{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4140-6CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4140-6CC","canonicalUrl":"https://aoctrl.com/siemens/5SY4140-6CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4140-6CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY4140-6CC, 1-pole B-curve miniature circuit breaker, 40 A, 10 kA IEC, 400 V AC, 18 mm wide, IP20.","salesMarkdown":"For UL 1077 / CSA C22.2 No. 235 applications (supplemental protection), it's rated 5 kA — keep that in mind if the panel requires branch-circuit rated devices. Terminals accept 0.75 to 35 mm² solid or stranded copper, with a listed tightening torque of 2.5 to 3.5 N·m. That 35 mm² top end is unusual for a 40 A breaker — it makes terminating larger supply feeders straightforward. Combined terminal at top and bottom; sealable cover is available for lockout/tagout. Halogen-free and silicon-free construction, which matters for clean-room or sensitive electronics environments. Overvoltage category III, energy limiting class 3. Touch protection is built in. The part is classified per DIN EN 61346-2 and DIN EN 81346-2 function code F.","metaTitle":"Siemens 5SY4140-6CC SENTRON MCB, 1P B 40 A 10 kA","metaDescription":"Siemens 5SY4140-6CC SENTRON miniature circuit breaker, 1-pole B-curve 40 A, 10 kA IEC breaking capacity, 400 V AC, 18 mm wide. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Solid":"0.75 ... 35 mm²","Width":"18 mm","Height":"90 mm","Sealable":"Yes","Stranded":"0.75 ... 35 mm²","Rated Value":"50/60 Hz","Halogen-Free":"Yes","Silicon-Free":"Yes","Mounting type":"Quick assembly system","During Storage":"-40 ... +75 °C","Number of poles":"1","Type of voltage":"AC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Ambient temperature":"-25 ... +55 °C","Product designation":"Miniature circuit breaker","Protection class IP":"IP20, with connected conductors","at AC / rated value":"400 V","Overvoltage category":"III","Combined Terminal Top":"Yes","Energy limiting class":"3","Number of width units":"1","Number of poles / Note":"1P","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","Combined Terminal Bottom":"Yes","circuit-breaker / Design":"5SY4CC","Suitability for operation":"Mechanical engineering / industry","Current / at AC / rated value":"40 A","Tripping characteristic class":"B","at DC / rated value / maximum":"72 V","acc. to EN 60898 / rated value":"10 kA","Position / of power supply cord":"Any","Product feature / Touch protection":"Yes","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","Tightening torque / with screw-type terminals":"2.5 ... 3.5 N·m","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","Tightening torque [lbf·in] / with screw-type terminals":"22 ... 31 lbf·in"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/6ae9e4a1734bca431f6b00bc5f5e5c60.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=275698&mlfb=5SY4140-6CC","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY4140-6CC/alternatives.json"},"ai":{"faq":[{"question":"How do I get pricing and availability for 5SY4140-6CC?","answer":"Pricing and availability are confirmed at quote time against an RFQ. Submit a request through your preferred distribution channel for current lead time and per-unit pricing."},{"question":"Will 5SY4140-6CC drop into a panel specified around 5SY7140-8CC?","answer":"Yes, both are 18 mm wide 1-pole MCBs with the same terminal range (0.75 to 35 mm² solid/stranded), so the 5SY4140-6CC fits the same DIN-rail footprint and wiring without rewiring. Verify the B-curve and breaking capacity match your design."},{"question":"What compliance documentation does the 5SY4140-6CC have?","answer":"It carries IEC EN 60898 ratings (10 kA) and UL 1077 / CSA C22.2 No. 235 ratings (5 kA). The SENTRON series is RoHS and REACH compliant per Siemens standard documentation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4140-6CC","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/5SY4140-6CC 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}}