{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4420-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4420-7","canonicalUrl":"https://aoctrl.com/siemens/5SY4420-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4420-7","rawCanonicalId":null},"summary":{"shortDescription":"SENTRON 5SY4420-7, 4-pole C20A miniature circuit breaker, 20 A rated, 10/20 kA breaking capacity, 76 mm depth.","salesMarkdown":"## Visual Verification – What to Check on Arrival The 5SY4420-7: Fake until proven real – start with the sealable housing and the halogen-free marking. Both are factory-identifiers that re-markers routinely omit. The product designation and brand should be laser-engraved, not ink-stamped; surfaces must be free of solvent wipe marks. The 76 mm depth and 72 mm width correspond to 4 modular units on a DIN rail – a common footprint. Cross-check the physical dimensions against the labelled value; any deviation suggests a re-label from a smaller-frame part. ## Panel Fit & Derating Mounts in any position and uses the quick assembly system. The part is silicon-free – no risk of silicone outgassing near sensitive contacts or optics. ## Compliance & Sourcing Designed to IEC/EN 60898-1, IEC/EN 60947-2, and UL1077 – covers both domestic and light-industrial installations. No official L* successor is available; verify qty and lead time with your distributor before committing to a BOM line.","metaTitle":"SENTRON 5SY4420-7 4-Pole C20A MCB, 76mm Depth","metaDescription":"SENTRON 5SY4420-7 4-pole miniature circuit breaker, 20 A C-curve, 10/20 kA breaking, 76 mm depth, 72 mm width. Halogen-free, sealable. Sourced via RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["4-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"72 mm","title":"5SY4420-7","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, 4-pole, C, 20 A, D=70 mm","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"4P","Number Of Poles":"4","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":"19.04 A","at 45 °C rated value":"18.54 A","at 50 °C rated value":"18.04 A","at 55 °C rated value":"17.5 A","at 60 °C rated value":"16.96 A","Energy Limitation Class":"3","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":"4","Position Of Power Supply Cord":"Any","Tripping Characteristic Class":"C","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 (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":"1.7 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$338.66","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/584bd50b64ff499fc1a642ba5bc6b651.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=395892&mlfb=5SY4420-7"},"ai":{"faq":[{"question":"What is the depth of the 5SY4420-7?","answer":"The depth is 76 mm. With connected conductors it protrudes to 70 mm installation depth at the DIN rail clip."},{"question":"What is the width of the 5SY4420-7?","answer":"The width is 72 mm, which is 4 modular units."},{"question":"What compliance standards does the 5SY4420-7 meet?","answer":"It meets IEC/EN 60898-1, IEC/EN 60947-2, and UL1077. This combines household and industrial breaker standards plus U.S. supplementary protector listing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4420-7","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/5SY4420-7 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}}