{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL6306-6MB","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL6306-6MB","canonicalUrl":"https://aoctrl.com/siemens/5SL6306-6MB","factsUrl":"https://aoctrl.com/api/mcp/products/5SL6306-6MB","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL6306-6MB miniature circuit breaker, 3-pole, B characteristic, 6 A rated, 6 kA breaking capacity per EN 60898 / IEC 60947-2.","salesMarkdown":"The Siemens SENTRON 5SL6306-6MB is a 3-pole miniature circuit breaker with B tripping characteristic, rated 6 A at AC and breaking 6 kA per EN 60898 and IEC 60947-2. ## Ratings that matter for the panel Rated 6 A at 30 °C ambient, the 5SL6306-6MB derates to 5.7 A at 40 °C and 5.52 A at 45 °C — a 5% and 8% drop respectively. If your enclosure runs hot near a kiln or furnace, size the load circuit accordingly. Multi-phase operation is rated at 400 V AC nominal, with a maximum of 440 V AC. The DC rating tops out at 72 V — this is an AC breaker; don't spec it for a DC bus without checking the voltage curve. Mechanical service life is 20 000 switching cycles typical. Dimensions: 54 mm wide (3 MW), 90 mm high, 76 mm deep, with an installation depth of 70 mm behind the panel face. Mounts in any position. Halogen-free and silicon-free construction, sealable, with touch protection on the terminals.","metaTitle":"5SL6306-6MB SENTRON MCB, 3P, B Curve, 6 A, 6 kA","metaDescription":"Siemens SENTRON 5SL6306-6MB miniature circuit breaker, 3-pole, B characteristic, 6 A rated, 6 kA breaking capacity per EN 60898 / IEC 60947-2. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["3-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"54 mm","title":"5SL6306-6MB","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breakers Icn: 6 kA, 3P, B char., In: 6 A","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"3P","Number Of Poles":"3","lifecycle_stage":"current","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"2","Product Designation":"Miniature circuit breaker","at AC / rated value":"6 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Energy Limitation Class":"3","according to EN 61346-2":"F","at 30 °C / rated value":"6 A","at 40 °C / rated value":"5.7 A","at 45 °C / rated value":"5.52 A","according to IEC 81346-2":"F","Suitability For Operation":"Residential buildings/infrastructure","Number Of Modular Width Units":"3","Tripping Characteristic Class":"B","at DC / rated value / maximum":"72 V","Product Feature / Touch Protection":"Yes","according to EN 60898 / rated value":"6 kA","supply voltage / at AC / rated value":"400 V","according to IEC 60947-2 / rated value":"6 kA","Type Of Voltage / Of The Operating Voltage":"AC","with multi-phase operation / at AC / maximum":"440 V","Product Component / Neutral Conductor Switching":"No","with multi-phase operation / at AC / rated value":"440 V","Mechanical Service Life (Switching Cycles) / Typical":"20 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/e28fb75413fb54314f53a14e2d28f4be.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=882901&mlfb=5SL6306-6MB"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SL6306-6MB?","answer":"6 kA per both EN 60898 and IEC 60947-2, at 400 V AC."},{"question":"Where can I buy 5SL6306-6MB?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the difference between 5SL6306-6MB and 5SL4363-7?","answer":"Both are 3-pole SENTRON MCBs, but the 5SL4363-7 carries a C characteristic (trips at 5–10× In) versus the B curve (3–5× In) on this part. The C curve suits moderate motor and transformer inrush; the B curve is for resistive loads and general wiring. Panel footprint and breaking capacity may differ — verify the specific ratings before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL6306-6MB","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/5SL6306-6MB 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}}