{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SJ6320-7KS","brand":"Siemens","brandSlug":"siemens","productSlug":"5SJ6320-7KS","canonicalUrl":"https://aoctrl.com/siemens/5SJ6320-7KS","factsUrl":"https://aoctrl.com/api/mcp/products/5SJ6320-7KS","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SJ6320-7KS miniature circuit breaker, 3-pole, tripping characteristic C, 20 A rated current, 6 kA breaking capacity, 400 V AC, screwless outgoing terminals, 3 MW units wide.","salesMarkdown":"## What this MCB delivers on the panel The Siemens SENTRON 5SJ6320-7KS is a 3-pole miniature circuit breaker rated 20 A with a C tripping characteristic, meaning it handles moderate inrush currents from motor starters or lighting ballasts without nuisance tripping while still protecting downstream wiring. Its 6 kA breaking capacity per EN 60898 and IEC 60947-2 is sufficient for most residential and light commercial distribution boards; at 400 V AC it clears line-to-line faults on three-phase circuits. Installation depth is 70 mm from the rail face to the back of the terminals; overall depth including the toggle is 76 mm. ## Environmental range and material compliance Rated for ambient temperatures from -40 °C to +75 °C, with periodic exposure up to +55 °C at 95% relative humidity. Touch protection is integral, and the breaker is sealable for tamper-proofing after commissioning.","metaTitle":"Siemens 5SJ6320-7KS SENTRON MCB, 3P C 20A 6kA","metaDescription":"Siemens SENTRON 5SJ6320-7KS miniature circuit breaker, 3-pole, C-curve, 20 A, 6 kA breaking capacity per EN 60898 & IEC 60947-2. Active production, sourced to order.","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":"5SJ6320-7KS","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 6kA, 3-pole, C, 20 A, D=70 mm with screwless outgoing terminals","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"3","Type Of Voltage":"AC/DC","lifecycle_stage":"current","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"2","Product Designation":"Miniature circuit breaker","acc. to IEC 81346-2":"F","at AC / rated value":"20 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"3","Design Of The Product":"Miniature circuit breaker 5SJ6","Number Of Poles / Note":"3P","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","Suitability For Operation":"Residential buildings/infrastructure","Number Of Modular Width Units":"3","Tripping Characteristic Class":"C","at DC / rated value / maximum":"60 V","acc. to EN 60898 / rated value":"6 kA","acc. to IEC 60947-2 / 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","insulation voltage / at AC / rated value":"440 V","with multi-phase operation / at AC / maximum":"440 V","Product Function / Neutral Conductor Switching":"No","Mechanical Service Life (Operating Cycles) / Typical":"20 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/64365bd676744208683e4c89bd8c8f61.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=176462&mlfb=5SJ6320-7KS"},"ai":{"faq":[{"question":"What is 5SJ6320-7KS's listed depth on this component line?","answer":"Overall depth is 76 mm; installation depth from the DIN-rail face is 70 mm."},{"question":"What is 5SJ6320-7KS's listed width on this component line?","answer":"Width is 54 mm, which corresponds to 3 modular width units on standard DIN rail."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SJ6320-7KS","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/5SJ6320-7KS 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}}