{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY8301-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY8301-7","canonicalUrl":"https://aoctrl.com/siemens/5SY8301-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SY8301-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY8301-7, 3-pole miniature circuit breaker, C-curve, 70 kA interrupting capacity at 400 V AC (IEC 60947-2), 5 kA (UL 1077), 54 mm wide, 76 mm deep.","salesMarkdown":"## Siemens 5SY8301-7 — 3-pole C-curve MCB, 70 kA breaking capacity The Siemens 5SY8301-7 is a 3-pole miniature circuit breaker from the SENTRON family, with a C-curve trip characteristic and a rated breaking capacity of 70 kA at 400 V AC per IEC 60947-2. For DC circuits it carries a 15 kA rating at 60 V per IEC 60947-2, and under UL 1077 it is listed at 5 kA — so the same part works in IEC-spec panels and UL-recognized supplementary protection applications, though the UL rating is lower and governs the North American installation limit. ## Panel fit and environmental tolerance The 5SY8301-7 occupies 3 modular width units (54 mm) on a DIN rail, with a depth of 76 mm and an installation depth of 70 mm. It mounts in any position, and the quick-assembly fastening system clips onto the rail without tools — standard for SENTRON MCBs. Ambient range spans -40 °C to 75 °C, with humidity tolerance up to 95% at 55 °C, derating to 35% at 75 °C. Vibration resistance per IEC 60068-2-6 is ±1 mm at 5–25 Hz and 50 m/s² at 25–150 Hz, so it holds up in machine-mounted panels on conveyors or compressors. The terminals accept supply from either top or bottom, and the unit is sealable for tamper-evident installations.","metaTitle":"Siemens 5SY8301-7 SENTRON MCB, 3P C-Curve, 70 kA IEC","metaDescription":"Siemens 5SY8301-7 SENTRON 3-pole MCB, C-curve, 70 kA at 400 V AC per IEC 60947-2, 5 kA UL 1077. Active production. Sourced to order against RFQ.","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":"5SY8301-7","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, 3P, C1","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","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 IEC 60947-2 rated value":"70 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/63a8eb011263fa207c7ef6ae446eda03.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=394172&mlfb=5SY8301-7"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SY8301-7?","answer":"70 kA at 400 V AC per IEC 60947-2, 15 kA at 60 V DC per IEC 60947-2, and 5 kA per UL 1077 for North American supplementary protection applications."},{"question":"Where can I buy 5SY8301-7?","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/5SY8301-7","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/5SY8301-7 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}}