{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY6305-7CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY6305-7CC","canonicalUrl":"https://aoctrl.com/siemens/5SY6305-7CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SY6305-7CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY6305-7CC miniature circuit breaker, C-curve, 0.5 A, 3-pole, 400 V AC, 6 kA (EN 60898), 3 width units, quick-assembly mounting.","salesMarkdown":"## Siemens 5SY6305-7CC SENTRON MCB — C-Curve, 0.5 A, 3-Pole The Siemens 5SY6305-7CC is a SENTRON miniature circuit breaker (MCB) with a C tripping characteristic, rated 0.5 A at 400 V AC, 50/60 Hz. The C-curve means it's designed for moderate inrush loads — typical for small motor circuits, transformers, or lighting banks in mechanical engineering and industrial panels. Breaking capacity is 6 kA per EN 60898, with a separate UL 1077 / CSA C22.2 No. 235 rating of 5 kA for North American acceptance. Mounting position is unrestricted, and the breaker is sealable for tamper-proof applications. Overall dimensions: 90 mm height, 54 mm width, 76 mm depth. The 3-pole unit occupies three 18 mm width units. ## DC & Compliance Notes For DC circuits, the maximum rated voltage is 72 V. The breaker does not switch the neutral conductor. Vibration resistance per IEC 60068-2-6: ±1 mm at 5 to 25 Hz, 50 m/s² at 25 to 150 Hz. The design code is 5SY6CC; functional designation per DIN EN 61346-2 and DIN EN 81346-2 is 'F'.","metaTitle":"Siemens 5SY6305-7CC SENTRON MCB, C-Curve, 0.5 A, 3-Pole, 400","metaDescription":"Siemens 5SY6305-7CC SENTRON miniature circuit breaker, C tripping characteristic, 0.5 A rated current, 3-pole, 400 V AC, 6 kA breaking capacity per EN 60898. Sourced to order again","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["3-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"54 mm","title":"5SY6305-7CC","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Rated Value":"50/60 Hz","description":"Miniature circuit breaker 400 V 6kA, 3-pole, C, 0.5 A","Halogen-Free":"Yes","Silicon-Free":"Yes","Mounting Type":"Quick assembly system","Number Of Poles":"3","Type Of Voltage":"AC","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","Overvoltage Category":"III","Combined Terminal Top":"Yes","Energy Limiting Class":"3","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":"5SY6CC","Suitability For Operation":"Mechanical engineering / industry","Tripping Characteristic Class":"C","at DC / rated value / maximum":"72 V","acc. to EN 60898 / rated value":"6 kA","Position / Of Power Supply Cord":"Any","Product Feature / Touch Protection":"Yes","supply voltage / at AC / rated value":"400 V","operating current / at AC / rated value":"0.5 A","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","vibration resistance / acc. to IEC 60068-2-6":"±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz","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"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/3fb71566259f0702a483e59fdd133fb0.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=398011&mlfb=5SY6305-7CC"},"ai":{"faq":[{"question":"Where can I buy the 5SY6305-7CC and what is the lead time?","answer":"The 5SY6305-7CC is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for your quantity and delivery window."},{"question":"What are the key ratings of the 5SY6305-7CC?","answer":"Rated 0.5 A at 400 V AC, C-curve, 3-pole, 6 kA breaking capacity per EN 60898 (5 kA per UL 1077/CSA C22.2 No. 235). Temperature range -40 °C to 75 °C, IP20 with conductors connected."},{"question":"Will the 5SY6305-7CC drop into a panel specified for the 5SY3132-6?","answer":"Not without checking the rating. The 5SY3132-6 is a different current/curve variant in the same SENTRON family — same DIN-rail footprint and 3-pole format, but verify the trip curve, amp rating, and breaking capacity match your panel design before swapping."},{"question":"What compliance documentation does Siemens provide for the 5SY6305-7CC?","answer":"The breaker carries EN 60898 (6 kA) and UL 1077 / CSA C22.2 No. 235 (5 kA) certifications. It is halogen-free and silicon-free, meeting clean-room material restrictions. Standard Siemens declarations for RoHS and REACH are available on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY6305-7CC","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/5SY6305-7CC 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}}