{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4402-7CV","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4402-7CV","canonicalUrl":"https://aoctrl.com/siemens/5SY4402-7CV","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4402-7CV","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SY4402-7CV, MCB, Icu=15kA 400V 4P C2.","salesMarkdown":"If a PCN arrives, the manufacturer typically provides a form-fit-function replacement within the same 5SY4 family, but as of now no successor has been announced. The 4-pole width occupies 4 module spaces (72 mm at 18 mm per pole). Terminals accept copper conductors up to 25 mm² for the line and load sides; torque to the nameplate value (typically 2.5–3.0 Nm for this class). When grouping multiple breakers in an enclosure, account for the thermal derating: the 2 A C-curve is calibrated for an ambient of 30 °C. Above that, the continuous current rating must be reduced per the manufacturer's derating curve — a detail often missed during panel layout that can cause nuisance tripping on a warm summer day.","metaTitle":"Siemens 5SY4402-7CV MCB, 15kA 400V 4P C2","metaDescription":"Siemens 5SY4402-7CV miniature circuit breaker, 4-pole C-curve 2A, 15kA breaking capacity at 400V. Current lifecycle stage. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/e45cf746c4a722ffbaa40459357f1645.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1531608&mlfb=5SY4402-7CV","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY4402-7CV/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of the 5SY4402-7CV?","answer":"The 5SY4402-7CV has an interrupting capacity (Icu) of 15 kA at 400 V AC, which qualifies it for high-fault installations where standard 6 kA or 10 kA breakers would not be adequate."},{"question":"Where can I buy the 5SY4402-7CV and 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."},{"question":"What does the description MCB Icu=15kA 400V 4P C2 mean?","answer":"It is a miniature circuit breaker (MCB) with a 15 kA interrupting capacity at 400 V, 4 poles (all poles switched), and a C-trip curve rated at 2 A."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4402-7CV","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/5SY4402-7CV 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}}