{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4302-7CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4302-7CC","canonicalUrl":"https://aoctrl.com/siemens/5SY4302-7CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4302-7CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY4302-7CC miniature circuit breaker, 3-pole, 2 A, tripping characteristic C, breaking capacity 10 kA acc. to EN 60898, 5 kA acc. to UL 1077.","salesMarkdown":"## 2 A C-Curve MCB — Panel Fit and Thermal Reality The Siemens 5SY4302-7CC is a SENTRON miniature circuit breaker rated 2 A with a C-curve trip characteristic, meaning it handles moderate inrush from motor starters and small transformers without nuisance tripping — typical for general-purpose branch circuits in control panels. The 10 kA breaking capacity per EN 60898 covers most industrial panel fault levels; where UL 1077 applies, the interrupting rating is 5 kA. Three modular-width units (54 mm wide) snap onto the DIN rail with the quick-assembly system, and the 70 mm installation depth leaves clearance behind the gland plate. Thermal derating is baked into the spec: at 40 °C the breaker carries 1.91 A, at 50 °C it drops to 1.81 A, and at 55 °C it's 1.75 A. If your enclosure runs hot — say near a drive or transformer — size the load against the derated figure, not the 2 A nameplate. ## Mounting and Environment Mounts in any position — no derating for orientation. The IP20 rating (with connected conductors) and touch-protection design mean it's suited for enclosed panels in mechanical engineering and industrial environments. Pollution degree 3 and overvoltage category III cover most factory-floor conditions. Vibration resistance per IEC 60068-2-6: ±1 mm at 5–25 Hz, 50 m/s² at 25–150 Hz.","metaTitle":"Siemens 5SY4302-7CC SENTRON MCB, 2A C-Curve, 3-Pole, 10kA IE","metaDescription":"Siemens 5SY4302-7CC SENTRON miniature circuit breaker, 2A C-curve, 3-pole, 10kA IEC/5kA UL. Active production. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["3-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"54 mm","title":"5SY4302-7CC","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 10kA, 3-pole, C, 2A","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","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"3","Product Designation":"Miniature circuit breaker","acc. to IEC 81346-2":"F","at AC / rated value":"2 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","at 35 °C / rated value":"2 A","at 40 °C / rated value":"1.91 A","at 45 °C / rated value":"1.86 A","at 50 °C / rated value":"1.81 A","at 55 °C / rated value":"1.75 A","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","Number Of Modular Width Units":"3","Tripping Characteristic Class":"C","acc. to EN 60898 / rated value":"10 kA","Position / Of Power Supply Cord":"Any","Product Feature / Touch Protection":"Yes","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 AC / acc. to UL 1077 and CSA C22.2 No.235":"5 kA","vibration resistance / acc. to IEC 60068-2-6":"±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz","Product Component / Neutral Conductor Switching":"No","with multi-phase operation / at AC / rated value":"440 V","operating voltage / at DC / rated value / maximum":"72 V","with single-phase operation / at AC / rated value":"440 V","Mechanical Service Life (Switching Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/fa78af3c2f289bf26522d4194aac2cd5.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=290160&mlfb=5SY4302-7CC"},"ai":{"faq":[{"question":"Where can I buy 5SY4302-7CC and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing."},{"question":"Will 5SY4302-7CC drop into a panel specified around 5SY4301-7CV without rewiring?","answer":"Both are 3-pole SENTRON MCBs with the same modular width (3 units) and DIN-rail quick-assembly system, so the mechanical fit is identical. The 5SY4302-7CC is a 2 A C-curve; the 5SY4301-7CV is a 1 A C-curve. If the branch circuit load is ≤1 A, the 2 A breaker provides a higher trip threshold — verify the load current and coordination before substitution."},{"question":"What compliance documentation does this brand provide for 5SY4302-7CC?","answer":"The part carries IEC 60898 and UL 1077 / CSA C22.2 No. 235 ratings. It is halogen-free and silicon-free. Standard compliance documentation (RoHS, REACH, CE) is available from the manufacturer."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4302-7CC","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/5SY4302-7CC 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}}