{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL5105-7RC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL5105-7RC","canonicalUrl":"https://aoctrl.com/siemens/5SL5105-7RC","factsUrl":"https://aoctrl.com/api/mcp/products/5SL5105-7RC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL5105-7RC miniature circuit breaker, 1-pole, C-curve, 0.5 A rated, 220 V DC, 10 kA breaking capacity, IP20.","salesMarkdown":"It is designed for 220 V DC circuits and offers a 10 kA breaking capacity. This is a current-production part, still actively manufactured. The C-curve means it trips between 5 and 10 times rated current (2.5 to 5 A for this 0.5 A unit), suited for protecting circuits with moderate inrush, like lighting or small control transformers. The 10 kA DC breaking capacity gives it the interrupting capability for most low-voltage DC distribution panels. ## DC ratings and deployment Rated for 220 V DC maximum, this breaker is intended for DC branch circuit protection in residential or infrastructure applications. Touch protection is built in on the line side terminals. For a panel originally specified with a different SENTRON 1-pole C-curve MCB (like the 5SL6120-7, which is an AC-rated unit with 72 V DC max), the 5SL5105-7RC will not drop in as a functional substitute for AC circuits — the DC-only rating limits its use. Verify the circuit voltage type before cross-referencing.","metaTitle":"Siemens 5SL5105-7RC SENTRON MCB, 1-pole C 0.5 A, 220 V DC","metaDescription":"Siemens SENTRON 5SL5105-7RC miniature circuit breaker, 1-pole, C-curve 0.5 A, 220 V DC, 10 kA, IP20. Current production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"18 mm","title":"5SL5105-7RC","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit-breaker 220 V DC DC 10 kA 1-pole C 0.5","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"1","lifecycle_stage":"current","Mounting Position":"any","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","Suitability For Operation":"Residential buildings/infrastructure","Number Of Modular Width Units":"1","Tripping Characteristic Class":"C","at DC / rated value / maximum":"220 V","Product Feature / Touch Protection":"Yes","Product Function / Neutral Conductor Switching":"No"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/3e6c3e27d56100202dd36c5f7b84df3b.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=654108&mlfb=5SL5105-7RC"},"ai":{"faq":[{"question":"What is 5SL5105-7RC's listed depth (76 mm) on this component line?","answer":"The total depth from DIN rail base to the front of the toggle is 76 mm. The installation depth (depth behind the panel face) is 70 mm."},{"question":"What is 5SL5105-7RC's listed width (18 mm) on this component line?","answer":"Width is 18 mm, which corresponds to one modular unit (1 MW) on a standard DIN rail. This matches the footprint of most single-pole MCBs in a distribution board."},{"question":"Will 5SL5105-7RC drop into a panel that was specified around 5SL6120-7 without rewiring?","answer":"Physically yes — same 18 mm width, 76 mm depth, and DIN-rail mounting. Electrically no: the 5SL6120-7 is an AC-rated breaker (250/440 V AC, 6 kA) with only 72 V DC capability, while the 5SL5105-7RC is a 220 V DC-only breaker. Do not substitute without verifying the circuit voltage type."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL5105-7RC","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/5SL5105-7RC 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}}