{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4505-7CC11","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4505-7CC11","canonicalUrl":"https://aoctrl.com/siemens/5SY4505-7CC11","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4505-7CC11","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON miniature circuit breaker, 5SY4505-7CC11, 0.5 A rated current, C tripping characteristic, 2-pole (1P+N), 10 kA breaking capacity at 230 V AC.","salesMarkdown":"The Siemens 5SY4505-7CC11 is a SENTRON miniature circuit breaker rated 0.5 A at 230 V AC with a C tripping characteristic, meaning it trips between 5 and 10 times rated current — so a 0.5 A C-curve holds through a 2.5 A to 5 A surge before opening. That's sized for protecting a control transformer primary, a small contactor coil circuit, or a signal-conditioning supply where a B-curve would nuisance-trip on inrush but a D-curve would let a sustained fault ride through too long. The 10 kA breaking capacity at 230 V AC per EN 60898 gives enough fault-clearing headroom for most industrial panelboards fed from a 16 A to 63 A upstream device. Two-pole 1P+N construction means the neutral pole switches with the phase — required when the neutral is not bonded to ground downstream, such as in a sub-distribution board or a railway auxiliary panel. ## DIN-rail fit and conductor range — what bolts straight in Width is 36 mm — two modular width units. Depth 76 mm, height 90 mm. ## Environmental and compliance specs Halogen-free and silicon-free construction. Ambient temperature range -40 to +70 °C operating, -40 to +75 °C storage. IP20 with connected conductors — finger-safe once wired. Overvoltage category III. Sealable — a lead seal can be fitted to prevent tampering. Designed for railway applications. Touch protection feature.","metaTitle":"Siemens 5SY4505-7CC11 SENTRON MCB, 0.5 A C-Curve 2-Pole 10 k","metaDescription":"Siemens 5SY4505-7CC11 SENTRON miniature circuit breaker, 0.5 A rated current, C tripping characteristic, 10 kA breaking capacity at 230 V AC, 2-pole 1P+N, IP20. Active production;","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Solid":"0.75 ... 35 mm²","Width":"36 mm","title":"5SY4505-7CC11","Height":"90 mm","Sealable":"Yes","Stranded":"0.75 ... 35 mm²","Rated Value":"50/60 Hz","description":"Circuit breaker 230 V 10kA, 1+N-pole, C, 0.5 A for railway applications","Halogen-Free":"Yes","Silicon-Free":"Yes","Mounting type":"Quick assembly system","During Storage":"-40 ... +75 °C","Number of poles":"2","Type of voltage":"AC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Ambient temperature":"-40 ... +70 °C","Product designation":"Miniature circuit breaker","Protection class IP":"IP20, with connected conductors","at AC / rated value":"230 V","Overvoltage category":"III","Combined Terminal Top":"Yes","Design of the product":"For railway applications","Energy limiting class":"3","Number of width units":"2","Number of poles / Note":"1P+N","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","Combined Terminal Bottom":"Yes","Suitability for operation":"Mechanical engineering / industry","Current / at AC / rated value":"0.5 A","Tripping characteristic class":"C","at DC / rated value / maximum":"72 V","acc. to EN 60898 / rated value":"10 kA","Position / of power supply cord":"Any","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","Tightening torque / with screw-type terminals":"2.5 ... 3.5 N·m","Product function / neutral conductor switching":"Yes","with single-phase operation / at AC / rated value":"250 V","Mechanical service life (switching cycles) / typical":"10 000","Tightening torque [lbf·in] / with screw-type terminals":"22 ... 31 lbf·in"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/8b4b853b427e38f264f86a447a2e2d64.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=719131&mlfb=5SY4505-7CC11"},"ai":{"faq":[{"question":"What conductor sizes does the 5SY4505-7CC11 accept?","answer":"It accepts solid and stranded conductors from 0.75 mm² up to 35 mm². Screw terminals with a tightening torque of 2.5 to 3.5 N·m."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4505-7CC11","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/5SY4505-7CC11 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}}