{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY6220-6","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY6220-6","canonicalUrl":"https://aoctrl.com/siemens/5SY6220-6","factsUrl":"https://aoctrl.com/api/mcp/products/5SY6220-6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY6220-6, miniature circuit breaker, 2-pole, 20 A AC, B characteristic, 6 kA / 15 kA.","salesMarkdown":"## What it is and what it does The Siemens 5SY6220-6 is a SENTRON miniature circuit breaker, 2-pole, rated 20 A at AC with a B tripping characteristic. It's built to protect branch circuits in industrial control panels, distribution boards, and machinery — the B curve means it trips between 3 and 5 times rated current, so it's a good fit for resistive or lightly inductive loads where you want fast clearing on a short circuit but don't need the inrush headroom of a C or D curve. It carries dual breaking-capacity ratings: 6 kA per EN 60898 for domestic-type installations, and 15 kA per IEC 60947-2 for industrial duty. That 15 kA figure is the one that matters in a panel with a high-fault transformer upstream — it tells you the breaker can clear a bolted fault without welding its contacts. ## What the ratings mean for fit The 20 A rating is at 35 °C ambient. At 40 °C it derates to 18.78 A, at 50 °C to 17.48 A — so if your panel runs hot, you need to account for that. The breaker is rated for overvoltage category III and pollution degree 3, which is typical for fixed-installation industrial panels. IP20 with connected conductors means it's not sealed against dust ingress, but the sealable option (yes) lets you lock the handle position for safety lockout/tagout.","metaTitle":"Siemens 5SY6220-6 SENTRON MCB, 2P, 20 A, B Curve","metaDescription":"Siemens 5SY6220-6 SENTRON miniature circuit breaker, 2-pole, 20 A rated, B tripping characteristic, 6 kA (EN 60898) / 15 kA (IEC 60947-2). Current lifecycle stage. Sourced 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","title":"5SY6220-6","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 6kA, 2-pole, B, 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","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":"2","Position Of Power Supply Cord":"Any","Tripping Characteristic Class":"B","according to EN 60898 rated value":"6 kA","according to IEC 60947-2 rated value":"15 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":"2.2 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$20.32","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/cd633975c3fa0f877ee6fb9f0c0f62a9.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=203325&mlfb=5SY6220-6"},"ai":{"faq":[{"question":"Will the 5SY6220-6 drop into a panel built around the 5SY4463-8?","answer":"Yes, both are 2-module-wide (36 mm) DIN-rail mount breakers with combined top/bottom terminals. The 5SY6220-6 carries a B curve and 20 A rating; the 5SY4463-8 has different ratings, so verify the trip curve and ampacity match your circuit. No rewiring required for the same footprint."},{"question":"What compliance documentation is available for the 5SY6220-6?","answer":"It is certified to IEC/EN 60898-1, IEC/EN 60947-2, and UL1077. The part is halogen-free and silicon-free. Specific RoHS/REACH declarations are available from Siemens upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY6220-6","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/5SY6220-6 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}}