{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SQ2270-0KA05","brand":"Siemens","brandSlug":"siemens","productSlug":"5SQ2270-0KA05","canonicalUrl":"https://aoctrl.com/siemens/5SQ2270-0KA05","factsUrl":"https://aoctrl.com/api/mcp/products/5SQ2270-0KA05","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SQ2270-0KA05, 2-pole miniature circuit breaker, C-curve, 5 A, 3 kA breaking capacity per EN 60898 at 400 V AC, IP20, 55 mm depth.","salesMarkdown":"## SENTRON 5SQ2270-0KA05 — 2-pole C-curve MCB for 5 A branch circuits The Siemens SENTRON 5SQ2270-0KA05 is a 2-pole miniature circuit breaker rated 5 A with a C tripping characteristic, designed for 400 V AC circuits and certified to EN 60898 with a 3 kA breaking capacity. The 2-pole design switches both live conductors simultaneously, with the neutral conductor switching function built in — useful for single-phase split or two-phase loads where you want full isolation. Rated for AC/DC voltage types, so it can be applied in DC control circuits as well, though the 3 kA breaking rating is specified under AC conditions per EN 60898.","metaTitle":"SENTRON 5SQ2270-0KA05 2-Pole C-Curve MCB, 5 A, 3 kA","metaDescription":"Siemens SENTRON 5SQ2270-0KA05 miniature circuit breaker, 2-pole, C-curve, 5 A rated, 3 kA breaking capacity per EN 60898 at 400 V AC. IP20, 55 mm depth. Sourced to order against RF","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["2-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":"2P","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":"400 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=143489&mlfb=5SQ2270-0KA05","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SQ2270-0KA05/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of the 5SQ2270-0KA05?","answer":"3 kA rated breaking capacity per EN 60898 at 400 V AC."},{"question":"What does the C-curve mean on this breaker?","answer":"The C tripping characteristic means the magnetic trip operates at 5–10 times the rated current (25–50 A for this 5 A unit), making it suitable for circuits with moderate inrush like small motors or lighting."},{"question":"Where can I buy the 5SQ2270-0KA05 and how is it quoted?","answer":"Sourced to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time; volume pricing is negotiable."},{"question":"Does the 5SQ2270-0KA05 switch the neutral?","answer":"Yes, the neutral conductor switching function is built in — the 2-pole design switches both poles simultaneously."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SQ2270-0KA05","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/5SQ2270-0KA05 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}}