{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY6620-8CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY6620-8CC","canonicalUrl":"https://aoctrl.com/siemens/5SY6620-8CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SY6620-8CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY6620-8CC miniature circuit breaker, 4-pole (3P+N), 20 A rated current, D tripping characteristic, 6 kA breaking capacity per EN 60898, 5 kA per UL 1077, 400 V AC, IP20.","salesMarkdown":"## Siemens SENTRON 5SY6620-8CC — 4-Pole 20 A D-Curve MCB The Siemens SENTRON 5SY6620-8CC is a 4-pole miniature circuit breaker (3P+N) rated at 20 A with a D tripping characteristic, designed for AC circuits at 400 V rated voltage and 50/60 Hz. It provides a breaking capacity of 6 kA per EN 60898 and 5 kA per UL 1077 / CSA C22.2 No. 235, making it suitable for protecting motor circuits, transformers, and other inductive loads that cause high inrush currents. The D-curve trips between 10× and 20× rated current (200–400 A), which handles the magnetizing inrush of motors and power supplies without nuisance tripping — a common requirement in mechanical engineering and industrial panel builds. Accepts any mounting position and any power supply cord orientation, which simplifies layout in crowded enclosures. Combined terminals at both top and bottom accept conductors without separate busbar connectors. Touch protection is built in. The neutral conductor is switched (3P+N), so the breaker isolates all poles including neutral — required in some regional wiring regulations and for full isolation during maintenance. Rated for ambient temperatures from -40 °C to 75 °C, with derating for humidity: max 95% RH at 55 °C, tapering to 35% at 75 °C. Halogen-free and silicon-free construction reduces outgassing in sensitive environments like food processing or clean rooms.","metaTitle":"Siemens 5SY6620-8CC SENTRON MCB, 4P, 20 A, D Curve, 6 kA","metaDescription":"Siemens SENTRON 5SY6620-8CC miniature circuit breaker, 4-pole 3P+N, 20 A, D tripping characteristic, 6 kA per EN 60898, 5 kA per UL 1077. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["4-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"72 mm","title":"5SY6620-8CC","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Rated Value":"50/60 Hz","description":"Miniature circuit breaker 400 V 6kA, 3+N-pole, D, 20A","Halogen-Free":"Yes","Silicon-Free":"Yes","Mounting type":"Quick assembly system","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":"3","Product designation":"Miniature circuit breaker","Protection class IP":"IP20, with connected conductors","at AC / rated value":"400 V","Overvoltage category":"III","Combined Terminal Top":"Yes","Number of width units":"4","Number of poles / Note":"3P+N","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","Combined Terminal Bottom":"Yes","circuit-breaker / Design":"5SY6CC","Suitability for operation":"Mechanical engineering / industry","Current / at AC / rated value":"20 A","Tripping characteristic class":"D","at DC / rated value / maximum":"72 V","acc. to EN 60898 / rated value":"6 kA","Position / of power supply cord":"Any","Product feature / Touch protection":"Yes","Influence of the surrounding temperature":"max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C","at AC / acc. to UL 1077 and CSA C22.2 No.235":"5 kA","Product function / neutral conductor switching":"Yes","with multi-phase operation / at AC / rated value":"440 V","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/482886e7b71322d90678c968f51a7a3d.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=23586&mlfb=5SY6620-8CC"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SY6620-8CC?","answer":"The 5SY6620-8CC has a breaking capacity of 6 kA per EN 60898 and 5 kA per UL 1077 / CSA C22.2 No. 235."},{"question":"Where can I buy the Siemens 5SY6620-8CC?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time."},{"question":"What compliance documentation does Siemens provide for 5SY6620-8CC?","answer":"The breaker is certified to EN 60898 and UL 1077 / CSA C22.2 No. 235, and is halogen-free and silicon-free. Specific RoHS/REACH declarations are available from the manufacturer upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY6620-8CC","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/5SY6620-8CC 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}}