{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SQ2570-0KA03","brand":"Siemens","brandSlug":"siemens","productSlug":"5SQ2570-0KA03","canonicalUrl":"https://aoctrl.com/siemens/5SQ2570-0KA03","factsUrl":"https://aoctrl.com/api/mcp/products/5SQ2570-0KA03","rawCanonicalId":null},"summary":{"shortDescription":"SENTRON 5SQ series miniature circuit breaker, 2-pole 1P+N, C-curve, 3 A, 3 kA breaking capacity per EN 60898, 240 V AC, 50 Hz.","salesMarkdown":"Rated 3 A at 240 V AC, 50 Hz, with a C tripping characteristic, it is sized for moderate inrush loads like small motor starters or lighting banks where the C-curve holds off transient surges up to 5–10 times rated current before tripping. Overvoltage category 3 and energy limiting class 3 align with standard distribution board duty — it limits let-through energy during a fault, protecting downstream wiring and connected equipment. The 1P+N format means the neutral is switched internally — no need for a separate neutral link, which simplifies wiring in single-phase sub-circuits where both poles need isolation.","metaTitle":"SENTRON 5SQ2570-0KA03 MCB, 2-pole C 3 A, 3 kA, 240 V AC","metaDescription":"SENTRON 5SQ2570-0KA03 miniature circuit breaker, 2-pole 1P+N, C-curve, 3 A, 3 kA breaking capacity per EN 60898, 240 V AC, 50 Hz. Current lifecycle stage. Sourced to order against","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["1-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":"1P+N","circuit-breaker / Design":"5SQ","Current / at AC / rated value":"3 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":"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=77706&mlfb=5SQ2570-0KA03","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SQ2570-0KA03/alternatives.json"},"ai":{"faq":[{"question":"What is 5SQ2570-0KA03's number of poles and pole configuration?","answer":"It is a 2-pole breaker configured as 1P+N — one protected pole (line) and one switched neutral pole. The neutral conductor is switched internally."},{"question":"What is the breaking capacity of 5SQ2570-0KA03?","answer":"3 kA per EN 60898 at 240 V AC. That is the maximum prospective short-circuit current the breaker can safely interrupt under standard test conditions."},{"question":"Where can I buy 5SQ2570-0KA03 and get current pricing?","answer":"This 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."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SQ2570-0KA03","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/5SQ2570-0KA03 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}}