{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SQ3270-1BA25","brand":"Siemens","brandSlug":"siemens","productSlug":"5SQ3270-1BA25","canonicalUrl":"https://aoctrl.com/siemens/5SQ3270-1BA25","factsUrl":"https://aoctrl.com/api/mcp/products/5SQ3270-1BA25","rawCanonicalId":null},"summary":{"shortDescription":"SENTRON 5SQ3270-1BA25, miniature circuit breaker, 2-pole (1P+N), C-curve, 25 A rated at 240 V AC, 3 kA breaking capacity per EN 60898, IP20, 55 mm depth.","salesMarkdown":"## Quick fit check The SENTRON 5SQ3270-1BA25 is a 2-pole miniature circuit breaker (1P+N configuration) with a C-curve trip characteristic, rated 25 A at 240 V AC, 50 Hz. Breaking capacity is 3 kA per EN 60898. Neutral conductor switching is included — this is the integrated neutral pole, not a separate accessory. Overvoltage category 3 means it's rated for fixed-installation protection against switching surges. Energy limiting class 3 means it restricts let-through energy enough to protect downstream wiring and devices in most branch circuits. Snap-on DIN rail mount, 2 width units, 55 mm depth. IP20 finger-safe terminals — suitable for enclosed panel use only, not washdown or outdoor. Rated for AC/DC supply, so the same breaker can serve control transformers or DC power supplies in the same panel.","metaTitle":"SENTRON 5SQ3270-1BA25 MCB, 2-Pole, C-Curve, 25 A, 240 V AC","metaDescription":"SENTRON 5SQ3270-1BA25 miniature circuit breaker, 2-pole 1P+N, C-curve, 25 A, 240 V AC, 3 kA per EN 60898, IP20. Current lifecycle stage, available 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":"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":"1P+N","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":"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=149337&mlfb=5SQ3270-1BA25","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SQ3270-1BA25/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional alternative to 5SQ3270-1BA25?","answer":"The closest peer is 5SQ2270-2YA04, also a 2-pole C-curve SENTRON 5SQ breaker, but rated 4 A instead of 25 A. The 25 A version is the one you need for higher-current branch circuits; the 4 A variant suits control or lighting loads. Both share the same 55 mm depth, 2 width units, and 3 kA breaking capacity."},{"question":"Where can I buy 5SQ3270-1BA25?","answer":"Sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the number of poles on 5SQ3270-1BA25?","answer":"It is a 2-pole device in a 1P+N configuration — one phase pole plus a switched neutral."},{"question":"What type of voltage does 5SQ3270-1BA25 accept?","answer":"AC/DC. Rated 240 V AC at 50 Hz; the DC rating is not specified in this data, so for DC circuits verify the manufacturer's DC derating curve separately."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SQ3270-1BA25","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/5SQ3270-1BA25 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}}