{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY7505-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY7505-7","canonicalUrl":"https://aoctrl.com/siemens/5SY7505-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SY7505-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON, miniature circuit breaker, 5SY7505-7, 0.5 A AC rated, C-curve, 2-pole (1P+N), breaking capacity 15 kA (EN 60898) / 50 kA (IEC 60947-2), IP20 with conductors.","salesMarkdown":"The Siemens SENTRON 5SY7505-7 is a 2-pole miniature circuit breaker (1P+N) rated at 0.5 A AC with a C-curve tripping characteristic, designed for branch-circuit protection in industrial control panels. Pollution degree 3 tells you it handles conductive dust and occasional condensation, typical of factory-floor enclosures. Rated breaking capacity is 15 kA per EN 60898 and 50 kA per IEC 60947-2 — the 50 kA figure governs for industrial installations where fault current can be high; the 15 kA covers residential/commercial coordination. ## Temperature derating — the real-world rating The 0.5 A rating holds at 35 °C but drops to 0.47 A at 40 °C, 0.45 A at 45 °C, 0.44 A at 50 °C, 0.42 A at 55 °C, and 0.4 A at 60 °C. If your panel ambient runs 50 °C, you're effectively working with a 0.44 A breaker — size upstream or downstream accordingly. Ambient range is -40 °C to 75 °C, with humidity limits per: 95% RH up to 55 °C, then derating to 35% at 75 °C. Width 36 mm, height 90 mm. Combined terminal top and bottom means you can feed either direction. Sealable, halogen-free, silicon-free. Touch protection is built in. Overvoltage category III — suitable for fixed-installation distribution boards, not just final circuits.","metaTitle":"Siemens 5SY7505-7 SENTRON MCB, 0.5 A C-Curve, 2-Pole 1P+N","metaDescription":"Siemens 5SY7505-7 SENTRON miniature circuit breaker, 0.5 A rated AC, C-curve, 2-pole 1P+N, 15 kA breaking capacity per EN 60898, 50 kA per IEC 60947-2. Active production, sourced t","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"36 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"1P+N","Number Of Poles":"2","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":"0.5 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":"0.5 A","at 40 °C / rated value":"0.47 A","at 45 °C / rated value":"0.45 A","at 50 °C / rated value":"0.44 A","at 55 °C / rated value":"0.42 A","at 60 °C / rated value":"0.4 A","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","Number Of Modular Width Units":"2","Tripping Characteristic Class":"C","acc. to EN 60898 / rated value":"15 kA","Position / Of Power Supply Cord":"Any","acc. to IEC 60947-2 / rated value":"50 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":"Yes","operating voltage / at DC / rated value / maximum":"72 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,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=241175&mlfb=5SY7505-7","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY7505-7/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SY7505-7?","answer":"15 kA per EN 60898, 50 kA per IEC 60947-2, and 15 kA DC per IEC 60947-2."},{"question":"What is the closest functional second-source to 5SY7505-7?","answer":"The Siemens 5SY4140-7 is a 1-pole MCB with a different pole count; it will not drop into a panel wired for 2-pole (1P+N) without rewiring. For a 2-pole C-curve replacement at 0.5 A, the 5SY7505-7 is the direct fit."},{"question":"Where can I buy 5SY7505-7?","answer":"Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY7505-7","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/5SY7505-7 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}}