{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4632-8CV","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4632-8CV","canonicalUrl":"https://aoctrl.com/siemens/5SY4632-8CV","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4632-8CV","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SY4632-8CV, MCB Icu=15kA 400V 3P+N D32, current lifecycle.","salesMarkdown":"The 5SY4632-8CV is a Siemens miniature circuit breaker (MCB) with a D tripping characteristic, rated at 32 A per pole, in a 3P+N configuration — three protected poles plus a switched neutral. The headline number is the interrupting capacity: 15 kA at 400 V AC. That means this breaker can safely clear a fault current up to 15,000 A at 400 V without welding its contacts or rupturing the case, which is the figure that decides whether it holds up on a high-fault-capacity industrial panel fed by a transformer. ## Deployment context Snap-on DIN rail mount, standard 18 mm per pole width. The 3P+N unit occupies four modules (72 mm) on the rail. Rated for 400 V phase-to-phase, so it slots into a 3-phase 4-wire TN or TT distribution board feeding motor starters, small transformers, or lighting circuits where the D curve matches the load inrush.","metaTitle":"5SY4632-8CV MCB Icu=15kA 400V 3P+N D32, current lifecycle","metaDescription":"Siemens 5SY4632-8CV MCB, 15kA interrupting capacity at 400V, 3P+N, D32 curve. 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":{"title":"5SY4632-8CV","description":"MCB Icu=15KA 400V 3P+N D32","lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/5427051e5efb9daf9c5982d5d6b905ec.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1531707&mlfb=5SY4632-8CV"},"ai":{"faq":[{"question":"What is the interrupting capacity of the 5SY4632-8CV?","answer":"15 kA at 400 V AC, which is the Icu (ultimate breaking capacity) per IEC 60898. That rating governs its use on high-fault-current industrial panels."},{"question":"Where can I buy the 5SY4632-8CV?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or price is published here."},{"question":"What does the D32 rating mean on this MCB?","answer":"D32 means a D tripping curve (magnetic trip at 10–20× rated current) and a 32 A thermal rating. It is selected for loads with high inrush, such as motor circuits or transformer primaries, where a B or C curve would trip on startup."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4632-8CV","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/5SY4632-8CV when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}