{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY7220-8CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY7220-8CC","canonicalUrl":"https://aoctrl.com/siemens/5SY7220-8CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SY7220-8CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY7220-8CC miniature circuit breaker, 2-pole, D tripping characteristic, 20 A rated current, 400 V AC, 25 kA breaking capacity per IEC 60947-2, 5 kA per UL 1077.","salesMarkdown":"## Siemens 5SY7220-8CC — 2-pole D-curve MCB for industrial branch circuits The Siemens 5SY7220-8CC is a 2-pole miniature circuit breaker from the SENTRON 5SY7 series, rated 20 A at 400 V AC with a D tripping characteristic. It snaps onto a 36 mm wide (2 MW) DIN rail and accepts solid or stranded conductors from 0.75 to 35 mm² at the screw terminals. The D tripping characteristic (magnetic trip at 10–20× rated current) means this breaker holds through the short-duration inrush of a motor or transformer without opening, then clears a hard fault fast. The 25 kA IEC 60947-2 rating (5 kA UL 1077) gives you the SCCR headroom for most industrial distribution boards — if your available fault current exceeds 25 kA, you need a current-limiting upstream device. The breaker is touch-protected (IP20 with conductors connected) and rated for ambient temperatures from -25 to +55 °C. ## Mounting and wiring — DIN-rail fit and terminal details The 2-pole unit occupies 36 mm (2 width units). Screw terminals accept solid or stranded copper from 0.75 to 35 mm²; tightening torque is 2.5 to 3.5 N·m. Combined terminals (top and bottom) allow busbar or ring-lug connections. The breaker is sealable for lockout/tagout. Halogen-free and silicon-free construction suits clean-room or sensitive environments.","metaTitle":"Siemens SENTRON 5SY7220-8CC MCB, 2P D 20A, 25 kA IEC","metaDescription":"Siemens SENTRON 5SY7220-8CC miniature circuit breaker, 2-pole, D-curve, 20 A, 400 V AC, 25 kA IEC 60947-2, 5 kA UL 1077. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Solid":"0.75 ... 35 mm²","Width":"36 mm","title":"5SY7220-8CC","Height":"90 mm","Sealable":"Yes","Stranded":"0.75 ... 35 mm²","Rated Value":"50/60 Hz","description":"Miniature circuit breaker 400 V 15kA, 2-pole, D, 20A","Halogen-Free":"Yes","Silicon-Free":"Yes","Mounting type":"Quick assembly system","During Storage":"-40 ... +75 °C","Number of poles":"2","Type of voltage":"AC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Ambient temperature":"-25 ... +55 °C","Product designation":"Miniature circuit breaker","Protection class IP":"IP20, with connected conductors","at AC / rated value":"400 V","Overvoltage category":"III","Combined Terminal Top":"Yes","Number of width units":"2","Number of poles / Note":"2P","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","Combined Terminal Bottom":"Yes","circuit-breaker / Design":"5SY7CC","Suitability for operation":"Mechanical engineering / industry","Current / at AC / rated value":"20 A","Tripping characteristic class":"D","at DC / rated value / maximum":"72 V","Position / of power supply cord":"Any","acc. to IEC 60947-2 / rated value":"25 kA","Product feature / Touch protection":"Yes","Influence of the surrounding temperature":"max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C","at AC / acc. to UL 1077 and CSA C22.2 No.235":"5 kA","Tightening torque / with screw-type terminals":"2.5 ... 3.5 N·m","Product function / neutral conductor switching":"No","with multi-phase operation / at AC / rated value":"440 V","with single-phase operation / at AC / rated value":"440 V","Mechanical service life (switching cycles) / typical":"10 000","Tightening torque [lbf·in] / with screw-type terminals":"22 ... 31 lbf·in"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/7967413b27dd3d8b1f0520c4b5a6109b.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=436207&mlfb=5SY7220-8CC"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 5SY7220-8CC?","answer":"Submit an RFQ through this listing. Pricing and availability are confirmed at quote time through our independent distribution channels — no stock figures or lead-time numbers are published here."},{"question":"Will 5SY7220-8CC drop into a panel that was specified around 5SY7140-8CC without rewiring?","answer":"The 5SY7220-8CC shares the same physical footprint (2 MW, 36 mm wide, same DIN-rail mounting) and terminal range as the 5SY7140-8CC. The difference is the D-curve vs C-curve and the higher 20 A rating vs 14 A. If the panel was wired for a C-curve 14 A breaker, the 20 A D-curve will fit mechanically but you must verify the load current and coordination — the D-curve holds through higher inrush, which may affect selectivity with downstream devices."},{"question":"What is 5SY7220-8CC's listed depth (76 mm) on this component line?","answer":"The overall depth is 76 mm; the installation depth behind the panel face is 70 mm."},{"question":"What is 5SY7220-8CC's listed solid (0.75... 35 mm²) on this component line?","answer":"The screw terminals accept solid copper conductors from 0.75 mm² up to 35 mm². Stranded conductors also range 0.75 to 35 mm²."},{"question":"What compliance documentation does this brand provide for 5SY7220-8CC (RoHS, REACH, UL, IEC)?","answer":"The breaker carries IEC 60947-2 (25 kA) and UL 1077 / CSA C22.2 No. 235 (5 kA) approvals. Standard RoHS and REACH declarations are available for the SENTRON series; the part is halogen-free and silicon-free."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY7220-8CC","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/5SY7220-8CC 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}}