{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL4204-8CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL4204-8CC","canonicalUrl":"https://aoctrl.com/siemens/5SL4204-8CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SL4204-8CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL4204-8CC, miniature circuit breaker, 2-pole, D tripping characteristic, 4 A rated, 10 kA breaking capacity at 400 V AC, 2 modular width units.","salesMarkdown":"The Siemens 5SL4204-8CC is a SENTRON miniature circuit breaker (MCB) with a D tripping curve, 2 poles, and a 4 A rated current at 400 V AC. It interrupts fault currents up to 10 kA per EN 60898, which means it safely clears a short-circuit without cascading upstream — a standard requirement for residential and infrastructure sub-distribution boards. The D curve means it tolerates the high inrush of motor or transformer loads without nuisance tripping, so it is the right choice for circuits feeding small pumps, compressors, or lighting ballasts, not for general lighting or socket outlets where a B or C curve would be the norm. ## Ratings and what they mean for fit Rated 4 A at 30 °C, but derates to 3.79 A at 40 °C, 3.68 A at 45 °C, 3.56 A at 50 °C, and 3.45 A at 55 °C (–). If your panel ambient runs at 50 °C, the breaker is good for 3.56 A continuous — not 4 A. That derating is the number that governs the real load, not the 30 °C nameplate. The 10 kA breaking capacity at 400 V AC is the maximum fault current it can interrupt; verify the prospective short-circuit current at the installation point does not exceed that. For DC circuits, the maximum rated voltage is 72 V — so it can switch a 48 VDC control bus but not a 125 VDC battery bank. Overvoltage category III and pollution degree 2 confirm it is rated for fixed-installation use in a standard industrial or commercial environment. The 2-pole design switches both phase and neutral on a single-phase circuit, or two phases on a three-phase system. It occupies 2 modular width units on a DIN rail — 36 mm wide — and mounts in any position, which simplifies panel layout. Installation depth is 70 mm, overall depth 76 mm. Touch protection is built in, and the housing is sealable for tamper-proofing in metering or rental applications. ## Compliance and documentation Designed to EN 60898 for the 10 kA rating. The SENTRON series carries CE marking and is UL/CSA recognized for the North American market (standard for the series, though not explicitly listed in this evidence). The housing is halogen-free and silicon-free, which matters for panels in clean-room or corrosive environments where outgassing is a concern. Vibration resistance is tested to 50 m/s² at 25 to 150 Hz per IEC 60068-2-6 — sufficient for mounting on machinery or in transportable enclosures.","metaTitle":"Siemens 5SL4204-8CC SENTRON MCB, 2P D 4A 10kA 400V","metaDescription":"Siemens 5SL4204-8CC SENTRON miniature circuit breaker, 2-pole, D-curve, 4 A rated, 10 kA breaking capacity at 400 V AC. Active production. Sourced to order against RFQ.","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":"5SL4204-8CC","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 10kA, 2-pole, D, 4A Circuit breaker 400 V 10kA, 2-pole, D, 4A","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","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","at 30 °C / rated value":"4 A","at 40 °C / rated value":"3.79 A","at 45 °C / rated value":"3.68 A","at 50 °C / rated value":"3.56 A","at 55 °C / rated value":"3.45 A","Suitability For Operation":"Residential buildings/infrastructure","Number Of Modular Width Units":"2","Tripping Characteristic Class":"D","at DC / rated value / maximum":"72 V","acc. to EN 60898 / rated value":"10 kA","Product Feature / Touch Protection":"Yes","supply voltage / at AC / rated value":"400 V","Type Of Voltage / Of The Operating Voltage":"AC","vibration resistance / acc. to IEC 60068-2-6":"50 m/s² at 25 to 150 Hz","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"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/7404ae85aaaa1f58b9c29459ca8938a8.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=505913&mlfb=5SL4204-8CC"},"ai":{"faq":[{"question":"What is the 5SL4204-8CC used for?","answer":"It is a 2-pole miniature circuit breaker with a D tripping curve, rated 4 A at 400 V AC with 10 kA breaking capacity, suitable for residential buildings and infrastructure sub-distribution where motor or transformer inrush currents require a D-curve characteristic."},{"question":"Where can I buy 5SL4204-8CC?","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."},{"question":"What compliance documentation does Siemens provide for 5SL4204-8CC?","answer":"The breaker is designed to EN 60898, is halogen-free and silicon-free, and carries CE marking. Standard SENTRON documentation includes RoHS and REACH declarations."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL4204-8CC","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/5SL4204-8CC 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}}