{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SQ2370-0KA50","brand":"Siemens","brandSlug":"siemens","productSlug":"5SQ2370-0KA50","canonicalUrl":"https://aoctrl.com/siemens/5SQ2370-0KA50","factsUrl":"https://aoctrl.com/api/mcp/products/5SQ2370-0KA50","rawCanonicalId":null},"summary":{"shortDescription":"SENTRON 5SQ2370-0KA50, 3-pole MCB, C-curve 50 A, 3 kA breaking capacity at 400 V AC, 50 Hz, IP20.","salesMarkdown":"The SENTRON 5SQ2370-0KA50 is a 3-pole miniature circuit breaker (MCB) in the 5SQ series, rated 50 A with a C tripping curve and a 3 kA breaking capacity per EN 60898 at 400 V AC, 50 Hz. ## Panel fit and environment Rated IP20, so it's for dry indoor panels only; no washdown or outdoor exposure. No neutral switching (3P, not 3P+N); the neutral bar passes through unswitched. Listed as current production (lifecycle stage: current). No obsolescence notice or last-time-buy date on record. For current pricing and availability, submit an RFQ — the part is sourced through independent distribution and quoted to order. No official successor exists because none is needed; this is the active variant.","metaTitle":"SENTRON 5SQ2370-0KA50 MCB, 3P C-curve 50 A, 3 kA","metaDescription":"SENTRON 5SQ2370-0KA50 circuit breaker, 3-pole, C-curve, 50 A rated, 3 kA breaking capacity at 400 V AC, 50 Hz. IP20, current production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Number of poles":"3","Type of voltage":"AC/DC","lifecycle_stage":"current","Installation depth":"55 mm","Product brand name":"SENTRON","Degree of pollution":"3","Protection class IP":"IP20","Overvoltage category":"3","Energy limiting class":"3","Number of width units":"3","Number of poles / Note":"3P","circuit-breaker / Design":"5SQ","Current / at AC / rated value":"50 A","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","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=94022&mlfb=5SQ2370-0KA50","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SQ2370-0KA50/alternatives.json"},"ai":{"faq":[{"question":"What is the number of poles on 5SQ2370-0KA50?","answer":"3 poles (3P), with no neutral pole switching."},{"question":"What type of voltage does 5SQ2370-0KA50 accept?","answer":"AC/DC — the supply voltage at AC is rated 400 V, 50 Hz."},{"question":"Will 5SQ2370-0KA50 drop into a panel specified around 5SQ2370-2YA04 without rewiring?","answer":"Yes — same 3-pole, same C-curve, same 3 kA breaking capacity, same 55 mm depth and 3 width units. The only difference is the current rating: 50 A vs 4 A. If the panel's load and upstream protection are sized for 50 A, it's a direct mechanical swap."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SQ2370-0KA50","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/5SQ2370-0KA50 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}}