{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL6140-7RC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL6140-7RC","canonicalUrl":"https://aoctrl.com/siemens/5SL6140-7RC","factsUrl":"https://aoctrl.com/api/mcp/products/5SL6140-7RC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL6140-7RC, miniature circuit breaker, 1-pole, 40 A, C-curve, 7.5 kA breaking capacity per EN 60898, 415 V AC, IP20.","salesMarkdown":"## What this MCB is and what it does The Siemens 5SL6140-7RC is a SENTRON miniature circuit breaker, 1-pole, rated 40 A at AC with a C-curve trip characteristic. It breaks fault currents up to 7.5 kA per EN 60898 at 415 V AC — that's the standard for residential and light commercial distribution boards. The C-curve means it trips between 5 and 10 times rated current, so it handles moderate inrush from motorized loads like pumps or small compressors without nuisance tripping on start-up. ## Physical fit and panel integration One modular-width unit (18 mm) on standard DIN rail. Depth is 76 mm, installation depth 70 mm — that's the dimension you need for enclosure depth clearance. IP20 with connected conductors, so it's intended for enclosed distribution boards, not wet or dusty environments. Mounting position is any, which helps when you're packing a tight panel layout. ## Environmental and compliance notes Rated for ambient temperatures from -40 °C to 75 °C, so it works in unheated utility rooms or outdoor-adjacent enclosures. Halogen-free and silicon-free construction — relevant if you're specifying for environments where outgassing matters, like clean rooms or certain industrial processes. Sealable design allows locking the toggle position to prevent unauthorized reset.","metaTitle":"Siemens 5SL6140-7RC SENTRON MCB, 40 A, 1-Pole, C-Curve, 7.5","metaDescription":"Siemens 5SL6140-7RC SENTRON miniature circuit breaker, 40 A, 1-pole, C-curve, 7.5 kA per EN 60898. Active production. Sourced to order. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"18 mm","title":"5SL6140-7RC","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"MCB 40 A 1-pole B characteristic 7.5 kA","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"1P","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","acc. to IEC 81346-2":"F","at AC / rated value":"40 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"No","at 30 °C / rated value":"40 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":"7.5 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/0d7ea632b0ba87061cb26e17d8bbc61f.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=342390&mlfb=5SL6140-7RC"},"ai":{"faq":[{"question":"Where can I buy the 5SL6140-7RC and get a price?","answer":"The 5SL6140-7RC is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the 5SL6140-7RC's depth?","answer":"The depth is 76 mm, with an installation depth of 70 mm."},{"question":"What is the 5SL6140-7RC's width?","answer":"The width is 18 mm, which is one modular-width unit on standard DIN rail."},{"question":"Will the 5SL6140-7RC drop into a panel specified around the 5SY3025-7KL?","answer":"Both are SENTRON 1-pole MCBs with the same 18 mm width, 76 mm depth, and DIN-rail mounting, so the 5SL6140-7RC will physically fit the same panel slot. However, the 5SL6140-7RC is rated 40 A with a 7.5 kA breaking capacity, while the 5SY3025-7KL is 25 A with 4.5 kA — verify the circuit's fault current and load requirements before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL6140-7RC","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/5SL6140-7RC 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}}