{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SQ2570-0KA16","brand":"Siemens","brandSlug":"siemens","productSlug":"5SQ2570-0KA16","canonicalUrl":"https://aoctrl.com/siemens/5SQ2570-0KA16","factsUrl":"https://aoctrl.com/api/mcp/products/5SQ2570-0KA16","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SQ2570-0KA16 miniature circuit breaker, 2-pole 1P+N, C-curve, 16 A, 3 kA breaking capacity per EN 60898 and IEC 60947-2, 240 V AC, 50 Hz, IP20.","salesMarkdown":"The Siemens SENTRON 5SQ2570-0KA16 is a 2-pole miniature circuit breaker with 1P+N configuration, rated 16 A at 240 V AC, 50 Hz, with a C tripping characteristic. The 55 mm installation depth and 2 width units fit standard DIN-rail enclosures. IP20 finger-safe terminals are adequate for enclosed panel mounting. ## Panel-builder commissioning notes Neutral conductor switching is integrated, so the neutral bar is opened and closed with the protected pole. This eliminates the need for a separate neutral disconnect in single-phase final sub-circuits where the installation standard requires both phase and neutral interruption. Verify that the neutral terminal accepts the conductor cross-section you are running — the evidence does not list the terminal capacity, so confirm against the physical marking before terminating. Energy limiting class 3 indicates the breaker limits let-through energy effectively under fault conditions, which aids downstream device coordination.","metaTitle":"Siemens SENTRON 5SQ2570-0KA16 MCB, 2-pole 1P+N, C-curve 16 A","metaDescription":"Siemens SENTRON 5SQ2570-0KA16 miniature circuit breaker, 2-pole 1P+N, C tripping characteristic, 16 A rated current, 3 kA breaking capacity per EN 60898 and IEC 60947-2, 240 V AC,","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":"16 A","Tripping characteristic class":"C","acc. to EN 60898 / rated value":"3 kA","acc. to IEC 60947-2 / 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=2963&mlfb=5SQ2570-0KA16","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SQ2570-0KA16/alternatives.json"},"ai":{"faq":[{"question":"What does 1P+N mean on this breaker?","answer":"1P+N means one pole is protected (overcurrent sensing and interruption) and the neutral pole is switched (opens and closes with the protected pole) but not protected. This is common in single-phase final circuits where the neutral must be disconnected for isolation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SQ2570-0KA16","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/5SQ2570-0KA16 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}}