{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY6320-7CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY6320-7CC","canonicalUrl":"https://aoctrl.com/siemens/5SY6320-7CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SY6320-7CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY6320-7CC, 3-pole miniature circuit breaker, 20 A rated, C-curve, 6 kA breaking capacity per EN 60898, 440 V AC.","salesMarkdown":"The Siemens 5SY6320-7CC is a SENTRON miniature circuit breaker rated 20 A with a C-curve trip characteristic, 3 poles, and a 6 kA breaking capacity per EN 60898 at 440 V AC. This is the part you spec into a 3-phase distribution board for general-purpose branch-circuit protection — lighting, small motor feeds, control transformers, that kind of load. The C-curve (5–10x In) handles moderate inrush without nuisance tripping, so it's a common choice for mixed resistive-inductive circuits in industrial panels. The 20 A rating holds at 35 °C ambient; derate to 18.8 A at 40 °C, 18.18 A at 45 °C, 17.52 A at 50 °C, and 16.84 A at 55 °C — so if your enclosure runs hot, you need to account for that or step up one frame size. The 3-pole design switches all three phases together; there's no neutral pole (neutral conductor switching is not supported), so plan for a separate neutral bar or a 4-pole breaker if you need switched neutral. It snaps onto DIN rail (quick assembly system), mounts in any position, and takes up 3 modular width units — 54 mm wide, 90 mm tall, 76 mm deep plus 70 mm installation depth behind the panel. The terminals are combined top and bottom, which simplifies busbar routing.","metaTitle":"Siemens 5SY6320-7CC SENTRON MCB, 20 A C-curve 3P 6 kA","metaDescription":"Siemens 5SY6320-7CC SENTRON miniature circuit breaker, 20 A rated, C-curve, 3-pole, 6 kA breaking capacity per EN 60898. Active production, sourced to order. Request 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":"5SY6320-7CC","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 6kA, 3-pole, C, 20A","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"3P","Number Of Poles":"3","lifecycle_stage":"current","Fastening Method":"Quick assembly system","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"3","Product Designation":"Miniature circuit breaker","at AC / rated value":"20 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","Energy Limitation Class":"3","according to EN 61346-2":"F","at 35 °C / rated value":"20 A","at 40 °C / rated value":"18.8 A","at 45 °C / rated value":"18.18 A","at 50 °C / rated value":"17.52 A","at 55 °C / rated value":"16.84 A","Combined Terminal Bottom":"Yes","according to IEC 81346-2":"F","Suitability For Operation":"Mechanical engineering / industry","Neutral Conductor Switching":"No","Number Of Modular Width Units":"3","Tripping Characteristic Class":"C","Position / Of Power Supply Cord":"Any","according to EN 60898 / rated value":"6 kA","Influence Of The Surrounding Temperature":"max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C","Type Of Voltage / Of The Operating Voltage":"AC","Value Range / Of The Supply Voltage Frequency":"50/60 Hz","with multi-phase operation / at AC / rated value":"440 V","operating voltage / at DC / rated value / maximum":"72 V","vibration resistance / according to IEC 60068-2-6":"±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz","with single-phase operation / at AC / rated value":"440 V","Mechanical Service Life (Switching Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/f75deed20b5e05af0104d722fa5d27e0.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=68381&mlfb=5SY6320-7CC"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY6320-7CC","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/5SY6320-7CC 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}}