{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4220-8","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4220-8","canonicalUrl":"https://aoctrl.com/siemens/5SY4220-8","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4220-8","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY4220-8, 2-pole miniature circuit breaker, 20 A rated, D tripping characteristic, 36 mm width (2 modular width units).","salesMarkdown":"## D-curve selectivity for motor and transformer circuits The 5SY4220-8: The higher IEC 60947-2 figure applies when the MCB is used in an industrial panel with a known prospective fault current; the EN 60898 rating governs residential or commercial distribution boards. Both standards are listed on the same device. ## Temperature derating and ambient limits Rated 20 A at 35 °C ambient. No stock-holding claim; procurement is per BOM quantity.","metaTitle":"Siemens 5SY4220-8 SENTRON 2-Pole MCB, 20 A, D Curve","metaDescription":"Siemens 5SY4220-8 SENTRON 2-pole MCB, 20 A rated, D tripping characteristic. Breaking capacity 10 kA (EN 60898) / 20 kA (IEC 60947-2). UL 1077 listed.","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","title":"5SY4220-8","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Standard":"IEC / EN 60898-1, IEC / EN 60947-2 / UL1077","description":"Miniature circuit breaker 400 V 10kA, 2-pole, D, 20 A, D=70 mm","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":"20 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":"20 A","at 40 °C rated value":"18.78 A","at 45 °C rated value":"18.14 A","at 50 °C rated value":"17.48 A","at 55 °C rated value":"16.8 A","at 60 °C rated value":"16.08 A","according to EN 61346-2":"F","Combined Terminal Bottom":"Yes","according to IEC 81346-2":"F","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":"D","according to EN 60898 rated value":"10 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 (Switching 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":"1.6 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$27.77","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/cbc9dd368dade2717d77493fdeccb7c7.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=194961&mlfb=5SY4220-8"},"ai":{"faq":[{"question":"What is the breaking capacity of the Siemens 5SY4220-8?","answer":"The applicable rating depends on the installation standard your panel is designed to."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4220-8","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/5SY4220-8 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}