{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY5125-7CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY5125-7CC","canonicalUrl":"https://aoctrl.com/siemens/5SY5125-7CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SY5125-7CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY5CC series, miniature circuit breaker, 1-pole, C characteristic, 25 A, 220 V DC, 10 kA breaking capacity per IEC 60947-2.","salesMarkdown":"The Siemens SENTRON 5SY5125-7CC is a 1-pole miniature circuit breaker rated 25 A with a C tripping characteristic, designed for DC circuits up to 220 V and a breaking capacity of 10 kA per IEC 60947-2. That 10 kA rating means it can safely interrupt a fault current up to that level without welding contacts or cascading upstream — critical for DC bus protection in industrial control panels and machinery. ## Mounting and panel fit Snaps onto standard DIN rail via the quick-assembly system, occupying one width unit (18 mm). Depth is 76 mm, installation depth 70 mm, so it clears most 80 mm deep enclosures. Mounting position is any — no derating for horizontal or inverted orientation. IP20 with connected conductors, meaning it's protected against finger contact once wired, but not for wet or dusty environments. ## Environmental and compliance Rated for ambient temperatures from -40 °C to 75 °C, with humidity limits up to 95% at 55 °C. Halogen-free and silicon-free construction — important for sensitive electronics environments where outgassing can cause contact corrosion. Overvoltage category III, pollution degree 3, so it's suited for fixed installations inside industrial panels where transient overvoltages are common.","metaTitle":"Siemens 5SY5125-7CC SENTRON MCB, 1P C 25A DC 220V 10kA","metaDescription":"Siemens SENTRON 5SY5125-7CC miniature circuit breaker, 1-pole C-curve 25A, rated 220V DC, 10kA breaking capacity per IEC 60947-2. Active production, sourced to order. RFQ for price","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":"5SY5125-7CC","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit-breaker 220 V DC 10kA, 1-pole, C, 25A","Halogen-Free":"Yes","Silicon-Free":"Yes","Mounting type":"Quick assembly system","Number of poles":"1","Type of voltage":"DC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Degree of pollution":"3","Product designation":"Miniature circuit breaker","Protection class IP":"IP20, with connected conductors","at DC / rated value":"220 V","Overvoltage category":"III","Combined Terminal Top":"Yes","Number of width units":"1","Number of poles / Note":"1P","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","Combined Terminal Bottom":"Yes","circuit-breaker / Design":"5SY5CC","Suitability for operation":"Mechanical engineering / industry","Tripping characteristic class":"C","at DC / rated value / maximum":"250 V","Position / of power supply cord":"Consider polarity","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":"10 kA","Product function / neutral conductor switching":"No"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/dcca1ac9148ef5b44cb8853768f16163.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=379635&mlfb=5SY5125-7CC"},"ai":{"faq":[{"question":"Where can I buy 5SY5125-7CC and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current pricing and availability — confirmed at quote time."},{"question":"Will 5SY5125-7CC drop into a panel specified for 5SY4116-7CV?","answer":"Both are 1-pole SENTRON MCBs with identical dimensions (76 mm depth, 18 mm width, 90 mm height) and the same quick-assembly DIN-rail mount. The 5SY5125-7CC is a DC-rated variant (220 V, 10 kA) while the 5SY4116-7CV is AC-rated (230 V, 15 kA). Physically interchangeable, but the DC rating and breaking capacity differ — verify the circuit's voltage and fault current before substituting."},{"question":"What is the depth of 5SY5125-7CC?","answer":"The depth is 76 mm, with an installation depth of 70 mm."},{"question":"What is the width of 5SY5125-7CC?","answer":"The width is 18 mm, which is one modular width unit on a standard DIN-rail panel."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY5125-7CC","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/5SY5125-7CC 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}}