{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SQ2170-0KA05","brand":"Siemens","brandSlug":"siemens","productSlug":"5SQ2170-0KA05","canonicalUrl":"https://aoctrl.com/siemens/5SQ2170-0KA05","factsUrl":"https://aoctrl.com/api/mcp/products/5SQ2170-0KA05","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SQ series miniature circuit breaker, 5SQ2170-0KA05, 1-pole, C-curve, 5 A, 3 kA per EN 60898, 240 V AC, 50 Hz, IP20, 1 width unit, current lifecycle.","salesMarkdown":"## SENTRON 5SQ2170-0KA05 — 1-pole C-curve MCB, 5 A, 3 kA The Siemens SENTRON 5SQ2170-0KA05 is a 1-pole miniature circuit breaker (MCB) with a C-curve tripping characteristic, rated 5 A at 240 V AC, 50 Hz. Breaking capacity is 3 kA per EN 60898 — the standard for household and similar installations, certifying overcurrent and short-circuit protection in final circuits. Overvoltage category 3 and energy limiting class 3 mean it handles distribution-level transients and limits let-through energy for downstream equipment. IP20 finger-safe terminals suit enclosed panel mounting; the 55 mm depth and single width unit (approx. 18 mm) fit standard DIN-rail enclosures without crowding neighboring devices. At 5 A, it protects a 1.1 kW resistive load at 240 V or a smaller motor branch. The 3 kA breaking capacity is adequate for most final sub-distribution boards within a building, but if your fault level at the panel exceeds 3 kA (common near a transformer or in industrial switchgear), you'll need a higher-rated upstream device or a different breaker. The single pole switches line only; neutral is not switched, which is standard for single-phase final circuits in TN systems.","metaTitle":"Siemens SENTRON 5SQ2170-0KA05 MCB, 1P C-curve 5A 3kA 240V","metaDescription":"Siemens SENTRON 5SQ2170-0KA05 miniature circuit breaker, 1-pole, C-curve, 5 A rated, 3 kA breaking capacity per EN 60898, 240 V AC, IP20. Current lifecycle. Sourced to order agains","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":"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":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=7663&mlfb=5SQ2170-0KA05","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SQ2170-0KA05/alternatives.json"},"ai":{"faq":[{"question":"What is 5SQ2170-0KA05's number of poles and voltage rating?","answer":"It is a 1-pole breaker rated 240 V AC at 50 Hz, with AC/DC voltage type. It switches the line conductor only; neutral is not switched."},{"question":"Will 5SQ2170-0KA05 drop into a panel specified for 5SQ2170-2YA15?","answer":"Yes, the two breakers share the same 1-pole footprint, 55 mm depth, single width unit, and IP20 enclosure. No rewiring or panel modification is needed — the only difference is the 5 A versus 1.6 A current rating."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SQ2170-0KA05","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/5SQ2170-0KA05 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}}