{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL3304-7MB","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL3304-7MB","canonicalUrl":"https://aoctrl.com/siemens/5SL3304-7MB","factsUrl":"https://aoctrl.com/api/mcp/products/5SL3304-7MB","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL3304-7MB miniature circuit breaker, 3-pole, C-curve, 4 A, 4.5 kA breaking capacity at 400 V AC per EN 60898.","salesMarkdown":"## Siemens SENTRON 5SL3304-7MB — 3-pole MCB, C-curve, 4 A The Siemens 5SL3304-7MB is a 3-pole miniature circuit breaker from the SENTRON range, rated 4 A with a C tripping characteristic and a 4.5 kA breaking capacity at 400 V AC per EN 60898. This is the part you reach for when protecting a 400 V three-phase branch circuit — lighting, small motor feeders, or control power transformers — where the inrush is moderate and the fault current available at the panel doesn't exceed 4.5 kA. For a 400 V line with a 4.5 kA prospective short-circuit current, this breaker sits right at the rating — no headroom for a larger transformer or a higher-SCCR panel upgrade. ## Footprint and panel integration Mounting position is unrestricted — vertical, horizontal, or upside-down on the rail — which simplifies layout in a crowded sub-distribution board. ## Environmental range and materials","metaTitle":"Siemens 5SL3304-7MB SENTRON MCB, 3P C 4A 4.5kA","metaDescription":"Siemens SENTRON 5SL3304-7MB miniature circuit breaker, 3-pole, 4 A, C-curve, 4.5 kA breaking capacity per EN 60898. Active production. Quoted 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":"5SL3304-7MB","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 4.5 kA, 3-pole, C, 4A","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","acc. to IEC 81346-2":"F","at AC / rated value":"4 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","at 30 °C / rated value":"4 A","Suitability For Operation":"Residential buildings/infrastructure","Number Of Modular Width Units":"3","Tripping Characteristic Class":"C","at DC / rated value / maximum":"72 V","acc. to EN 60898 / rated value":"4.5 kA","Product Feature / Touch Protection":"Yes","supply voltage / at AC / rated value":"400 V","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","with single-phase operation / at AC / rated value":"250 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/ba6b045541d906b2b8b1e79bc2e9dbac.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=46140&mlfb=5SL3304-7MB"},"ai":{"faq":[{"question":"What is the breaking capacity of the 5SL3304-7MB?","answer":"4.5 kA at 400 V AC per EN 60898. That is the standard breaking capacity for the SENTRON 5SL3 series — adequate for most residential and light commercial sub-distribution boards, but verify the prospective fault current at the installation point."},{"question":"Where can I buy the 5SL3304-7MB?","answer":"Sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commitment."},{"question":"Will the 5SL3304-7MB drop into a panel designed for the 5SL4120-7CC?","answer":"No — the 5SL4120-7CC is a 1-pole, 1-module-width breaker (18 mm), while the 5SL3304-7MB is 3-pole, 3-module-width (54 mm). The footprint and pole count are different; the panel would need re-wiring and a different DIN-rail layout."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL3304-7MB","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/5SL3304-7MB 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}}