{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SQ2170-2YA08","brand":"Siemens","brandSlug":"siemens","productSlug":"5SQ2170-2YA08","canonicalUrl":"https://aoctrl.com/siemens/5SQ2170-2YA08","factsUrl":"https://aoctrl.com/api/mcp/products/5SQ2170-2YA08","rawCanonicalId":null},"summary":{"shortDescription":"SENTRON 5SQ2170-2YA08, 1-pole miniature circuit breaker, C-curve 8 A, 3 kA per EN 60898, 240 V AC, IP20, 55 mm depth.","salesMarkdown":"The SENTRON 5SQ2170-2YA08 is a 1-pole miniature circuit breaker with a C tripping characteristic, rated 8 A at 240 V AC and a 3 kA breaking capacity per EN 60898. The C-curve (5–10× In) makes it suitable for moderate inrush loads — think lighting banks, small transformers, or motor control circuits where the start-up surge exceeds a B-curve's tolerance but doesn't need the D-curve's high hold. Rated 8 A at 240 V AC, 50 Hz, with a 3 kA breaking capacity per EN 60898. The AC/DC voltage type means the same unit can be used on DC circuits up to the rated voltage, though the DC breaking capacity isn't separately stated here — verify for pure DC applications. The 55 mm installation depth leaves clearance behind most standard enclosure backplates. No neutral conductor switching; this pole protects the line only.","metaTitle":"SENTRON 5SQ2170-2YA08 Miniature Circuit Breaker, 1P C 8 A, 3","metaDescription":"SENTRON 5SQ2170-2YA08 1-pole miniature circuit breaker, C-curve, 8 A rated current, 3 kA breaking capacity per EN 60898, 240 V AC. IP20. Current lifecycle stage. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Number of poles":"1","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":"1","Number of poles / Note":"1P","circuit-breaker / Design":"5SQ","Current / at AC / rated value":"8 A","Tripping characteristic class":"C","acc. to EN 60898 / rated value":"3 kA","Supply voltage / at AC / rated value":"240 V","Supply voltage frequency / rated value":"50 Hz","Product function / neutral conductor switching":"No"}},"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=112639&mlfb=5SQ2170-2YA08","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SQ2170-2YA08/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SQ2170-2YA08 and get a price?","answer":"The part is 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 commercial offer."},{"question":"What is the number of poles on 5SQ2170-2YA08?","answer":"It is a 1-pole (1P) miniature circuit breaker, protecting a single line conductor with no neutral switching."},{"question":"What type of voltage does 5SQ2170-2YA08 accept?","answer":"It accepts both AC and DC supply voltage, rated 240 V AC at 50 Hz."},{"question":"Will 5SQ2170-2YA08 drop into a panel specified for 5SY4140-7?","answer":"Both are 1-pole SENTRON MCBs on 1 width unit (18 mm) with the same DIN-rail footprint, so the mechanical fit is identical. The key difference is breaking capacity: 5SQ2170-2YA08 is rated 3 kA per EN 60898, while 5SY4140-7 is rated 10 kA per the same standard. If the panel's available fault current exceeds 3 kA, the 5SY4140-7 or a higher-rated breaker is required."},{"question":"What compliance documentation is available for 5SQ2170-2YA08?","answer":"The breaker is designed to EN 60898 and carries overvoltage category 3 and energy limiting class 3 ratings. Specific RoHS, REACH, UL, or IEC declarations should be requested at quote time — the evidence does not list individual cert marks for this order code."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SQ2170-2YA08","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/5SQ2170-2YA08 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}}