{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL4320-8CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL4320-8CC","canonicalUrl":"https://aoctrl.com/siemens/5SL4320-8CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SL4320-8CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL miniature circuit breaker, 5SL4320-8CC, 3-pole, D tripping characteristic, 20 A rated current, 10 kA breaking capacity at 400 V AC, 3 width units.","salesMarkdown":"The Siemens 5SL4320-8CC is a SENTRON 5SL miniature circuit breaker — 3-pole, D-curve, 20 A, breaking 10 kA at 400 V AC. Rated for residential and infrastructure panels, but the 10 kA SCCR and overvoltage category 3 rating let it serve light commercial sub-distribution too. Compared to the 5SL6606-7YA (4-pole, C-curve, 6 A, 6 kA), this 5SL4320-8CC is a different animal: three poles instead of four, D-curve instead of C, and 20 A instead of 6 A. The 5SL6606-7YA also switches the neutral; this unit does not. If your panel was laid out for the 5SL6606-7YA, the 5SL4320-8CC will not drop in — different width (54 mm vs 72 mm), different pole count, different curve. No rewiring shortcut here. Mounts on DIN rail — any position, thanks to the any-position rating. The 54 mm width (3 width units) fits standard distribution board cutouts. Wire range 0.75 to 25 mm², so it accepts both control-circuit tails and feeder conductors.","metaTitle":"Siemens 5SL4320-8CC SENTRON MCB, 3P D 20A 10kA 400V","metaDescription":"Siemens 5SL4320-8CC SENTRON miniature circuit breaker, 3-pole, D-curve, 20 A, 10 kA breaking capacity at 400 V AC. Active production. Sourced to order. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["3-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"54 mm","title":"5SL4320-8CC","Height":"90 mm","Maximum":"25 mm²","Minimum":"0.75 mm²","Sealable":"Yes","Rated Value":"50 Hz","description":"Miniature circuit breaker 400 V 10kA, 3-pole, D, 20 A Circuit breaker 400 V 10kA, 3-pole, D, 20 A","Halogen-Free":"Yes","Silicon-Free":"Yes","Number of poles":"3","Type of voltage":"AC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Product designation":"Miniature circuit breaker","Protection class IP":"IP20, with connected conductors","Overvoltage category":"3","Design of the product":"5SL miniature circuit breakers","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":"5SL4CC","Suitability for operation":"Residential buildings/infrastructure","Current / at AC / rated value":"20 A","Tripping characteristic class":"D","at DC / rated value / maximum":"60 V","acc. to EN 60898 / rated value":"10 kA","Product feature / Touch protection":"Yes","Supply voltage / at AC / rated value":"400 V","Influence of the surrounding temperature":"+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","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/b97409499536e89ee77516dc7ad97276.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=495873&mlfb=5SL4320-8CC"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL4320-8CC","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/5SL4320-8CC 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}}