{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SN6304-8CP","brand":"Siemens","brandSlug":"siemens","productSlug":"5SN6304-8CP","canonicalUrl":"https://aoctrl.com/siemens/5SN6304-8CP","factsUrl":"https://aoctrl.com/api/mcp/products/5SN6304-8CP","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SN series miniature circuit breaker, 3-pole, C-curve, 400 V AC, 6 kA (EN 60898) / 30 kA (IEC 60947-2), 3 modular width units.","salesMarkdown":"## Siemens 5SN6304-8CP — 3-pole C-curve MCB for panel protection It's rated at 400 V AC, 50 Hz, and carries a 6 kA breaking capacity per EN 60898 and 30 kA per IEC 60947-2 — the IEC 60947-2 figure is the one you use for industrial panel coordination, since it covers the higher fault currents you'd see downstream of a transformer. Three modular width units (54 mm wide, 90 mm tall, 76 mm deep with 70 mm installation depth) — it occupies three standard 18 mm DIN-rail slots, so check your panel layout if you're swapping in for a narrower 1- or 2-pole unit. The 72 V DC maximum rating means it can also switch DC control circuits up to that voltage, but the primary duty is AC. Maximum solid conductor cross-section is 35 mm², which handles feeder and branch wiring without a separate terminal adapter. Snap-on DIN-rail mount, 3-pole design — it clips into any standard 35 mm rail. Terminal screws accept solid or stranded up to 35 mm², and the neutral bus can be fed from either end.","metaTitle":"Siemens 5SN6304-8CP MCB 3-pole C-curve 400V 6kA/30kA","metaDescription":"Siemens 5SN6304-8CP miniature circuit breaker, 3-pole, C-curve, 400V AC, 6 kA per EN 60898, 30 kA per IEC 60947-2. Current lifecycle stage. Quoted to order against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["3-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"54 mm","title":"5SN6304-8CP","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","description":"MCB 5SN","Number Of Poles":"3","lifecycle_stage":"current","Installation Depth":"70 mm","at DC rated value maximum":"72 V","Number Of Modular Width Units":"3","supply voltage at AC rated value":"400 V","according to EN 60898 rated value":"6 kA","Supply Voltage Frequency Rated Value":"50 Hz","according to IEC 60947-2 rated value":"30 kA","with multi-phase operation at AC maximum":"440 V","with multi-phase operation at AC rated value":"440 V","with single-phase operation at AC rated value":"440 V","Connectable Conductor Cross-Section Solid Maximum":"35 mm²","Mechanical Service Life (Operating Cycles) Typical":"10 000","power loss [W] for rated value of the current at AC in hot operating state per pole":"1.2 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ba3262742f8fe5b273b3ed102240ae6d.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1647276&mlfb=5SN6304-8CP"},"ai":{"faq":[{"question":"What is 5SN6304-8CP's listed depth (76 mm) on this component line?","answer":"The overall depth is 76 mm, with an installation depth of 70 mm — that's the dimension behind the panel face, which matters for shallow enclosures."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SN6304-8CP","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/5SN6304-8CP 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}}