{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SN6320-8CP","brand":"Siemens","brandSlug":"siemens","productSlug":"5SN6320-8CP","canonicalUrl":"https://aoctrl.com/siemens/5SN6320-8CP","factsUrl":"https://aoctrl.com/api/mcp/products/5SN6320-8CP","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SN6320-8CP, 3-pole miniature circuit breaker, C-curve, 400 V AC, 6 kA per EN 60898 / 15 kA per IEC 60947-2, 50 Hz, 3 modular width units.","salesMarkdown":"Its C-curve tripping characteristic means it handles moderate inrush currents — typical for motor starters, lighting banks, and transformer-fed loads — without nuisance trips, while still clearing short circuits within the rated breaking capacity. Frequency is fixed at 50 Hz — not dual-rated for 60 Hz, so verify if the installation runs on 60 Hz supply. On the DC side, rated at 72 V maximum — suitable for control circuits in that voltage range, but not for higher DC bus voltages common in VFD or battery systems. Occupies 3 modular width units (54 mm) on a DIN rail, with a depth of 76 mm and an installation depth of 70 mm — fits standard SENTRON distribution boards and most third-party enclosures with 70+ mm internal depth. Accepts solid conductors up to 35 mm² — enough for the incoming supply on a 3-pole circuit feeding a sub-distribution board or a large motor load.","metaTitle":"Siemens 5SN6320-8CP MCB 3-Pole C-Curve 400V 6kA/15kA","metaDescription":"Siemens SENTRON 5SN6320-8CP 3-pole miniature circuit breaker, C-curve, 400V AC, 6 kA (EN 60898) / 15 kA (IEC 60947-2). Active production, sourced to order. Request quote.","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":"5SN6320-8CP","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":"15 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/7933bb6aabb442b75daae4fb2c69ea13.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1647288&mlfb=5SN6320-8CP"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SN6320-8CP?","answer":"Dual-rated: 6 kA per EN 60898 and 15 kA per IEC 60947-2, both at 400 V AC. The 15 kA IEC rating is the one that applies in industrial panels with higher prospective fault current."},{"question":"Will 5SN6320-8CP drop into a panel specified for 5SL4363-7 without rewiring?","answer":"Yes, the 5SN6320-8CP and the peer 5SL4363-7 share the same footprint: 76 mm depth, 54 mm width (3 modular units), 90 mm height, and 70 mm installation depth. The 5SN6320-8CP has a lower breaking capacity (6 kA vs 10 kA per EN 60898; 15 kA vs 10 kA per IEC 60947-2), so verify the fault level at the installation point before substituting."},{"question":"Where can I buy 5SN6320-8CP?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Submit a request for quote; 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/5SN6320-8CP","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/5SN6320-8CP 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}}