{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4620-6","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4620-6","canonicalUrl":"https://aoctrl.com/siemens/5SY4620-6","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4620-6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON, miniature circuit breaker, 5SY4620-6, 4-pole (3P+N), 20 A, B characteristic, 10 kA per EN 60898 / 20 kA per IEC 60947-2, 4 MW units, IP20.","salesMarkdown":"It carries dual interrupting ratings: 10 kA under EN 60898-1 and 20 kA under IEC 60947-2 / UL1077, so it covers both residential-distribution board and industrial panel applications depending on the standard the local code follows. The quick-assembly fastening system snaps onto the rail without tools. ## Thermal derating and environment Rated 20 A at 35 °C ambient. Derates to 19.04 A at 40 °C, 18.54 A at 45 °C, 18.04 A at 50 °C, 17.5 A at 55 °C, and 16.96 A at 60 °C. If the panel runs warm, size the upstream protection accordingly. Ambient operating range is -40 to 75 °C. Humidity limits: 95% RH up to 55 °C, derating to 55% at 70 °C and 35% at 75 °C.","metaTitle":"Siemens 5SY4620-6 SENTRON MCB, 20A B-Curve 4-Pole 10/20kA","metaDescription":"Siemens 5SY4620-6 SENTRON miniature circuit breaker, 20 A rated, B characteristic, 4-pole (3P+N), 10 kA per EN 60898 / 20 kA per IEC 60947-2. Active production, sourced to order. R","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["4-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"72 mm","title":"5SY4620-6","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Standard":"IEC / EN 60898-1, IEC / EN 60947-2 / UL1077","description":"Miniature circuit breaker 400 V 10kA, 3+N-pole, B, 20 A, D=70 mm","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"3P+N","Number Of Poles":"4","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":"19.04 A","at 45 °C / rated value":"18.54 A","at 50 °C / rated value":"18.04 A","at 55 °C / rated value":"17.5 A","at 60 °C / rated value":"16.96 A","Combined Terminal Bottom":"Yes","according to IEC 81346-2":"F","Suitability For Operation":"Mechanical engineering / industry","Number Of Modular Width Units":"4","Tripping Characteristic Class":"B","Position / Of Power Supply Cord":"Any","Product Feature / Touch Protection":"Yes","according to EN 60898 / rated value":"10 kA","according to IEC 60947-2 / rated value":"20 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","at DC / according to IEC 60947-2 / rated value":"15 kA","Product Component / Neutral Conductor Switching":"Yes","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/6081205359a03ee38cab28a49d2f8cf4.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=189005&mlfb=5SY4620-6"},"ai":{"faq":[{"question":"Where can I buy 5SY4620-6 and get a price?","answer":"The part is sourced and quoted to order against an RFQ through independent distribution. Submit a request for quote; availability and current pricing are confirmed at quote time."},{"question":"What is the difference between 5SY4620-6 and 5SY4140-7?","answer":"The 5SY4140-7 is a 4-pole (3P+N) B-curve MCB but rated 40 A instead of 20 A. Both share the same 4 MW DIN footprint, dual interrupting ratings (10/20 kA), and SENTRON series. The choice is purely the current rating — the 5SY4620-6 is the 20 A variant for lower-current branch circuits."},{"question":"What compliance documentation does Siemens provide for 5SY4620-6?","answer":"The breaker is certified to IEC/EN 60898-1 and IEC/EN 60947-2 / UL1077. It is halogen-free and silicon-free. Standard compliance documentation (declaration of conformity, RoHS, REACH) is available from the manufacturer."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4620-6","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/5SY4620-6 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}}