{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY6540-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY6540-7","canonicalUrl":"https://aoctrl.com/siemens/5SY6540-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SY6540-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY6540-7 miniature circuit breaker, C-curve, 2-pole 1P+N, 6 kA per EN 60898 / 10 kA per IEC 60947-2, 230 V AC, 60 V DC, 2 MW, IP20.","salesMarkdown":"Breaking capacity sits at 6 kA per EN 60898 and 10 kA per IEC 60947-2; that 10 kA figure is the one that matters for industrial panel coordination — it tells you the breaker can safely interrupt a fault up to 10 kA at 230 V AC without welding its contacts or cascading upstream. At DC it's rated 15 kA at 60 V (max 72 V), so it also works in 48 V or 60 V battery-backed control circuits. IP20 with conductors connected, so it's a panel-internal part; no washdown rating. Temperature range is -40 °C to 75 °C, with derating above 55 °C per the humidity curve (max 95% RH at 55 °C, dropping to 35% at 75 °C). Designed to IEC / EN 60898-1 (household-type MCB) and IEC / EN 60947-2 (industrial circuit-breaker standard), plus UL 1077 and CSA C22.2 No. 235 for North American supplementary protection. The UL 1077 rating is 5 kA — lower than the IEC figures, so if the panel is destined for a UL-listed machine, that 5 kA is the enforceable limit. Halogen-free and silicon-free construction, sealable (padlockable handle), and vibration tested per IEC 60068-2-6 (1 mm at 5–25 Hz, 50 m/s² at 25–150 Hz).","metaTitle":"Siemens SENTRON 5SY6540-7 MCB, C-Curve 2-Pole 1P+N, 6kA/10kA","metaDescription":"Siemens SENTRON 5SY6540-7 miniature circuit breaker, C-curve, 2-pole 1P+N, 6 kA (EN 60898) / 10 kA (IEC 60947-2). Active production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"36 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":"1P+N","Number Of Poles":"2","lifecycle_stage":"current","Fastening Method":"Quick assembly system","Mounting Position":"any","at AC rated value":"230 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":"2","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":"10 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 single-phase operation at AC rated value":"250 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=99811&mlfb=5SY6540-7","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY6540-7/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SY6540-7 and how do I get a price?","answer":"This part 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 a firm price and lead time."},{"question":"What is 5SY6540-7's listed depth (76 mm) on this component line?","answer":"The overall depth is 76 mm; the installation depth (behind the panel face) is 70 mm."},{"question":"What is 5SY6540-7's listed width (36 mm) on this component line?","answer":"Width is 36 mm, which corresponds to 2 modular width units on a standard DIN-rail panel."},{"question":"What compliance documentation does this brand provide for 5SY6540-7?","answer":"The part carries approvals to IEC / EN 60898-1, IEC / EN 60947-2, UL 1077, and CSA C22.2 No. 235. It is halogen-free and silicon-free. Vibration resistance per IEC 60068-2-6 is documented."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY6540-7","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/5SY6540-7 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}}