{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4220-7CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4220-7CC","canonicalUrl":"https://aoctrl.com/siemens/5SY4220-7CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4220-7CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON miniature circuit breaker, 5SY4220-7CC, 2-pole, C-curve, 10 kA at 400 VAC per EN 60898, IP20, 2 MW wide.","salesMarkdown":"Its C-curve tripping characteristic (rated per EN 60898) means it handles inrush currents 5–10 times the rated current before tripping — the standard choice for motor-starter and transformer-fed loads where a brief surge is expected. Rated 10 kA breaking capacity at 400 VAC per EN 60898, with a 5 kA interrupting rating under UL 1077 and CSA C22.2 No.235 — so it safely clears a fault up to those levels without welding its contacts or cascading the failure upstream. Supplementary devices (shunt trips, auxiliary contacts, alarm switches) are installable on this breaker, so a panel can be built or retrofitted with remote-tripping or status-monitoring functions without swapping the base unit. ## Where it fits — dimensions and environment 76 mm deep, 36 mm wide, 90 mm tall. Installation depth 70 mm. ## Engineering judgement on the ratings The 10 kA SCCR at 400 VAC is the IEC rating that governs selectivity in a European-style distribution board. Under UL 1077 the same breaker is listed at 5 kA — a lower figure that reflects the different test protocol, not a defect. If your panel is built to UL 508A, coordinate the 5 kA figure with the upstream fault current. If the load is purely resistive (heaters, lighting) a B-curve would give better protection; if it is a large motor start, a D-curve might be needed. This is the middle ground.","metaTitle":"Siemens 5SY4220-7CC SENTRON MCB, 2-Pole, C-Curve, 10 kA","metaDescription":"Siemens 5SY4220-7CC SENTRON miniature circuit breaker, 2-pole, C-curve, 10 kA breaking capacity per EN 60898. 400 VAC, IP20. Current lifecycle. Quoted to order against RFQ — availa","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":"5SY4220-7CC","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 10kA, 2-pole, C, 20A","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":"400 V","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","Energy Limitation Class":"3","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","according to EN 60898 rated value":"10 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","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","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/c4750893257bf382253f0a9221e652f3.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=65074&mlfb=5SY4220-7CC"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4220-7CC","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/5SY4220-7CC 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}}