{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY7301-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY7301-7","canonicalUrl":"https://aoctrl.com/siemens/5SY7301-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SY7301-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON miniature circuit breaker, 5SY7301-7, 3-pole, C-curve, 15 kA per EN 60898 / 50 kA per IEC 60947-2, 400 V AC, IP20.","salesMarkdown":"Rated for 400 V AC (440 V max multi-phase) and 60 V DC, it carries a 15 kA breaking capacity per EN 60898 and a 50 kA rating per IEC 60947-2 — the higher figure is the one that matters for industrial fault-current coordination. The C-curve (5–10× In) handles motor-starting inrush and moderate inductive loads without nuisance tripping. ## Breaking capacity and standards — what the ratings mean The dual breaking-capacity rating is the key spec: 15 kA at 400 V AC per EN 60898 covers residential/commercial panel duty, while the 50 kA per IEC 60947-2 at 400 V AC is the industrial rating — it tells you this breaker can clear a fault on a high-capacity transformer or busway without welding its contacts. At DC (60–72 V) it's rated 15 kA per IEC 60947-2, which covers most battery-bank and UPS branch circuits. It also carries a UL 1077 / CSA C22.2 No. 235 listing at 5 kA, which qualifies it as a supplementary protector for North American panels where the main breaker provides the branch-circuit fault rating. The IEC/EN 60898-1 and IEC 60947-2 certifications cover the European and global installations. ## Physical fit and environmental range Dimensions: 90 mm high, 54 mm wide (3 MW), 76 mm deep, with a 70 mm installation depth behind the panel. The quick-assembly fastening system clips onto a DIN rail without tools. Ambient temperature range from -40 °C to +75 °C, with humidity derating above 55 °C (95% RH at 55 °C, tapering to 35% at 75 °C). Halogen-free and silicon-free construction, sealable for lockout/tagout.","metaTitle":"Siemens 5SY7301-7 SENTRON MCB, 3P C-Curve, 15kA/50kA","metaDescription":"Siemens 5SY7301-7 SENTRON miniature circuit breaker, 3-pole, C-curve, 15 kA (EN 60898) / 50 kA (IEC 60947-2) breaking capacity. Active production, sourced to order. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["3-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"54 mm","title":"5SY7301-7","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 15kA, 3-pole, C, 1A, D=70 mm","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"3P","Number Of Poles":"3","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","Energy Limitation Class":"3","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","Neutral Conductor Switching":"No","Number Of Modular Width Units":"3","Position Of Power Supply Cord":"Any","Tripping Characteristic Class":"C","according to EN 60898 rated value":"15 kA","according to IEC 60947-2 rated value":"50 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":"1.2 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/5668b541cecbf12e9381f72365e5051d.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=466357&mlfb=5SY7301-7"},"ai":{"faq":[{"question":"Where can I buy 5SY7301-7 and how do I get a price?","answer":"We source this part to order through independent distribution. Submit an RFQ for current pricing and availability — confirmed at quote time, no minimum order quantity."},{"question":"What is 5SY7301-7's listed depth (76 mm) on this component line?","answer":"The overall depth is 76 mm, with a 70 mm installation depth behind the panel face. That 6 mm difference accounts for the front of the breaker and the actuator."},{"question":"What is 5SY7301-7's listed width (54 mm) on this component line?","answer":"Width is 54 mm, which corresponds to 3 modular width units (18 mm per unit) on a standard DIN-rail panel."},{"question":"Will 5SY7301-7 drop into a panel that was specified around 5SY4304-7CV without rewiring?","answer":"The 5SY7301-7 is a 3-pole C-curve MCB, while the 5SY4304-7CV is a 4-pole C-curve MCB. The footprint differs — 54 mm vs 72 mm width — so it will not fit the same DIN-rail space without a different terminal block arrangement. The electrical ratings also differ; verify the required pole count and breaking capacity before substituting."},{"question":"What compliance documentation does this brand provide for 5SY7301-7 (RoHS, REACH, UL, IEC)?","answer":"The breaker is certified to IEC/EN 60898-1, IEC/EN 60947-2, and UL 1077 / CSA C22.2 No. 235. It is halogen-free and silicon-free. Standard Siemens declarations for RoHS and REACH are available on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY7301-7","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/5SY7301-7 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}}