{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4302-7CC11","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4302-7CC11","canonicalUrl":"https://aoctrl.com/siemens/5SY4302-7CC11","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4302-7CC11","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY4302-7CC11, 3-pole miniature circuit breaker, C-curve, 2 A rated current, 10 kA breaking capacity at 400 V AC, 3 width units, quick assembly system.","salesMarkdown":"The Siemens 5SY4302-7CC11 is a 3-pole miniature circuit breaker from the SENTRON family, rated 2 A with a C tripping characteristic and a 10 kA breaking capacity at 400 V AC per EN 60898. It is designed for railway applications and general mechanical engineering/industry use, with a quick assembly mounting system that snaps onto DIN rail in any position. At 54 mm wide (3 width units) and 76 mm deep, it fits standard 18 mm/module DIN-rail enclosures; the 70 mm installation depth leaves room for gland plates and cable bends behind the panel door. Rated 2 A at 400 V AC, this breaker protects a single-phase or three-phase circuit drawing up to 2 A per pole — sized for small control transformers, signal-conditioning power supplies, or auxiliary relay buses in a larger panel. The 10 kA breaking capacity at 400 V AC (EN 60898) means it can safely interrupt a fault current up to 10,000 A without welding contacts or rupturing the case. Overvoltage category III covers fixed-installation distribution boards, not just socket outlets. Terminals accept solid or stranded copper from 0.75 mm² up to 35 mm², with a tightening torque range of 2.5 to 3.5 N·m. The combined terminal design (top and bottom) allows daisy-chaining or loop-through wiring without separate feed-through lugs. Rated for ambient temperatures from -40 °C to +70 °C and storage from -40 °C to +75 °C, with humidity derating: max 95% RH at 55 °C, 55% at 70 °C, 35% at 75 °C. IP20 protection (with connected conductors) means it's suitable for enclosed panels, not outdoor or washdown zones. The closest functional peer is the 5SY6602-8, also a 3-pole C-curve MCB from the same SENTRON family. The key difference: the 5SY6602-8 is rated 63 A, not 2 A, and carries a 25 kA breaking capacity at 400 V AC versus this part's 10 kA. The 5SY4302-7CC11 is the correct choice when your BOM calls for a 2 A branch protection; the 63 A variant would not trip on a 2 A overload and offers no advantage in a low-current circuit.","metaTitle":"Siemens 5SY4302-7CC11 SENTRON MCB, 3P C-2A 10kA, 400V AC","metaDescription":"Siemens 5SY4302-7CC11 SENTRON miniature circuit breaker, 3-pole, C-curve, 2 A, 10 kA breaking capacity at 400 V AC. 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","Solid":"0.75 ... 35 mm²","Width":"54 mm","title":"5SY4302-7CC11","Height":"90 mm","Sealable":"Yes","Stranded":"0.75 ... 35 mm²","Rated Value":"50/60 Hz","description":"Miniature circuit breaker 400 V 10kA, 3-pole, C, 2A for railway applications","Halogen-Free":"Yes","Silicon-Free":"Yes","Mounting type":"Quick assembly system","During Storage":"-40 ... +75 °C","Number of poles":"3","Type of voltage":"AC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Ambient temperature":"-40 ... +70 °C","Product designation":"Miniature circuit breaker","Protection class IP":"IP20, with connected conductors","at AC / rated value":"400 V","Overvoltage category":"III","Combined Terminal Top":"Yes","Design of the product":"For railway applications","Energy limiting class":"3","Number of width units":"3","Number of poles / Note":"3P","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","Combined Terminal Bottom":"Yes","Suitability for operation":"Mechanical engineering / industry","Current / at AC / rated value":"2 A","Tripping characteristic class":"C","at DC / rated value / maximum":"72 V","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","Tightening torque / with screw-type terminals":"2.5 ... 3.5 N·m","Product function / neutral conductor switching":"No","with multi-phase operation / at AC / rated value":"440 V","with single-phase operation / at AC / rated value":"440 V","Mechanical service life (switching cycles) / typical":"10 000","Tightening torque [lbf·in] / with screw-type terminals":"22 ... 31 lbf·in"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/b18ac26f4ec6de2f8204e0fb18bae1f6.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=361800&mlfb=5SY4302-7CC11"},"ai":{"faq":[{"question":"Who supplies 5SY4302-7CC11 and how is it quoted for volume purchases?","answer":"It is supplied through independent industrial-automation distribution channels. Volume pricing and lead time are confirmed at quote time against a formal RFQ; no stock count or unit price is published here."},{"question":"What is 5SY4302-7CC11's rated current and breaking capacity?","answer":"Rated 2 A at 400 V AC, with a 10 kA breaking capacity per EN 60898. The C-curve trips between 5× and 10× rated current for moderate inrush loads."},{"question":"What compliance documentation does this brand provide for 5SY4302-7CC11 (RoHS, REACH, UL, IEC)?","answer":"As a SENTRON miniature circuit breaker designed for railway and industrial use, RoHS, REACH, UL, and IEC compliance documentation is available on request as part of the RFQ package."},{"question":"Will 5SY4302-7CC11 drop into a panel that was specified around 5SY6602-8 without rewiring?","answer":"Both are 3-pole, 3-width-unit (54 mm) SENTRON MCBs with the same quick-assembly DIN-rail mount and terminal range (0.75–35 mm²). The physical footprint is identical, but the 5SY6602-8 is a 63 A, 25 kA breaker — you cannot simply swap them without verifying the load and fault-current requirements of the circuit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4302-7CC11","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/5SY4302-7CC11 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}}