{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4220-7CV","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4220-7CV","canonicalUrl":"https://aoctrl.com/siemens/5SY4220-7CV","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4220-7CV","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SY4220-7CV, 2-pole miniature circuit breaker, C-trip characteristic, 20 A rated at 35 °C, 15 kA breaking capacity per IEC/EN 60947-2, 36 mm wide, IP20 with conductors connected.","salesMarkdown":"## What the ratings mean for fit The 5SY4220-7CV is a 2-pole miniature circuit breaker with a C-trip characteristic, rated 20 A at 35 °C and 15 kA breaking capacity per IEC/EN 60947-2. The C-curve trips between 5 and 10 times rated current, so it handles moderate inrush from motor starters or transformer banks without nuisance opening — typical for mixed industrial loads in mechanical engineering and industry applications. The 15 kA SCCR at 440 V AC means it safely interrupts faults up to that level without cascading upstream, which is the figure that governs selectivity coordination in a distribution panel. Rated current derates with ambient temperature: 18.54 A at 40 °C, 17.76 A at 45 °C, 16.9 A at 50 °C, and 16.08 A at 55 °C. If the panel ambient runs above 40 °C, size the upstream protection for the derated value, not the 35 °C mark. ## Panel integration and mounting Width is 36 mm (2 modular units), depth 76 mm, height 90 mm. Mounts in any position on a DIN rail via the quick assembly system; installation depth behind the panel is 70 mm. IP20 with conductors connected — suitable for enclosed distribution boards, not open washdown zones. The top and bottom terminals accept combined wiring, and the housing is halogen-free and silicon-free, which matters if the panel serves a clean room or food line where outgassing is restricted.","metaTitle":"5SY4220-7CV MCB, 2-Pole C-20A, 15 kA IEC 60947-2","metaDescription":"5SY4220-7CV miniature circuit breaker, 2-pole C-curve 20 A, 15 kA breaking capacity per IEC/EN 60947-2. Current production. Quoted 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","Width":"36 mm","title":"5SY4220-7CV","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Standard":"IEC / EN 60947-2","description":"MCB Icu=15KA 400V 2P C20","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","Degree Of Pollution":"3","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":"18.54 A","at 45 °C rated value":"17.76 A","at 50 °C rated value":"16.9 A","at 55 °C rated value":"16.08 A","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","Supply Voltage Frequency Rated Value":"50/60 Hz","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","operating voltage at DC rated value maximum":"72 V","with multi-phase operation at AC rated value":"440 V","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","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":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/93bb065d6d11e99aeac71dc5fce08c22.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1531558&mlfb=5SY4220-7CV"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SY4220-7CV?","answer":"Rated 15 kA per IEC/EN 60947-2 at 440 V AC multi-phase operation."},{"question":"Where can I buy 5SY4220-7CV and how is it quoted?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4220-7CV","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/5SY4220-7CV 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}}