{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL4205-7RC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL4205-7RC","canonicalUrl":"https://aoctrl.com/siemens/5SL4205-7RC","factsUrl":"https://aoctrl.com/api/mcp/products/5SL4205-7RC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL4205-7RC miniature circuit breaker, 2-pole, C characteristic, 0.5 A rated current, 10 kA breaking capacity at 415 V AC, 1 MW wide.","salesMarkdown":"## What it is and what it does The Siemens 5SL4205-7RC is a SENTRON miniature circuit breaker — 2-pole, C-curve, rated 0.5 A at 415 V AC with a 10 kA breaking capacity per EN 60898. That C characteristic means it trips between 5 and 10 times rated current, so it's sized for general-purpose branch circuits with moderate inrush — think small lighting groups, control transformers, or resistive loads where you don't want nuisance trips from a motor start but still need fast fault clearing. The 10 kA SCCR at 415 V AC means it safely interrupts a hard fault at that level without welding contacts or cascading upstream. ## Panel fit and mounting Single modular-width unit (18 mm) on standard DIN rail. Depth is 76 mm, height 90 mm — it sits flush with adjacent SENTRON breakers and accessories. Mounting position is unrestricted, so it works in vertical, horizontal, or upside-down busbar arrangements. IP20 with connected conductors; touch protection built in. Rated for pollution degree 2 and overvoltage category III, which is the usual spec for fixed-installation distribution boards inside a building envelope. ## Environmental and compliance Halogen-free and silicon-free construction — relevant for high-reliability or clean-room installations where outgassing matters. Operating temperature range from -40 °C to 75 °C, so it's fine in unheated enclosures or near roof-level gear. Sealable (can be locked out with a standard padlock hasp). Suitability listed for residential buildings and infrastructure — that's the intended application domain per the manufacturer.","metaTitle":"Siemens 5SL4205-7RC SENTRON MCB, 2P C 0.5A 10kA","metaDescription":"Siemens 5SL4205-7RC SENTRON miniature circuit breaker, 2-pole, C-curve, 0.5 A, 10 kA at 415 V AC. Active production. IP20. Quoted to order. Request 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":"18 mm","title":"5SL4205-7RC","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 415 V 10kA, 2-pole, C, 0.5A","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":"0.5 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":"0.5 A","Suitability For Operation":"Residential buildings/infrastructure","Number Of Modular Width Units":"1","Tripping Characteristic Class":"C","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":"415 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/7404ae85aaaa1f58b9c29459ca8938a8.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=75334&mlfb=5SL4205-7RC"},"ai":{"faq":[{"question":"Where can I buy 5SL4205-7RC and how do I get a price?","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 number."},{"question":"Will 5SL4205-7RC drop into a panel that was specified around 5SL4120-7CC without rewiring?","answer":"Yes — both share the same 18 mm width, 76 mm depth, and DIN-rail mounting, so the 2-pole 5SL4205-7RC fits the same footprint. The only difference is the additional pole connection; the busbar and DIN rail arrangement don't need rework."},{"question":"What is the rated breaking capacity of 5SL4205-7RC?","answer":"10 kA at 415 V AC per EN 60898. That's the standard household/commercial fault level; adequate for most final distribution boards downstream of a larger upstream MCCB."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL4205-7RC","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/5SL4205-7RC 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}}