{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL6220-7MB","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL6220-7MB","canonicalUrl":"https://aoctrl.com/siemens/5SL6220-7MB","factsUrl":"https://aoctrl.com/api/mcp/products/5SL6220-7MB","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL6220-7MB, miniature circuit breaker, 2-pole, C-curve, 20 A rated current, 6 kA breaking capacity at 400 V AC per EN 60898, 2 MW units wide.","salesMarkdown":"The Siemens SENTRON 5SL6220-7MB is a 2-pole miniature circuit breaker (MCB) with a C tripping characteristic, rated at 20 A, and a breaking capacity of 6 kA per EN 60898 at 400 V AC. It sits in the SENTRON family, designed for residential and infrastructure branch-circuit protection. The 70 mm installation depth into the panel leaves clearance for wiring and busbar connections. Rated for any mounting position, it's IP20 with conductors connected — standard for enclosed distribution boards. For a residential or light commercial distribution board with a typical transformer impedance, this is adequate for most final subcircuits. The C-curve holds through the 5–10x In window, so a 20 A breaker won't nuisance-trip on a 100 A inrush for a few milliseconds — that's the design intent for general-purpose and small motor loads. Single-phase operation is rated at 250 V AC. DC operation is limited to 72 V maximum. The 2 MW width (36 mm) means it occupies two adjacent 18 mm slots — check your distribution board's fill factor before laying out the row. The 70 mm installation depth allows clearance for rear-connected busbars and wiring ducts. Supplementary devices (shunt trips, auxiliary contacts, alarm switches) can be installed on the right side via the product extension interface. Degree of pollution 2 and overvoltage category III ratings confirm it's suitable for fixed-installation distribution boards where transient overvoltages from the mains are expected — typical for building electrical infrastructure.","metaTitle":"Siemens 5SL6220-7MB SENTRON MCB, 2P C20, 6kA, 400V","metaDescription":"Siemens SENTRON 5SL6220-7MB miniature circuit breaker, 2-pole, C-curve, 20 A, 6 kA breaking capacity per EN 60898 at 400 V AC. Active production, available to order.","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":"5SL6220-7MB","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 6kA, 2-pole, C, 20 A","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"2P","Number Of Poles":"2","lifecycle_stage":"current","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"2","Product Designation":"Miniature circuit breaker","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Energy Limitation Class":"3","Suitability For Operation":"Residential buildings/infrastructure","at DC rated value maximum":"72 V","Number Of Modular Width Units":"2","Tripping Characteristic Class":"C","supply voltage at AC rated value":"400 V","according to EN 60898 rated value":"6 kA","Type Of Voltage Of The Operating Voltage":"AC","with multi-phase operation at AC maximum":"440 V","Value Range Of The Supply Voltage Frequency":"50/60 Hz","with multi-phase operation at AC rated value":"440 V","with single-phase operation at AC rated value":"250 V","Mechanical Service Life (Operating Cycles) Typical":"10 000","Product Extension Installable Supplementary Devices":"Yes","power loss [W] for rated value of the current at AC in hot operating state per pole":"1.7 W"}},"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=148834&mlfb=5SL6220-7MB"},"ai":{"faq":[{"question":"What is the breaking capacity of the 5SL6220-7MB?","answer":"The breaking capacity is 6 kA at 400 V AC per EN 60898, and also 6 kA per IEC 60947-2 for the single-pole variant; the 2-pole unit shares the same 6 kA rating."},{"question":"How does the 5SL6220-7MB compare to the 5SL6120-7?","answer":"The 5SL6120-7 is a single-pole (1P) version of the same SENTRON C-curve MCB, also rated 20 A and 6 kA at 400 V. The key difference is pole count: the 5SL6220-7MB switches both line and neutral (2P), while the 5SL6120-7 switches only one pole. The 5SL6220-7MB occupies 2 MW (36 mm) versus 1 MW (18 mm) for the 1P unit. If your panel layout was specified around the 5SL6120-7, swapping to the 2-pole version requires two slots instead of one — check your DIN rail space and busbar arrangement before substituting."},{"question":"Where can I buy the 5SL6220-7MB?","answer":"The 5SL6220-7MB is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL6220-7MB","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/5SL6220-7MB 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}}