{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY7250-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY7250-7","canonicalUrl":"https://aoctrl.com/siemens/5SY7250-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SY7250-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY7250-7, 2-pole miniature circuit breaker, C-curve, 50 A rated, 15 kA (EN 60898) / 20 kA (IEC 60947-2) breaking capacity, 36 mm wide, IP20.","salesMarkdown":"## What it is and what it does The Siemens SENTRON 5SY7250-7 is a 2-pole miniature circuit breaker with a C-curve trip characteristic, rated 50 A at AC. It carries a breaking capacity of 15 kA per EN 60898-1 and 20 kA per IEC 60947-2, with a DC rating of 15 kA per IEC 60947-2. That dual-standard rating means it's certified for both residential-style distribution panels (EN 60898) and industrial panelboard applications (IEC 60947-2) — a single SKU that covers both spec books. The C-curve trips between 5 and 10 times rated current, so it's sized for motor-starting inrush and moderate inductive loads — common on conveyor drives, pumps, and small compressors in mechanical engineering and industry. ## Panel fit and mounting Width is 36 mm (2 modular units), depth 76 mm, height 90 mm. Snaps onto DIN rail via the quick-assembly system in any mounting position. Installation depth is 70 mm — that's the clearance behind the panel door you need to budget. IP20 with connected conductors means it's protected against solid objects larger than 12 mm but not against moisture; keep it inside a sealed enclosure. Combined terminals top and bottom accept both busbar and cable, which simplifies daisy-chaining in a multi-pole distribution block. Sealable — you can lock the toggle to prevent unauthorized reset. ## Thermal derating and environment Rated 50 A at 35 °C ambient; at 40 °C it's 47.6 A, at 50 °C it's 45.1 A, at 60 °C it's 42.4 A. If your panel runs hot — say near a drive or transformer — size the upstream protection for the derated value, not the 50 A label. Ambient range is -40 to 75 °C, pollution degree 3, overvoltage category III. Halogen-free and silicon-free — relevant if the panel is in a clean-room or semiconductor fab where outgassing matters.","metaTitle":"Siemens 5SY7250-7 SENTRON MCB, 2P C-curve 50 A, 15/20 kA","metaDescription":"Siemens SENTRON 5SY7250-7 miniature circuit breaker, 2-pole C-curve 50 A, breaking capacity 15 kA (EN 60898) / 20 kA (IEC 60947-2). Active lifecycle. Sourced to order. RFQ for curr","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":"50 A","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","at 35 °C rated value":"50 A","at 40 °C rated value":"47.6 A","at 45 °C rated value":"46.35 A","at 50 °C rated value":"45.1 A","at 55 °C rated value":"43.75 A","at 60 °C rated value":"42.4 A","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":"3.8 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/cfe93fc6f6df4a946ab4a75fb4cb2da9.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=81247&mlfb=5SY7250-7","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY7250-7/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation does Siemens provide for 5SY7250-7?","answer":"The breaker is certified to IEC / EN 60898-1 and IEC / EN 60947-2 / UL1077. It is halogen-free and silicon-free. Standard Siemens declarations for RoHS and REACH are available on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY7250-7","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/5SY7250-7 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}}