{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL6620-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL6620-7","canonicalUrl":"https://aoctrl.com/siemens/5SL6620-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SL6620-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL6620-7 miniature circuit breaker, 3P+N, 20 A, C tripping characteristic, 6 kA breaking capacity per EN 60898, 400 V AC, 4 modular width units.","salesMarkdown":"## What this MCB is and what the ratings mean for fit The 5SL6620-7: The 4-pole, 4-module-width (72 mm) footprint snaps onto standard DIN rail and fits any mounting position. Depth is 76 mm, installation depth 70 mm — the extra 6 mm is the handle throw, so allow clearance in the enclosure door. Rated for overvoltage category III and pollution degree 2, which is the standard for fixed-installation distribution boards. IP20 with connected conductors means it's protected against finger contact but not against moisture — keep it inside a rated enclosure in wet locations. ## Panel integration and compliance notes Sealable design allows the installer to lock the handle in the OFF position with a padlock — useful for lockout/tagout on a final subcircuit without pulling the main disconnect. Halogen-free and silicon-free construction matters if the breaker lives in a clean room or a zone where outgassing during a fault could contaminate optics or electronics. Touch protection is built in; no separate finger-duct shield needed on the line side. Mechanical service life is 10 000 switching cycles typical — fine for branch-circuit protection where the breaker operates a few times a year, not for frequent switching duty (use a contactor for that).","metaTitle":"Siemens 5SL6620-7 SENTRON MCB, 3P+N, C-curve, 20A, 6kA","metaDescription":"Siemens 5SL6620-7 SENTRON miniature circuit breaker, 3P+N, 20 A, C characteristic, 6 kA breaking capacity per EN 60898. Active production, sourced to order.","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":"5SL6620-7","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 6kA, 3+N-pole, C, 20 A","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"3P+N","Number Of Poles":"4","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","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","at 30 °C / rated value":"20 A","at 40 °C / rated value":"18.79 A","at 45 °C / rated value":"18.6 A","at 55 °C / rated value":"16.8 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","Type Of Voltage / Of The Operating Voltage":"AC","with multi-phase operation / at AC / maximum":"440 V","Product Component / Neutral Conductor Switching":"Yes","with multi-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/30f37223df89538091043217ac1e42cf.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=225620&mlfb=5SL6620-7"},"ai":{"faq":[{"question":"What is the closest functional second-source to the 5SL6620-7?","answer":"The 5SL3340-7CC is the closest sibling: same poles (4), same C curve, same 6 kA breaking capacity. The difference is 3P+N (switched neutral, no protection) vs 4P (all poles protected). Choose based on whether your neutral needs overcurrent protection."},{"question":"What is the depth and width of the 5SL6620-7?","answer":"Depth is 76 mm, width is 72 mm, which corresponds to 4 modular width units. Installation depth is 70 mm."},{"question":"Will the 5SL6620-7 drop into a panel specified around the 5SL3340-7CC without rewiring?","answer":"Yes, both are 4-pole, 4-module-width (72 mm) DIN-rail devices with the same 6 kA breaking capacity and C curve. The only wiring difference: the 5SL6620-7 switches the neutral but does not protect it, so if the original design used the neutral as a protected pole, you must verify the neutral conductor is sized for fault current — otherwise the swap is mechanical and electrical drop-in."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL6620-7","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/5SL6620-7 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}}