{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SQ2170-0KA63","brand":"Siemens","brandSlug":"siemens","productSlug":"5SQ2170-0KA63","canonicalUrl":"https://aoctrl.com/siemens/5SQ2170-0KA63","factsUrl":"https://aoctrl.com/api/mcp/products/5SQ2170-0KA63","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SQ2170-0KA63, 1-pole miniature circuit breaker (MCB), C-curve, 63 A rated current, 3 kA breaking capacity, 240 V AC, 50 Hz, IP20.","salesMarkdown":"The Siemens SENTRON 5SQ2170-0KA63 is a 1-pole miniature circuit breaker (MCB) rated for 63 A at 240 V AC, 50 Hz, with a C tripping characteristic and a 3 kA breaking capacity certified to both EN 60898 and IEC 60947-2. This is a current-production part, still in the active catalog. The 63 A rating on a single pole means this breaker handles the full load current on one phase — typical for a high-draw single-phase branch circuit or a large lighting/general-purpose load in a 240 V AC distribution board. ## Panel integration Occupies 1 width unit (roughly 18 mm) on a DIN rail. Installation depth is 55 mm, which fits standard 63 A MCB enclosures. Overvoltage category 3 and energy limiting class 3 are standard for this class of MCB.","metaTitle":"Siemens 5SQ2170-0KA63 SENTRON MCB, 1P C 63A 3kA","metaDescription":"Siemens SENTRON 5SQ2170-0KA63 miniature circuit breaker, 1-pole, C-curve, 63 A rated current, 3 kA breaking capacity per EN 60898/IEC 60947-2, 240 V AC, 50 Hz. IP20, 55 mm depth. C","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":"63 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":"No"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$28.56","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=311348&mlfb=5SQ2170-0KA63","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SQ2170-0KA63/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 5SQ2170-0KA63?","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 your quantity and required delivery window."},{"question":"What is the breaking capacity of the 5SQ2170-0KA63?","answer":"The breaking capacity is 3 kA, certified to both EN 60898 and IEC 60947-2. This is the maximum fault current the breaker can safely interrupt."},{"question":"Does the 5SQ2170-0KA63 switch the neutral?","answer":"No, this is a 1-pole breaker that switches only the phase conductor. Neutral conductor switching is not a function of this device."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SQ2170-0KA63","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/5SQ2170-0KA63 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}}