","Design Of The Product":"Miniature circuit breaker 5SQ","Number Of Poles / Note":"2P","Energy Limitation Class":"3","Number Of Modular Width Units":"2","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","operational current / at AC / rated value":"16 A","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=173352&mlfb=5SQ2270-2YA16","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SQ2270-2YA16/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SQ2270-2YA16 and how do I get a price?","answer":"The 5SQ2270-2YA16 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is 5SQ2270-2YA16's listed number of poles?","answer":"The 5SQ2270-2YA16 is a 2-pole (2P) miniature circuit breaker, switching both phase and neutral."},{"question":"What is 5SQ2270-2YA16's listed type of voltage?","answer":"The 5SQ2270-2YA16 is rated for AC/DC voltage, with a rated AC supply voltage of 400 V at 50 Hz."},{"question":"Will 5SQ2270-2YA16 drop into a panel specified around 5SQ2270-2YA04 without rewiring?","answer":"Yes — both the 5SQ2270-2YA16 (16 A) and the 5SQ2270-2YA04 (4 A) share the same 2-pole form factor, 2 MWU footprint, 55 mm depth, and DIN-rail mounting. The only difference is the rated current; if the circuit load is 16 A, the 5SQ2270-2YA16 is a direct mechanical and electrical fit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SQ2270-2YA16","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/5SQ2270-2YA16 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}}