{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL6304-7BB","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL6304-7BB","canonicalUrl":"https://aoctrl.com/siemens/5SL6304-7BB","factsUrl":"https://aoctrl.com/api/mcp/products/5SL6304-7BB","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL6304-7BB, miniature circuit breaker, 3-pole, C-curve, 4 A, 400 V AC, 6 kA per EN 60898, 3 MW units, IP20.","salesMarkdown":"Mounting position is unrestricted, and the IP20 rating (with conductors connected) is typical for enclosed distribution boards; no special sealing needed for dry indoor environments. Rated 400 V AC between phases, with a maximum operating voltage of 440 V AC. The 50/60 Hz frequency range covers both 50 Hz European and 60 Hz North American installations. DC rating tops out at 72 V — not a primary DC breaker, but usable on low-voltage DC control circuits if needed. Power loss per pole is 1.2 W at rated current in hot operating state — 3.6 W total for the 3-pole assembly. In a densely populated distribution board, that heat adds up; ensure adequate ventilation or derating if ambient exceeds 40 °C. The -40 °C to +75 °C storage range is generous, but operating temperature is bounded by the standard derating curves for EN 60898.","metaTitle":"Siemens 5SL6304-7BB SENTRON MCB, 3P C 4A 6kA","metaDescription":"Siemens SENTRON 5SL6304-7BB miniature circuit breaker, 3-pole, C-curve, 4 A, 400 V AC, 6 kA breaking capacity per EN 60898. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["3-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"54 mm","title":"5SL6304-7BB","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 6kA, 3-pole C, 4A Version Italy","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","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":"3","Tripping Characteristic Class":"C","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":"1.2 W"}},"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=400025&mlfb=5SL6304-7BB"},"ai":{"faq":[{"question":"What is the breaking capacity of the 5SL6304-7BB?","answer":"6 kA per EN 60898 and 6 kA per IEC 60947-2 at 400 V AC."},{"question":"What is the difference between the 5SL6304-7BB and the 5SL4363-7?","answer":"The 5SL4363-7 is a 3-pole C-curve 63 A MCB with a 10 kA breaking capacity, compared to the 4 A / 6 kA rating of the 5SL6304-7BB. Both share the same physical footprint (54 mm wide, 76 mm deep, 90 mm tall) and mounting, so a panel designed for the 5SL4363-7 can accept the 5SL6304-7BB without rewiring — but the lower ampacity and breaking capacity must be verified against the circuit's fault current and load."},{"question":"Where can I buy the 5SL6304-7BB?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. 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/5SL6304-7BB","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/5SL6304-7BB 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}}