{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY6302-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY6302-7","canonicalUrl":"https://aoctrl.com/siemens/5SY6302-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SY6302-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY6302-7 miniature circuit breaker, 3-pole, C-curve, 2 A rated, dual breaking capacity 6 kA (EN 60898) / 30 kA (IEC 60947-2).","salesMarkdown":"It's built for panel-mounted overcurrent and short-circuit protection in industrial control cabinets, mechanical engineering, and general distribution. ## Breaking capacity — what the dual rating means For DC circuits, the breaker is rated 15 kA at 60 V per IEC 60947-2 — useful if you're protecting a 60 VDC control bus or a battery-backed circuit in the same enclosure. ## Thermal derating — don't ignore it The 2 A rating holds at 35 °C ambient. At 40 °C it drops to 1.9 A, at 45 °C to 1.85 A, at 50 °C to 1.8 A, and at 55 °C to 1.75 A. Mounting position any, so you can lay it sideways in a shallow gland plate if needed. IP20 with conductors connected — fine inside a closed panel; not for wet or washdown zones. Pollution degree 3, overvoltage category III, so it's rated for the transient environment of a fixed industrial installation.","metaTitle":"Siemens 5SY6302-7 SENTRON MCB, 3P C-2A, 6kA/30kA","metaDescription":"Siemens 5SY6302-7 SENTRON miniature circuit breaker, 3-pole, C-curve 2 A, dual-rated 6 kA (EN 60898) / 30 kA (IEC 60947-2). Active production, sourced to order. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Depth":"76 mm","Width":"54 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Standard":"IEC / EN 60898-1, IEC / EN 60947-2 / UL1077","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":"2 A","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","at 35 °C rated value":"2 A","at 40 °C rated value":"1.9 A","at 45 °C rated value":"1.85 A","at 50 °C rated value":"1.8 A","at 55 °C rated value":"1.75 A","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":"6 kA","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":"1.2 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$26.29","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=482138&mlfb=5SY6302-7","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY6302-7/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SY6302-7 and how do I get a price?","answer":"The part is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time."},{"question":"What is 5SY6302-7's listed depth (76 mm) on this component line?","answer":"The depth is 76 mm; installation depth is 70 mm."},{"question":"What is 5SY6302-7's listed width (54 mm) on this component line?","answer":"The width is 54 mm, which corresponds to 3 modular width units on a DIN rail."},{"question":"Will 5SY6302-7 drop into a panel that was specified around 5SY4140-7 without rewiring?","answer":"Both are 3-pole SENTRON MCBs on the same DIN-rail footprint, so the mechanical fit is the same. But the 5SY4140-7 has a different current rating and possibly a different breaking capacity — verify the load and fault level before swapping."},{"question":"What compliance documentation does this brand provide for 5SY6302-7 (RoHS, REACH, UL, IEC)?","answer":"The breaker is certified to IEC/EN 60898-1 and IEC/EN 60947-2 / UL1077. It is halogen-free and silicon-free, which supports RoHS and REACH compliance."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY6302-7","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/5SY6302-7 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}