{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY6118-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY6118-7","canonicalUrl":"https://aoctrl.com/siemens/5SY6118-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SY6118-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY6118-7, 1-pole C-curve miniature circuit breaker, 15 A rated current, 6 kA (EN 60898) / 15 kA (IEC 60947-2) breaking capacity, 18 mm wide, IP20.","salesMarkdown":"It snaps onto a DIN rail — 18 mm wide, one modular unit — and mounts in any position, so panel layout is flexible. ## Breaking capacity — what it means for your panel The same 15 kA rating applies for DC circuits per IEC 60947-2, so it works on DC branches too. ## Thermal derating — don't oversize the bus The 15 A rating holds at 35 °C ambient. At 40 °C it derates to 14.28 A; at 50 °C to 13.53 A; at 55 °C to 13.12 A. If the panel runs hot — say, 50 °C inside a sealed enclosure — expect the breaker to carry about 10 % less than its nameplate. Plan the branch load accordingly.","metaTitle":"Siemens 5SY6118-7 SENTRON MCB, 1P C-15A, 6kA/15kA","metaDescription":"Siemens SENTRON 5SY6118-7 miniature circuit breaker, 1-pole C-curve 15 A, breaking capacity 6 kA (EN 60898) / 15 kA (IEC 60947-2). Quoted to order against RFQ.","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","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"1P","Number Of Poles":"1","lifecycle_stage":"current","Fastening Method":"Quick assembly system","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"3","Product Designation":"Miniature circuit breaker","acc. to IEC 81346-2":"F","at AC / rated value":"15 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","at 35 °C / rated value":"15 A","at 40 °C / rated value":"14.28 A","at 45 °C / rated value":"13.9 A","at 50 °C / rated value":"13.53 A","at 55 °C / rated value":"13.12 A","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","Number Of Modular Width Units":"1","Tripping Characteristic Class":"C","acc. to EN 60898 / rated value":"6 kA","Position / Of Power Supply Cord":"Any","acc. to IEC 60947-2 / rated value":"15 kA","Product Feature / Touch Protection":"Yes","Influence Of The Surrounding Temperature":"max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C","at DC / acc. to IEC 60947-2 / rated value":"15 kA","Type Of Voltage / Of The Operating Voltage":"AC","at AC / acc. to UL 1077 and CSA C22.2 No.235":"5 kA","vibration resistance / acc. to IEC 60068-2-6":"±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz","Product Component / Neutral Conductor Switching":"No","with multi-phase operation / at AC / rated value":"440 V","operating voltage / at DC / rated value / maximum":"72 V","with single-phase operation / at AC / rated value":"440 V","Mechanical Service Life (Switching Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/8af6fe772a37f4ae3af806c944999f5b.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=258667&mlfb=5SY6118-7","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY6118-7/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 5SY6118-7?","answer":"It 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 breaking capacity of the 5SY6118-7?","answer":"6 kA per EN 60898 and 15 kA per IEC 60947-2 for AC circuits; 15 kA for DC per IEC 60947-2."},{"question":"Does the 5SY6118-7 replace the 5SY7210-7CC?","answer":"No — this is a different current rating (15 A C-curve vs the 5SY7210-7CC's 10 A C-curve). They share the same SENTRON family and DIN-rail footprint, but the breaker size must match the branch circuit design; they are not drop-in substitutes without re-evaluating the load."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY6118-7","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/5SY6118-7 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}