{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL6220-6MB","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL6220-6MB","canonicalUrl":"https://aoctrl.com/siemens/5SL6220-6MB","factsUrl":"https://aoctrl.com/api/mcp/products/5SL6220-6MB","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL6220-6MB miniature circuit breaker, 2-pole, B-curve, 20 A, 400 V AC, 6 kA per EN 60898, 2 MW units wide.","salesMarkdown":"## What it is and what it does The Siemens 5SL6220-6MB is a 2-pole miniature circuit breaker from the SENTRON 5SL series, rated 20 A at 400 V AC with a B tripping characteristic and a 6 kA breaking capacity per EN 60898. The B-curve means it trips between 3 and 5 times rated current — suited for resistive and general-purpose loads where inrush is moderate, not for motor starting or transformer primaries. Rated operational current holds at 20 A up to 30 °C ambient; above that, per standard thermal derating, the continuous load must be reduced. ## Voltage and breaking capacity Single-phase operation is rated at 250 V AC; multi-phase operation at 400 V AC, with a maximum of 440 V AC across the poles. The 6 kA breaking capacity per EN 60898 is the standard domestic and light-commercial fault level — adequate for most residential and infrastructure sub-distribution boards, but verify against the prospective short-circuit current at the installation point. DC rating is 72 V maximum — usable in some control circuits but not a primary DC breaker. ## Physical fit and panel integration Occupies 2 modular width units (36 mm) on a DIN rail. Depth is 76 mm, installation depth 70 mm. Mounting position is any — no derating for horizontal or inverted orientation. IP20 with connected conductors — suitable for enclosed distribution boards, not for wet or washdown environments. Sealable design allows locking in the OFF position for lockout/tagout procedures. ## Environmental and compliance notes Halogen-free and silicon-free construction — relevant for installations where outgassing or silicone contamination must be avoided (e.g., near sensitive optics or clean-room zones). Rated for ambient temperatures from -40 °C to 75 °C, covering most indoor and sheltered outdoor enclosures. Mechanical service life is 10,000 switching cycles typical.","metaTitle":"Siemens 5SL6220-6MB SENTRON MCB, 2P, B-Curve, 20 A, 6 kA","metaDescription":"Siemens 5SL6220-6MB SENTRON miniature circuit breaker, 2-pole, B characteristic, 20 A rated current, 6 kA breaking capacity per EN 60898. Active production. Sourced to order agains","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"36 mm","title":"5SL6220-6MB","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Rated Value":"50 Hz","description":"Miniature circuit breaker 400 V 6kA, 2-pole, B, 20 A","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"2","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","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Design Of The Product":"5SL miniature circuit breakers","Number Of Poles / Note":"2P","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"No","Suitability For Operation":"Residential buildings/infrastructure","Number Of Modular Width Units":"2","Tripping Characteristic Class":"B","at DC / rated value / maximum":"72 V","acc. to EN 60898 / rated value":"6 kA","Product Feature / Touch Protection":"Yes","supply voltage / at AC / rated value":"400 V","operational current / at AC / rated value":"20 A","with multi-phase operation / at AC / maximum":"440 V","operational current / at 30 °C / rated value":"20 A","Product Function / Neutral Conductor Switching":"No","with multi-phase operation / at AC / rated value":"440 V","with single-phase operation / at AC / rated value":"250 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/271a7262e60aa92c66d3dffe83109b41.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=183910&mlfb=5SL6220-6MB"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL6220-6MB","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/5SL6220-6MB 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}}