{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SN6306-8CP","brand":"Siemens","brandSlug":"siemens","productSlug":"5SN6306-8CP","canonicalUrl":"https://aoctrl.com/siemens/5SN6306-8CP","factsUrl":"https://aoctrl.com/api/mcp/products/5SN6306-8CP","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SN series, 3-pole miniature circuit breaker, C-trip characteristic, 6 kA (EN 60898) / 30 kA (IEC 60947-2), 400 V AC, 3 modular width units.","salesMarkdown":"## Siemens 5SN6306-8CP — SENTRON 3-Pole MCB, C-Curve It is rated for 400 V AC supply voltage (multi-phase operation up to 440 V AC) and carries a 6 kA breaking capacity per EN 60898 alongside a 30 kA rating per IEC 60947-2 — the higher figure governs fault clearance in industrial panel applications where the prospective short-circuit current exceeds the residential standard. The dual breaking-capacity rating is the key specification for panel coordination. ## Voltage Ratings and DC Capability Rated AC supply voltage is 400 V, with multi-phase and single-phase operation both accepted up to 440 V AC maximum. For DC circuits, the maximum rated voltage is 72 V — useful for control-voltage tap-offs or battery-backed buswork, though the DC breaking capacity is not separately stated here and should be verified against the prospective DC fault current. ## Physical Fit and Installation Dimensions are 90 mm height, 76 mm depth, and 54 mm width (3 modular units). Installation depth is 70 mm. The 54 mm width means it occupies three standard 18 mm DIN-rail module positions — a direct fit in any SENTRON or third-party distribution board that accepts modular devices. Solid conductors up to 35 mm² can be terminated, which covers most feeder and subfeed cable sizes in a panel.","metaTitle":"Siemens 5SN6306-8CP SENTRON MCB, 3P, C-Curve, 6kA/30kA","metaDescription":"Siemens 5SN6306-8CP SENTRON 3-pole MCB, C-trip curve, 6 kA per EN 60898, 30 kA per IEC 60947-2. Current-production. Sourced to order against 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":"5SN6306-8CP","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":"1.6 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/34f805d10c08add78a13508a0729d874.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1647278&mlfb=5SN6306-8CP"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SN6306-8CP?","answer":"It carries a dual rating: 6 kA according to EN 60898 and 30 kA according to IEC 60947-2. The 30 kA figure applies in industrial panel applications per the higher standard."},{"question":"Where can I buy 5SN6306-8CP?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SN6306-8CP","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/5SN6306-8CP 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}}