{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY7240-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY7240-7","canonicalUrl":"https://aoctrl.com/siemens/5SY7240-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SY7240-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY7240-7, 2-pole miniature circuit breaker, C-curve, 15 kA per EN 60898, 20 kA per IEC 60947-2, 400 V AC, 60 V DC.","salesMarkdown":"## Siemens SENTRON 5SY7240-7 — 2-pole C-curve MCB for panel builders Breaking capacity is certified under three standards: 15 kA per EN 60898-1, 20 kA per IEC 60947-2, and 15 kA at DC per IEC 60947-2. The DC rating at 60 V covers control-circuit protection where a 60 V DC supply feeds relay coils or solenoids. Dimensions: 36 mm wide (2 modular width units), 90 mm high, 76 mm deep. Installation depth is 70 mm. Snap-on mounting to DIN rail, any mounting position. IP20 with conductors connected. ## Certification and compliance documentation Certified to IEC / EN 60898-1 and IEC / EN 60947-2, plus UL 1077 — the UL 1077 listing covers supplementary protectors for North American panels, while the IEC 60947-2 rating qualifies it for industrial circuit-breaker duty. Halogen-free and silicon-free construction supports use in clean-room or electronics-manufacturing environments where outgassing contaminants must be minimised. Sealable — the toggle can be locked in the off position for lockout/tagout compliance. ## Environmental range and terminal details Ambient temperature range spans -40 °C to +75 °C (–), with derated humidity limits: 95% RH up to 55 °C, 55% RH up to 70 °C, 35% RH up to 75 °C. Neutral conductor is not switched — this is a 2-pole breaker with both poles protecting line conductors, not a 1P+N configuration.","metaTitle":"Siemens 5SY7240-7 SENTRON MCB, 2P C-Curve, 15/20 kA","metaDescription":"Siemens SENTRON 5SY7240-7 2-pole miniature circuit breaker, C-curve, 15 kA (EN 60898) / 20 kA (IEC 60947-2). Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["2-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":"2P","Number Of Poles":"2","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":"No","Number Of Modular Width Units":"2","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":"https://cdn.aoctrl.com/89a1678bf9cd02e7fd13f576e92b58dc.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=355812&mlfb=5SY7240-7","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY7240-7/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation does Siemens provide for 5SY7240-7?","answer":"The breaker carries certifications to IEC/EN 60898-1, IEC/EN 60947-2, and UL 1077. It is halogen-free and silicon-free, supporting RoHS/REACH compliance documentation from Siemens."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY7240-7","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/5SY7240-7 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}}