{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY7640-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY7640-7","canonicalUrl":"https://aoctrl.com/siemens/5SY7640-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SY7640-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY7640-7, 4-pole (3P+N) miniature circuit breaker, C-curve, 15 kA (EN 60898) / 20 kA (IEC 60947-2), 400 V AC, 4 MW, IP20.","salesMarkdown":"Lifecycle status is current production — no phase-out or last-time-buy notice on this order code. The 5SY7640-7 is an active catalog line within the SENTRON family, so it can be specified into new BOMs without an obsolescence risk horizon. Sourced to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time. Mounts in any position on 35 mm DIN rail via the quick-assembly system — no tools needed for snap-on. Depth is 76 mm (70 mm behind the panel face), which fits standard 80 mm deep enclosures. The combined top and bottom terminals accept Cu conductors; IP20 with conductors connected means it's protected against finger contact inside a closed panel but not against dripping water — keep it inside a rated enclosure. Sealable (padlockable toggle) for lockout/tagout compliance on the branch circuit. Halogen-free and silicon-free construction matters if this breaker lives in a clean room or near sensitive electronics where outgassing can cause contact corrosion.","metaTitle":"Siemens 5SY7640-7 SENTRON MCB, 4-pole C-curve 15/20 kA","metaDescription":"Siemens 5SY7640-7 SENTRON miniature circuit breaker, 4-pole (3P+N), C-curve, 15 kA (EN 60898) / 20 kA (IEC 60947-2) breaking capacity. Active production, sourced to order. Request","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Depth":"76 mm","Width":"72 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Standard":"IEC / EN 60898-1, IEC / EN 60947-2 / UL1077","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"3P+N","Number Of Poles":"4","lifecycle_stage":"current","Fastening Method":"Quick assembly system","Mounting Position":"any","at AC rated value":"400 V","at DC rated value":"60 V","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 Limitation Class":"3","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","Neutral Conductor Switching":"Yes","Number Of Modular Width Units":"4","Position Of Power Supply Cord":"Any","Tripping Characteristic Class":"C","according to EN 60898 rated value":"15 kA","according to IEC 60947-2 rated value":"20 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","operating voltage at DC rated value maximum":"72 V","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":"3.5 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=46719&mlfb=5SY7640-7","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY7640-7/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation does Siemens provide for the 5SY7640-7?","answer":"The breaker is certified to IEC/EN 60898-1, IEC/EN 60947-2, and UL 1077. It is halogen-free and silicon-free. Standard compliance documentation (declaration of conformity, CE, UKCA) is available from the manufacturer."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY7640-7","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/5SY7640-7 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}}