{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SQ2370-0KA02","brand":"Siemens","brandSlug":"siemens","productSlug":"5SQ2370-0KA02","canonicalUrl":"https://aoctrl.com/siemens/5SQ2370-0KA02","factsUrl":"https://aoctrl.com/api/mcp/products/5SQ2370-0KA02","rawCanonicalId":null},"summary":{"shortDescription":"SENTRON 5SQ2370-0KA02, 3-pole miniature circuit breaker, C tripping characteristic, 2 A rated current, 3 kA breaking capacity per EN 60898 at 400 V AC, 50 Hz, IP20, 55 mm installation depth.","salesMarkdown":"The SENTRON 5SQ2370-0KA02 is a 3-pole miniature circuit breaker (MCB) from the 5SQ series, rated at 2 A with a C tripping characteristic. It is designed for 400 V AC, 50 Hz systems and carries a 3 kA breaking capacity per EN 60898 — the standard for household and similar installations, certifying it for branch-circuit protection in residential and light commercial distribution boards. The 3-pole format (3P, no neutral switching) occupies 3 width units on a DIN rail, with a 55 mm installation depth — standard for compact consumer-unit or sub-distribution enclosures. IP20 finger-safe terminals suit enclosed panel mounting; the part is not rated for exposed or washdown environments. The C-curve trips at 5–10× rated current (10–20 A for this 2 A unit), making it suitable for moderate inrush loads such as small motor starters, lighting banks, and transformer primaries. Overvoltage category 3 and energy limiting class 3 are consistent with fixed-installation mains protection.","metaTitle":"SENTRON 5SQ2370-0KA02 MCB, 3-pole C-curve 2 A, 3 kA","metaDescription":"SENTRON 5SQ2370-0KA02 miniature circuit breaker, 3-pole, C characteristic, 2 A rated, 3 kA breaking capacity per EN 60898 at 400 V AC. IP20, 55 mm deep. Current lifecycle stage. So","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Number of poles":"3","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":"3","Number of poles / Note":"3P","circuit-breaker / Design":"5SQ","Current / at AC / rated value":"2 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":"No"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$53.02","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=204280&mlfb=5SQ2370-0KA02","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SQ2370-0KA02/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SQ2370-0KA02 and how do I get a price?","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 a firm commercial response."},{"question":"What is 5SQ2370-0KA02's listed number of poles?","answer":"The 5SQ2370-0KA02 is a 3-pole device (3P), with no neutral conductor switching."},{"question":"What is 5SQ2370-0KA02's listed type of voltage?","answer":"The type of voltage is AC/DC — the breaker is rated for AC circuits at 400 V, 50 Hz."},{"question":"Will 5SQ2370-0KA02 drop into a panel specified around 5SQ2370-2YA04 without rewiring?","answer":"Yes — both are 3-pole, 55 mm deep, IP20, C-curve SENTRON 5SQ breakers with the same physical footprint and DIN-rail mounting. The only difference is the current rating: 2 A on the 5SQ2370-0KA02 versus 4 A on the 5SQ2370-2YA04. The breaker will fit the same busbar and enclosure without rewiring, but the load must not exceed 2 A."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SQ2370-0KA02","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/5SQ2370-0KA02 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}}