{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY6305-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY6305-7","canonicalUrl":"https://aoctrl.com/siemens/5SY6305-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SY6305-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY6 series, miniature circuit breaker, 3-pole, C-curve, 0.5 A AC, 6 kA (EN 60898) / 30 kA (IEC 60947-2), 3 MW, IP20, sealable.","salesMarkdown":"## Siemens 5SY6305-7 — SENTRON 3-Pole MCB, C-Curve, 0.5 A Rated breaking capacity is 6 kA per EN 60898-1 and 30 kA per IEC 60947-2 / UL1077. Thermal derating is published: 0.5 A at 35 °C, 0.48 A at 40 °C, 0.46 A at 45 °C, 0.45 A at 50 °C, 0.44 A at 55 °C. For a panel that runs warm (say 50 °C inside the enclosure), the effective continuous current is 0.45 A — not 0.5 A. The ambient humidity limits are also specified: max 95% RH up to 55 °C, derating to 35% RH at 75 °C. Depth is 76 mm (installation depth 70 mm), width 54 mm (3 MW), height 90 mm. The combined terminal design (top and bottom) accepts conductors without separate busbar adapters for most configurations. Neutral conductor switching is not provided; this is a 3-pole breaker for line switching only, with neutral assumed solidly bonded or switched separately. Certified to IEC / EN 60898-1 (domestic/commercial MCB standard) and IEC / EN 60947-2 / UL1077 (industrial circuit-breaker standard). The dual rating means it can be specified for either a residential-type distribution board (6 kA) or an industrial panel with higher fault capacity (30 kA). Energy limitation class 3 — limits let-through energy during a fault, reducing stress on downstream components. The part carries the function designation F per both EN 61346-2 and IEC 81346-2.","metaTitle":"Siemens 5SY6305-7 SENTRON MCB, 3P, C-0.5A, 6kA/30kA","metaDescription":"Siemens 5SY6305-7 SENTRON miniature circuit breaker, 3-pole, C-curve, 0.5 A, 6 kA (EN 60898) / 30 kA (IEC 60947-2). Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["3-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"54 mm","title":"5SY6305-7","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Standard":"IEC / EN 60898-1, IEC / EN 60947-2 / UL1077","description":"Miniature circuit breaker 400 V 6kA, 3-pole, C, 0.5A, D=70 mm","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"3P","Number Of Poles":"3","lifecycle_stage":"current","Fastening Method":"Quick assembly system","Mounting Position":"any","at AC rated value":"0.5 A","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","at 35 °C rated value":"0.5 A","at 40 °C rated value":"0.48 A","at 45 °C rated value":"0.46 A","at 50 °C rated value":"0.45 A","at 55 °C rated value":"0.44 A","Energy Limitation Class":"3","according to EN 61346-2":"F","Combined Terminal Bottom":"Yes","according to IEC 81346-2":"F","Suitability For Operation":"Mechanical engineering / industry","Neutral Conductor Switching":"No","Number Of Modular Width Units":"3","Position Of Power Supply Cord":"Any","Tripping Characteristic Class":"C","according to EN 60898 rated value":"6 kA","according to IEC 60947-2 rated value":"30 kA","Influence Of The Surrounding Temperature":"max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C","Type Of Voltage Of The Operating Voltage":"AC","at DC according to IEC 60947-2 rated value":"15 kA","Value Range Of The Supply Voltage Frequency":"50/60 Hz","with multi-phase operation at AC rated value":"440 V","with single-phase operation at AC rated value":"440 V","at AC according to UL 1077 and CSA C22.2 No.235":"5 kA","vibration resistance according to IEC 60068-2-6":"±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz","Mechanical Service Life (Operating Cycles) Typical":"10 000","Product Extension Installable Supplementary Devices":"Yes","supply voltage with single-phase operation at AC rated value":"230 V","power loss [W] for rated value of the current at AC in hot operating state per pole":"0.8 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$40.01","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/fc04bfbc60eaec0ef6452b1387b1a10c.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=28532&mlfb=5SY6305-7"},"ai":{"faq":[{"question":"What compliance documentation does Siemens provide for 5SY6305-7?","answer":"The breaker is certified to IEC / EN 60898-1 and IEC / EN 60947-2 / UL1077. It is halogen-free and silicon-free. Compliance documentation (declarations of conformity, RoHS/REACH statements) is available from Siemens upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY6305-7","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/5SY6305-7 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}}