{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL3204-7MB","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL3204-7MB","canonicalUrl":"https://aoctrl.com/siemens/5SL3204-7MB","factsUrl":"https://aoctrl.com/api/mcp/products/5SL3204-7MB","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL3204-7MB miniature circuit breaker, 2-pole, C-curve, 4 A, 4.5 kA breaking capacity per EN 60898 at 400 V AC, 2 MW units wide.","salesMarkdown":"The Siemens 5SL3204-7MB is a SENTRON miniature circuit breaker (MCB) — a 2-pole, C-curve device rated 4 A with a 4.5 kA breaking capacity at 400 V AC per EN 60898. The 4 A rating (at 30 °C, per) governs the continuous load current — wire this into a circuit drawing over 3.2 A continuous and the thermal trip will eventually open. The C-curve means magnetic trip occurs at 5–10× In (20–40 A), so it passes brief motor-start surges but clears a hard short fast. Breaking capacity of 4.5 kA at 400 V AC (per EN 60898) means it can safely interrupt a fault current up to 4.5 kA without welding contacts or rupturing the case. For installations where the prospective short-circuit current exceeds that, step up to the 5SL4 series (10 kA) or add a current-limiting upstream device. Two poles, two modular-width units (36 mm wide, per and). That's the DIN-rail footprint: it occupies two adjacent 18 mm slots in a distribution board. Depth is 76 mm with 70 mm installation depth — verify gland-plate clearance if the enclosure is shallow. Rated for overvoltage category III (, degree of pollution 2), which covers fixed-installation distribution boards downstream of the main service entrance.","metaTitle":"Siemens 5SL3204-7MB SENTRON MCB, 2P C 4A 4.5kA","metaDescription":"Siemens SENTRON 5SL3204-7MB miniature circuit breaker, 2-pole, C-curve, 4 A, 4.5 kA breaking capacity per EN 60898 at 400 V AC. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"36 mm","title":"5SL3204-7MB","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 4.5 kA, 2-pole, C, 4A","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"2P","Number Of Poles":"2","lifecycle_stage":"current","Mounting Position":"any","at AC rated value":"4 A","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","at 30 °C rated value":"4 A","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":"C","supply voltage at AC rated value":"400 V","according to EN 60898 rated value":"4.5 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":"250 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":"1.3 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/36cfdd6a3eadd9137c1a26a837bec045.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=418647&mlfb=5SL3204-7MB"},"ai":{"faq":[{"question":"Where can I buy 5SL3204-7MB and get a price?","answer":"Sourced to order through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time, not from a static listing."},{"question":"What is the difference between 5SL3204-7MB and 5SL4363-7?","answer":"The 5SL4363-7 is a 3-pole, 63 A, C-curve MCB with a 10 kA breaking capacity (per EN 60898 and IEC 60947-2). The 5SL3204-7MB is 2-pole, 4 A, 4.5 kA. They share the same 76 mm depth and 90 mm height, but the 5SL4363-7 is 54 mm wide (3 MW) vs 36 mm (2 MW) for the 4 A unit. They are not drop-in interchangeable — the pole count, rating, and breaking capacity are different."},{"question":"What compliance documentation does Siemens provide for 5SL3204-7MB?","answer":"The 5SL3204-7MB is certified to EN 60898 (breaking capacity of 4.5 kA at 400 V AC). It is halogen-free and silicon-free. Standard Siemens documentation includes CE declaration of conformity and, where applicable, UKCA. RoHS and REACH compliance data is available through Siemens Industry Online Support."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL3204-7MB","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/5SL3204-7MB 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}}