{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY6304-6CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY6304-6CC","canonicalUrl":"https://aoctrl.com/siemens/5SY6304-6CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SY6304-6CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY6304-6CC, 3-pole miniature circuit breaker, B characteristic, 4 A rated current, 6 kA breaking capacity at 400 V AC, 50/60 Hz.","salesMarkdown":"The Siemens 5SY6304-6CC is a SENTRON miniature circuit breaker — 3-pole, B-trip characteristic, rated 4 A at 400 V AC, 50/60 Hz. IP20 with connected conductors — finger-safe terminals but not washdown-rated. Combined top and bottom terminals simplify daisy-chaining busbars. ## Deployment context — panel integration and environmental range The 5SY6304-6CC covers a wide ambient span: -40 °C to 75 °C, with humidity derating above 55 °C (95% RH to 55 °C, then 55% to 70 °C, 35% to 75 °C). That makes it usable in cold storage, outdoor cabinets, or near ovens — but the humidity curve means you don't seal the enclosure tight in high-temp, high-moisture zones without a breather. Vibration resistance per IEC 60068-2-6: ±1 mm at 5–25 Hz, 50 m/s² at 25–150 Hz. That's enough for general industrial machinery but not heavy rotating plant — if the panel mounts on a compressor skid, verify the vibration profile against that spec.","metaTitle":"Siemens 5SY6304-6CC SENTRON MCB, 3P B-Char 4A 6kA","metaDescription":"Siemens 5SY6304-6CC SENTRON miniature circuit breaker, 3-pole, B-curve, 4 A rated current, 6 kA breaking capacity per EN 60898, 400 V AC. Active production. Quoted 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":"5SY6304-6CC","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 6kA, 3-pole, B, 4 A","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"3","Type Of Voltage":"AC","lifecycle_stage":"current","Fastening Method":"Quick assembly system","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"3","Product Designation":"Miniature circuit breaker","acc. to IEC 81346-2":"F","at AC / rated value":"400 V","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","Number Of Poles / Note":"3P","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","Number Of Modular Width Units":"3","Tripping Characteristic Class":"B","acc. to EN 60898 / rated value":"6 kA","Position / Of Power Supply Cord":"Any","Product Feature / Touch Protection":"Yes","Supply Voltage Frequency / Rated Value":"50/60 Hz","Influence Of The Surrounding Temperature":"max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C","operational current / at AC / rated value":"4 A","vibration resistance / acc. to IEC 60068-2-6":"±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz","Product Function / Neutral Conductor Switching":"No","with multi-phase operation / at AC / rated value":"440 V","operating voltage / at DC / rated value / maximum":"72 V","with single-phase operation / at AC / rated value":"440 V","Mechanical Service Life (Switching Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/e1eed1502d1757574f9ef53c0335a065.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=414275&mlfb=5SY6304-6CC"},"ai":{"faq":[{"question":"What is the breaking capacity of the 5SY6304-6CC?","answer":"Rated 6 kA per EN 60898 at 400 V AC. That is the short-circuit interrupting rating at the terminals — match it to the available fault current at your panel."},{"question":"Where can I buy the 5SY6304-6CC and get current pricing?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"Does the 5SY6304-6CC drop into a panel specified for the 5SY4140-7?","answer":"Both are 3-pole SENTRON MCBs on the same DIN-rail footprint, so the mechanical fit is the same. The 5SY6304-6CC carries a B-curve at 4 A / 6 kA; the 5SY4140-7 is a different rating and characteristic. Verify the branch-circuit protection requirements before substituting — the physical swap is straightforward, but the electrical coordination may differ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY6304-6CC","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/5SY6304-6CC 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}}