{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SN6302-8CP","brand":"Siemens","brandSlug":"siemens","productSlug":"5SN6302-8CP","canonicalUrl":"https://aoctrl.com/siemens/5SN6302-8CP","factsUrl":"https://aoctrl.com/api/mcp/products/5SN6302-8CP","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SN series, 3-pole miniature circuit breaker (MCB), C-curve, 400 V AC, 6 kA (EN 60898) / 30 kA (IEC 60947-2).","salesMarkdown":"The Siemens 5SN6302-8CP is a 3-pole miniature circuit breaker from the SENTRON 5SN series, occupying 3 modular width units (54 mm) on a DIN rail. Rated at 400 V AC, 50 Hz, it carries a 6 kA breaking capacity per EN 60898 for residential and commercial branch circuits, and a 30 kA rating per IEC 60947-2 for industrial panel coordination — meaning it can interrupt fault currents up to 30 kA at the panel level, which covers most downstream short-circuit scenarios without requiring a current-limiting upstream device. ## C-curve trip and thermal limits Ambient range covers -40 °C to 75 °C, which handles unheated outdoor cabinets and hot machine compartments alike. ## Wire sizing and terminal capacity Solid conductor cross-section up to 35 mm² fits the terminals — that covers the full range of load-side wiring for a 3-pole MCB at this voltage class.","metaTitle":"Siemens 5SN6302-8CP MCB, 3-Pole C-Curve, 6kA/30kA","metaDescription":"Siemens 5SN6302-8CP 3-pole MCB, C-curve, 6kA per EN 60898, 30kA per IEC 60947-2, 400V AC. Current production. Sourced 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":"5SN6302-8CP","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/97a0b2c8a5c2b0a356959126fc0ee4ef.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1647272&mlfb=5SN6302-8CP"},"ai":{"faq":[{"question":"What are the key ratings for 5SN6302-8CP?","answer":"3-pole, C-curve, rated 400 V AC at 50 Hz, with 6 kA breaking capacity per EN 60898 and 30 kA per IEC 60947-2. Ambient range -40 °C to 75 °C. Occupies 3 modular units (54 mm wide) on DIN rail."},{"question":"Where can I buy 5SN6302-8CP?","answer":"Sourced to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time."},{"question":"Will 5SN6302-8CP drop into a panel specified around 5SY4304-7CV?","answer":"Yes, the 5SN6302-8CP shares the same 76 mm depth, 54 mm width (3 modular units), 70 mm installation depth, and DIN-rail mounting as the 5SY4304-7CV. The key difference is breaking capacity: 30 kA per IEC 60947-2 on this part versus 15 kA on the 5SY4304-7CV, so the 5SN6302-8CP offers higher fault-current headroom without a footprint change."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SN6302-8CP","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/5SN6302-8CP 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}}