{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY8614-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY8614-7","canonicalUrl":"https://aoctrl.com/siemens/5SY8614-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SY8614-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY8614-7 miniature circuit breaker, 4-pole (3P+N), C-characteristic, 0.3 A rated current, 70 kA breaking capacity at 400 V AC per IEC 60947-2.","salesMarkdown":"The Siemens 5SY8614-7 is a SENTRON miniature circuit breaker, 4-pole (3P+N), C-characteristic, rated 0.3 A at 400 V AC. Its 70 kA breaking capacity per IEC 60947-2 means it can safely interrupt fault currents up to that level without upstream cascading — a key spec for high-fault panels where selectivity matters. At DC per the same standard it handles 15 kA, and under UL 1077 / CSA C22.2 No.235 it's rated 5 kA. The C-curve trips between 5 and 10 times rated current — typical for motor and transformer branch circuits where inrush isn't extreme but still above lighting loads. At 0.3 A this is a low-current MCB, not a general-purpose lighting breaker; it's sized for control transformers, contactor coils, or PLC power supplies drawing under 0.3 A. The 4-pole version with switched neutral (3P+N) suits three-phase systems where you want the neutral opened and closed with the phases. Mounts on DIN rail via the quick assembly system, 4 modular width units (72 mm wide). Installation depth is 70 mm; total depth 76 mm. Any mounting position is allowed, and the IP20 rating (with connected conductors) means it's for enclosed panel use only — not for wet or outdoor locations. The combined terminal top and bottom accept the same conductor range, and the neutral is switched internally (3P+N). Sealable to prevent tampering, halogen-free and silicon-free for environments sensitive to outgassing.","metaTitle":"Siemens 5SY8614-7 SENTRON MCB, 4P C-Char 0.3A, 70kA","metaDescription":"Siemens 5SY8614-7 SENTRON miniature circuit breaker, 4-pole (3P+N), C-curve 0.3 A, 70 kA breaking capacity at 400 V AC per IEC 60947-2. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["4-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"72 mm","title":"5SY8614-7","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V D=70 mm 25 kA according to EN 60947-2, 3P+N, C0.3","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"4","Type Of Voltage":"AC","lifecycle_stage":"current","Fastening Method":"Quick assembly system","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"3","Product Designation":"Miniature circuit breaker","acc. to IEC 81346-2":"F","at AC / rated value":"0.3 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","Number Of Poles / Note":"3P+N","acc. to DIN EN 61346-2":"F","at 45 °C / rated value":"0.3 A","at 50 °C / rated value":"0.29 A","at 55 °C / rated value":"0.28 A","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","Number Of Modular Width Units":"4","Tripping Characteristic Class":"C","Position / Of Power Supply Cord":"Any","acc. to IEC 60947-2 / rated value":"70 kA","Product Feature / Touch Protection":"Yes","Supply Voltage Frequency / Rated Value":"50/60 Hz","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":"15 kA","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":"Yes","with multi-phase operation / at AC / rated value":"440 V","operating voltage / at DC / rated value / maximum":"72 V","with single-phase operation / at AC / rated value":"440 V","Mechanical Service Life (Operating Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/fa648507e240c210501ea171ca97382c.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=197245&mlfb=5SY8614-7"},"ai":{"faq":[{"question":"Where can I buy 5SY8614-7 and how do I get a price?","answer":"The 5SY8614-7 is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time."},{"question":"What is 5SY8614-7's breaking capacity at 400 V AC?","answer":"70 kA per IEC 60947-2 at 400 V AC. At DC per the same standard it's 15 kA; under UL 1077 / CSA C22.2 No.235 it's 5 kA."},{"question":"What compliance documentation does this brand provide for 5SY8614-7?","answer":"The part carries IEC 60947-2, UL 1077, and CSA C22.2 No.235 ratings. It is halogen-free and silicon-free. Full compliance documentation (declarations, certificates) is available from the manufacturer or distributor on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY8614-7","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/5SY8614-7 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}}