{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY8220-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY8220-7","canonicalUrl":"https://aoctrl.com/siemens/5SY8220-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SY8220-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY8220-7, miniature circuit breaker, 2-pole, C characteristic, 30 kA at 400 V AC per IEC 60947-2, 2 MW units.","salesMarkdown":"## SENTRON 5SY8220-7 — 2-pole C-curve MCB for industrial branch circuits It occupies 2 modular width units (36 mm) on a DIN rail, rated to clear 30 kA at 400 V AC per IEC 60947-2 — that's the fault current it can safely interrupt without welding contacts or cascading upstream. For DC circuits it's rated 15 kA at 60 V, and under UL 1077 it carries a 5 kA interrupting rating. ## Standards and approvals — what the ratings certify This breaker carries dual certification: IEC/EN 60947-2 (the international standard for industrial circuit breakers) and UL 1077 (supplementary protector for North American panels). The UL 1077 rating of 5 kA at 400 V AC reflects the different test protocol for supplementary protectors; it's not a derating, it's a different standard. For DC circuits it's rated 15 kA at 60 V per IEC 60947-2. ## Panel integration — dimensions and mounting Width 36 mm (2 MW), depth 76 mm, height 90 mm. Installation depth 70 mm — the extra 6 mm beyond the body accounts for the terminal screws and wiring space. IP20 with connected conductors (finger-safe only when wired; not for wet environments). Sealable with a lockable cover for tamper-proof isolation. ## Environmental limits and service life Ambient temperature range -40 °C to +75 °C, but the humidity derating curve matters: max 95% RH at 55 °C, dropping to 55% at 70 °C and 35% at 75 °C. In a sealed cabinet near a heat source, that's the limit that governs — not the dry-air temperature spec. Vibration resistance per IEC 60068-2-6: ±1 mm at 5–25 Hz, 50 m/s² at 25–150 Hz. Mechanical service life 10,000 operating cycles typical — adequate for branch-circuit protection where the breaker is cycled infrequently; not rated for frequent switching duty.","metaTitle":"Siemens 5SY8220-7 SENTRON MCB, 2P C-Curve, 30 kA IEC","metaDescription":"Siemens 5SY8220-7 SENTRON miniature circuit breaker, 2-pole, C characteristic, 30 kA at 400 V AC per IEC 60947-2. Available to order — request a quote for current pricing and avail","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":"5SY8220-7","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Standard":"IEC / EN 60947-2 / UL1077","description":"Miniature circuit breaker 400 V D=70 mm 25 kA according to EN 60947-2, 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":"400 V","at DC rated value":"60 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","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 IEC 60947-2 rated value":"30 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":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/406af789845b8dc330ea96b7368d7676.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=183615&mlfb=5SY8220-7"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SY8220-7?","answer":"30 kA at 400 V AC per IEC 60947-2, 15 kA at 60 V DC per IEC 60947-2, and 5 kA at 400 V AC per UL 1077."},{"question":"What is the difference between 5SY8220-7 and 5SY4116-7CV?","answer":"The 5SY8220-7 is a 2-pole C-curve breaker rated 30 kA IEC, while the 5SY4116-7CV is a 1-pole C-curve breaker with a lower interrupting rating. The 5SY8220-7 will not drop into a panel specified for a single-pole breaker without rewiring the busbar and neutral arrangement."},{"question":"Where can I buy 5SY8220-7?","answer":"The 5SY8220-7 is available to order through independent distribution. Submit an RFQ for current pricing and availability — confirmed at quote time."},{"question":"What compliance documentation does 5SY8220-7 carry?","answer":"It is certified to IEC/EN 60947-2 and UL 1077. The construction is halogen-free and silicon-free. Specific RoHS/REACH declarations are available from the manufacturer upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY8220-7","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/5SY8220-7 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}}