{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL6420-7BB","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL6420-7BB","canonicalUrl":"https://aoctrl.com/siemens/5SL6420-7BB","factsUrl":"https://aoctrl.com/api/mcp/products/5SL6420-7BB","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL6420-7BB miniature circuit breaker, 4-pole, C-curve, 20 A rated at 400 V AC, 6 kA breaking capacity per IEC 60898 and IEC 60947-2.","salesMarkdown":"The Siemens 5SL6420-7BB is a SENTRON miniature circuit breaker (MCB) in a 4-pole (4P) configuration, C-curve tripping characteristic, rated 20 A at 400 V AC. Current production — no phase-out notice on record. The 5SL6 series is Siemens' standard residential/infrastructure MCB line, widely specified across Europe and Asia. For a BOM freeze, this part is stable; no PCN or LTB expected in the near term. The breaker does not switch the neutral (4P without neutral switching), so it's a straight 4-pole overcurrent protection device for three-phase loads where the neutral is solidly connected. Temperature derating is published: 18.94 A at 40 °C, 18.4 A at 45 °C, 17.24 A at 55 °C — factor that into the panel thermal design if the breaker is in a warm cabinet.","metaTitle":"Siemens 5SL6420-7BB SENTRON MCB, 4P C-20A 6kA","metaDescription":"Siemens 5SL6420-7BB SENTRON miniature circuit breaker, 4-pole, C-curve, 20 A, 6 kA breaking capacity per IEC 60898. Current production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Depth":"76 mm","Width":"72 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"4","Type Of Voltage":"AC","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":"III","Number Of Poles / Note":"4P","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","at 30 °C / rated value":"20 A","at 40 °C / rated value":"18.94 A","at 45 °C / rated value":"18.4 A","at 55 °C / rated value":"17.24 A","Suitability For Operation":"Residential buildings/infrastructure","Number Of Modular Width Units":"4","Tripping Characteristic Class":"C","at DC / rated value / maximum":"72 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","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","Mechanical Service Life (Operating Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/f89338303db62cb8c7aaf733803ebb7d.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=258987&mlfb=5SL6420-7BB","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SL6420-7BB/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL6420-7BB","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/5SL6420-7BB when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}