{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SQ2170-0KA25","brand":"Siemens","brandSlug":"siemens","productSlug":"5SQ2170-0KA25","canonicalUrl":"https://aoctrl.com/siemens/5SQ2170-0KA25","factsUrl":"https://aoctrl.com/api/mcp/products/5SQ2170-0KA25","rawCanonicalId":null},"summary":{"shortDescription":"SENTRON T55 miniature circuit breaker, 1-pole, C-curve, 25 A rated current, 3 kA breaking capacity (EN 60898) at 240 V AC, 50 Hz, IP20, 55 mm installation depth.","salesMarkdown":"## SENTRON T55 1-pole MCB, 25 A, C-curve — fit and ratings Overvoltage category 3 and energy limiting class 3 confirm it's rated for fixed-installation use downstream of the utility meter. Rated for AC/DC supply voltage, though the 3 kA breaking capacity is stated for AC only. The single-pole design (1P) does not switch the neutral — confirm your circuit requires only phase protection. Installation depth is 55 mm, fitting standard 18 mm modular-width enclosures. IP20 rated, so it belongs inside a closed distribution board or panel, not exposed to washdown or dust. ## Panel integration — DIN-rail fit One width unit (18 mm) and 55 mm depth leave room for adjacent breakers and wiring ducts in a typical distribution board. No neutral-switching function, so the neutral bar or busbar must be continuous through the enclosure. IP20 with connected conductors — wire it inside a closed panel only.","metaTitle":"SENTRON 5SQ2170-0KA25 Circuit Breaker, 1-Pole, C, 25 A, 3 kA","metaDescription":"SENTRON 5SQ2170-0KA25 1-pole miniature circuit breaker, 25 A, C-curve, 3 kA breaking capacity per EN 60898 at 240 V AC. IP20, 55 mm depth. Current lifecycle stage. Sourced to order","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":"25 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=369578&mlfb=5SQ2170-0KA25","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SQ2170-0KA25/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 5SQ2170-0KA25?","answer":"Submit an RFQ with your target quantity and delivery timeline. Pricing and stock position are confirmed at quote time through independent distribution channels; the active lifecycle status means the factory supply chain is open."},{"question":"What is the number of poles on 5SQ2170-0KA25?","answer":"It is a 1-pole (1P) breaker, switching the phase conductor only. No neutral pole is switched."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SQ2170-0KA25","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/5SQ2170-0KA25 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}}