{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL6225-6BB","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL6225-6BB","canonicalUrl":"https://aoctrl.com/siemens/5SL6225-6BB","factsUrl":"https://aoctrl.com/api/mcp/products/5SL6225-6BB","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL6225-6BB, miniature circuit breaker, 2-pole, B characteristic, 25 A, 6 kA breaking capacity per EN 60898, 400 V AC, 2 modular width units.","salesMarkdown":"The 6 kA breaking capacity per EN 60898 (and IEC 60947-2) tells you it can safely interrupt a fault up to that level at 400 V AC; if your available fault current on the secondary side of the transformer is higher, you need to coordinate upstream or step up to a 10 kA rated unit. At 25 A and 400 V AC, each pole dissipates about 2.7 W in hot operating state — that's the heat you need to account for when filling a DIN-rail enclosure. Two poles means 5.4 W total inside the panel. The 2-module width (36 mm) is standard for a 2-pole MCB in this family, so it slots right into a pre-configured SENTRON distribution board without extra spacing. The part carries IP20 protection with connected conductors — typical for a panel-mounted breaker where the enclosure provides the real ingress barrier. It's sealable (you can lock the toggle with a padlock for lockout/tagout) and halogen-free / silicon-free, which matters for installations with sensitive contacts or where outgassing during a fault could cause corrosion. The 2-pole design switches both phase conductors simultaneously, which is what you need for a 2-wire single-phase or split-phase feed.","metaTitle":"Siemens 5SL6225-6BB SENTRON MCB, 2-Pole B-Curve 25A 6kA 400V","metaDescription":"Siemens 5SL6225-6BB SENTRON miniature circuit breaker, 2-pole, B characteristic, 25 A, 6 kA per EN 60898, 400 V AC. Current production, available to order against RFQ.","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":"5SL6225-6BB","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 6kA, 2-pole B, 25A Version Italy","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":"B","supply voltage at AC rated value":"400 V","according to EN 60898 rated value":"6 kA","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","Value Range Of The Supply Voltage Frequency":"50/60 Hz","with multi-phase operation at AC rated value":"440 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":"2.7 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=216120&mlfb=5SL6225-6BB"},"ai":{"faq":[{"question":"Where can I buy 5SL6225-6BB and how is it quoted?","answer":"We supply this part through independent distribution channels. Availability and current pricing are confirmed at quote time against an RFQ."},{"question":"What are the key specs for 5SL6225-6BB?","answer":"2-pole, B-curve, 25 A, 6 kA breaking capacity per EN 60898 and IEC 60947-2, rated 400 V AC, 50/60 Hz, 2 modular width units (36 mm)."},{"question":"Will 5SL6225-6BB drop into a panel specified for 5SL4363-7?","answer":"No — the 5SL4363-7 is a 3-pole C-curve breaker with 10 kA breaking capacity and a 54 mm width (3 modules). The 5SL6225-6BB is 2-pole, B-curve, 6 kA, 36 mm wide. The DIN-rail footprint is the same, but the pole count, curve, and breaking capacity are different; rewiring and possibly a panel redesign would be required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL6225-6BB","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/5SL6225-6BB 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}}