{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL1206-6MB","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL1206-6MB","canonicalUrl":"https://aoctrl.com/siemens/5SL1206-6MB","factsUrl":"https://aoctrl.com/api/mcp/products/5SL1206-6MB","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL1206-6MB, 2-pole miniature circuit breaker, B-curve, 6 A rated current, 3 kA breaking capacity per IEC 60947-2, 230/400 V AC, 36 mm width.","salesMarkdown":"It occupies 2 modular width units (36 mm) on a DIN rail and is designed for residential and infrastructure branch-circuit protection at 230/400 V AC, 50/60 Hz. The 6 A rating is the continuous thermal current; at 40 °C ambient the breaker carries its full 6 A without derating, though the 1.1 W power loss per pole at rated current means you should allow natural convection in a crowded enclosure. The 2-pole design switches both phase and neutral (or two phases in a 2-phase circuit), and the sealable toggle allows lockout/tagout for maintenance isolation. ## DIN-rail integration note","metaTitle":"Siemens 5SL1206-6MB SENTRON MCB, 2P B-Curve 6A 3kA","metaDescription":"Siemens 5SL1206-6MB SENTRON miniature circuit breaker, 2-pole, B-curve, 6A, 3kA breaking capacity per IEC 60947-2. 36mm wide, 76mm deep. Current production. Sourced to order. Reque","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"36 mm","title":"5SL1206-6MB","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Circuit breaker 230/400V 3kA, 2pole, B, 6A","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","Suitability For Operation":"Residential buildings/infrastructure","at DC rated value maximum":"72 V","Number Of Modular Width Units":"2","Tripping Characteristic Class":"B","supply voltage at AC rated value":"230 V","according to IEC 60947-2 rated value":"3 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":"253 V","Mechanical Service Life (Operating Cycles) Typical":"4 000","power loss [W] for rated value of the current at AC in hot operating state per pole":"1.1 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/9518ed75c4bf91d3a04f6bb35c764819.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1046719&mlfb=5SL1206-6MB"},"ai":{"faq":[{"question":"What is the depth and width of 5SL1206-6MB?","answer":"The depth is 76 mm and the width is 36 mm (2 modular width units). The installation depth behind the panel face is 70 mm."},{"question":"Will 5SL1206-6MB drop into a panel specified around 5SL4363-7 without rewiring?","answer":"No — the 5SL4363-7 is a 3-pole, C-curve breaker rated 63 A with a 10 kA breaking capacity, occupying 3 MW (54 mm). The 5SL1206-6MB is 2-pole, B-curve, 6 A, 3 kA, and 36 mm wide. The footprint, current rating, and trip characteristic are all different; a panel designed for the 5SL4363-7 would require rewiring and a different busbar arrangement."},{"question":"How do I get pricing and availability for 5SL1206-6MB?","answer":"The part is sourced and quoted to order against an RFQ through independent distribution. Submit a request for quote (RFQ) to confirm current pricing and availability — no stock count or lead-time number is published here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL1206-6MB","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/5SL1206-6MB 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}}