{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY7305-8CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY7305-8CC","canonicalUrl":"https://aoctrl.com/siemens/5SY7305-8CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SY7305-8CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY7305-8CC miniature circuit breaker, D tripping characteristic, 0.5 A rated current, 3-pole, 400 V AC, 50 kA breaking capacity per IEC 60947-2.","salesMarkdown":"The 54 mm width (3 width units) and 76 mm depth fit standard distribution boards. Combined terminals top and bottom accept solid or stranded conductors from 0.75 to 35 mm², with a tightening torque of 2.5 to 3.5 N·m for screw-type terminations. Halogen-free and silicon-free construction. Overvoltage category III. Touch protection is included. The design reference per DIN EN 61346-2 and DIN EN 81346-2 is F (circuit protection).","metaTitle":"Siemens 5SY7305-8CC SENTRON MCB, D Curve, 0.5 A, 3-Pole","metaDescription":"Siemens 5SY7305-8CC SENTRON miniature circuit breaker, 0.5 A, D tripping characteristic, 3-pole, 400 V AC, 50 kA IEC 60947-2. Current-production part, sourced to order. Request a q","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Depth":"76 mm","Solid":"0.75 ... 35 mm²","Width":"54 mm","Height":"90 mm","Sealable":"Yes","Stranded":"0.75 ... 35 mm²","Rated Value":"50/60 Hz","Halogen-Free":"Yes","Silicon-Free":"Yes","Mounting type":"Quick assembly system","During Storage":"-40 ... +75 °C","Number of poles":"3","Type of voltage":"AC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Ambient temperature":"-25 ... +55 °C","Product designation":"Miniature circuit breaker","Protection class IP":"IP20, with connected conductors","at AC / rated value":"400 V","Overvoltage category":"III","Combined Terminal Top":"Yes","Number of width units":"3","Number of poles / Note":"3P","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","Combined Terminal Bottom":"Yes","circuit-breaker / Design":"5SY7CC","Suitability for operation":"Mechanical engineering / industry","Current / at AC / rated value":"0.5 A","Tripping characteristic class":"D","at DC / rated value / maximum":"72 V","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 AC / acc. to UL 1077 and CSA C22.2 No.235":"5 kA","Tightening torque / with screw-type terminals":"2.5 ... 3.5 N·m","Product function / neutral conductor switching":"No","with multi-phase operation / at AC / rated value":"440 V","with single-phase operation / at AC / rated value":"440 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,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/eeb48e43dcb0a8fc17f287ff1093d435.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=337621&mlfb=5SY7305-8CC","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY7305-8CC/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SY7305-8CC?","answer":"50 kA per IEC 60947-2 at 400 V AC, and 5 kA per UL 1077 and CSA C22.2 No.235."},{"question":"Where can I buy 5SY7305-8CC?","answer":"Sourced and quoted to order against an RFQ through independent distribution — availability and current pricing confirmed at quote time."},{"question":"What wire sizes does 5SY7305-8CC accept?","answer":"Solid or stranded conductors from 0.75 to 35 mm², with a tightening torque of 2.5 to 3.5 N·m on the screw terminals."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY7305-8CC","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/5SY7305-8CC 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}}