{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SQ2170-2YA05","brand":"Siemens","brandSlug":"siemens","productSlug":"5SQ2170-2YA05","canonicalUrl":"https://aoctrl.com/siemens/5SQ2170-2YA05","factsUrl":"https://aoctrl.com/api/mcp/products/5SQ2170-2YA05","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SQ series, miniature circuit-breaker, 1-pole, C-curve, 0.5 A, 240 V AC/DC, 3 kA per EN 60898, IP20, 55 mm depth.","salesMarkdown":"The Siemens SENTRON 5SQ2170-2YA05 is a 1-pole miniature circuit-breaker rated 0.5 A with a C tripping characteristic, designed for branch-circuit protection in 240 V AC/DC systems. The 55 mm installation depth and single width unit mean it drops into standard DIN-rail enclosures without crowding adjacent breakers. ## C-curve and breaking capacity The C-curve trips at 5–10× rated current, so the 0.5 A unit clears moderate inrush from small transformers or capacitive loads without nuisance trips. The 0.5 A rating is low enough to protect signal-conditioning circuits or control transformers — not a typical motor branch. ## Panel integration IP20 rated — for enclosed panel use only, not washdown or outdoor. The 55 mm depth fits standard 60 mm deep DIN-rail enclosures; single width unit (approx. 18 mm) leaves room for adjacent breakers or accessories. Overvoltage category 3 and energy limiting class 3 align with typical residential final-circuit coordination.","metaTitle":"Siemens SENTRON 5SQ2170-2YA05 MCB, 1P C 0.5A, 3kA","metaDescription":"Siemens SENTRON 5SQ2170-2YA05 miniature circuit-breaker, 1-pole, C-curve, 0.5 A, 240 V AC/DC, 3 kA breaking capacity per EN 60898. IP20, 55 mm depth. Current production. Sourced to","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":"0.5 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":"$34.81","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=214451&mlfb=5SQ2170-2YA05","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SQ2170-2YA05/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SQ2170-2YA05?","answer":"The part is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time."},{"question":"Will 5SQ2170-2YA05 drop into a panel specified around 5SQ2170-2YA15 without rewiring?","answer":"Yes — both are 1-pole, 55 mm depth, single width unit, same C-curve and 3 kA breaking capacity. The only difference is the 0.5 A rating versus 1.6 A; swap is mechanical fit, but the branch circuit must be sized for the lower 0.5 A rating."},{"question":"What is the number of poles for 5SQ2170-2YA05?","answer":"It is a 1-pole (1P) miniature circuit-breaker."},{"question":"What type of voltage does 5SQ2170-2YA05 accept?","answer":"AC/DC, with a rated supply voltage of 240 V AC at 50 Hz."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SQ2170-2YA05","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/5SQ2170-2YA05 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}}