{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SN6320-8CN","brand":"Siemens","brandSlug":"siemens","productSlug":"5SN6320-8CN","canonicalUrl":"https://aoctrl.com/siemens/5SN6320-8CN","factsUrl":"https://aoctrl.com/api/mcp/products/5SN6320-8CN","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SN6 series, miniature circuit breaker, 3-pole, D tripping characteristic, 20 A rated current, 6 kA breaking capacity at 400 V AC, order code 5SN6320-8CN.","salesMarkdown":"## Integrator's spec recap The Siemens 5SN6320-8CN is a SENTRON 5SN6 miniature circuit breaker (MCB) with a D tripping characteristic, rated 20 A at 400 V AC across three poles. Its 6 kA breaking capacity per EN 60898 covers most commercial and light industrial panelboard applications where fault levels stay under that threshold. The D-curve (10–20× In) is the right call for loads with high inrush — motor starters, small transformers, or banks of LED drivers — where a B or C curve would nuisance-trip on the magnetizing surge. ## Mounting and wiring Occupies 3 width units (54 mm) on a DIN rail. Mounting position is unrestricted — any orientation works, which simplifies layout in tight enclosures. Installation depth is 70 mm, overall depth 76 mm. Terminals accept solid or stranded conductors from 0.75 to 25 mm²; tighten to 2.5–3 N·m. The housing is IP20 with conductors connected — standard for panelboard use, not for wet areas.","metaTitle":"Siemens 5SN6320-8CN SENTRON MCB, 3P D 20 A, 6 kA","metaDescription":"Siemens 5SN6320-8CN SENTRON miniature circuit breaker, 3-pole, D-curve, 20 A, 6 kA breaking capacity at 400 V AC. Active 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","Solid":"0.75 ... 25 mm²","Width":"54 mm","title":"5SN6320-8CN","Height":"90 mm","Sealable":"Yes","Stranded":"0.75 ... 25 mm²","Rated Value":"50 Hz","description":"Circuit breaker 400V, 6kA, 3-pole, D, 20 A","Halogen-Free":"Yes","Silicon-Free":"Yes","Wertebereich":"-25 ... +45 °C","Number of poles":"3","Type of voltage":"AC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Ambient temperature":"-40 ... +75 °C","Product designation":"Miniature circuit breaker","Protection class IP":"IP20, with connected conductors","Overvoltage category":"3","Design of the product":"Miniature circuit breaker 5SN","Number of width units":"3","Number of poles / Note":"3P","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","circuit-breaker / Design":"5SN6CN","Current / at AC / rated value":"20 A","Tripping characteristic class":"D","at DC / rated value / maximum":"60 V","acc. to EN 60898 / rated value":"6 kA","Product feature / Touch protection":"Yes","Supply voltage / at AC / rated value":"400 V","Influence of the surrounding temperature":"Periodically +55°C, max. 95% humidity","Vibration resistance / acc. to IEC 60068-2-6":"50 m/s² at 25 to 150 Hz","with multi-phase operation / at AC / maximum":"440 V","Tightening torque / with screw-type terminals":"2.5 ... 3 N·m","Product function / neutral conductor switching":"No","with multi-phase operation / at AC / rated value":"440 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/0730120c9c2fb7f7952170141388e630.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=397470&mlfb=5SN6320-8CN"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SN6320-8CN?","answer":"The 5SN6320-8CN has a rated breaking capacity of 6 kA per EN 60898 at 400 V AC."},{"question":"What conductor sizes does 5SN6320-8CN accept?","answer":"Terminals accept solid or stranded conductors from 0.75 to 25 mm²."},{"question":"Where can I buy 5SN6320-8CN and get current pricing?","answer":"The 5SN6320-8CN is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time."},{"question":"What is the depth of 5SN6320-8CN?","answer":"Overall depth is 76 mm; installation depth is 70 mm."},{"question":"What compliance documentation is available for 5SN6320-8CN?","answer":"The 5SN6320-8CN is halogen-free and silicon-free, rated overvoltage category III, and tested to IEC 60068-2-6 for vibration. Standard SENTRON documentation includes EN 60898 certification."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SN6320-8CN","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/5SN6320-8CN 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}}