{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4508-7CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4508-7CC","canonicalUrl":"https://aoctrl.com/siemens/5SY4508-7CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4508-7CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY4508-7CC, miniature circuit breaker, 2-pole (1P+N), 8 A rated, C characteristic, 10 kA IEC, 5 kA UL, IP20.","salesMarkdown":"The Siemens 5SY4508-7CC is a SENTRON miniature circuit breaker (MCB) — 2-pole 1P+N, rated 8 A with a C tripping characteristic. The 10 kA breaking capacity at 230 V AC (per EN 60898) tells you it can safely interrupt a fault up to that level without welding contacts or cascading upstream. UL 1077 listing at 5 kA covers North American panel acceptance. Snaps onto DIN rail via the quick-assembly system — 36 mm wide (2 width units), 76 mm deep, 90 mm tall. Any mounting position works; ambient range -25 to +55 °C, storage -40 to +75 °C. IP20 with conductors connected means it lives inside a closed panel, not on the washdown floor. Terminal accepts 0.75 to 35 mm² solid or stranded copper; tightening torque 2.5 to 3.5 N·m on the screw terminals. ## Key ratings — the so-what The C-curve (tripping characteristic class C) means magnetic trip occurs between 5 and 10 times In — so 40 to 80 A instantaneous — which suits mixed resistive-inductive loads like small motors, pumps, and control transformers. The 10 kA IEC breaking capacity is the maximum fault current it can safely interrupt at 230 V; the 5 kA UL 1077 rating covers the same function under North American panel standards.","metaTitle":"Siemens 5SY4508-7CC SENTRON MCB, 8A C-curve 2-pole 10kA","metaDescription":"Siemens 5SY4508-7CC SENTRON miniature circuit breaker, 8A rated, C tripping characteristic, 1P+N, 10kA IEC breaking capacity, 5kA UL. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Solid":"0.75 ... 35 mm²","Width":"36 mm","Height":"90 mm","Sealable":"Yes","Stranded":"0.75 ... 35 mm²","Rated Value":"50/60 Hz","Halogen-Free":"Yes","Silicon-Free":"Yes","Mounting type":"Quick assembly system","During Storage":"-40 ... +75 °C","Number of poles":"2","Type of voltage":"AC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Ambient temperature":"-25 ... +55 °C","Product designation":"Miniature circuit breaker","Protection class IP":"IP20, with connected conductors","at AC / rated value":"230 V","Overvoltage category":"III","Combined Terminal Top":"Yes","Energy limiting class":"3","Number of width units":"2","Number of poles / Note":"1P+N","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","Combined Terminal Bottom":"Yes","circuit-breaker / Design":"5SY4CC","Suitability for operation":"Mechanical engineering / industry","Current / at AC / rated value":"8 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","at AC / acc. to UL 1077 and CSA C22.2 No.235":"5 kA","Tightening torque / with screw-type terminals":"2.5 ... 3.5 N·m","Product function / neutral conductor switching":"Yes","with single-phase operation / at AC / rated value":"250 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,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/866f25b226e7a9a96b362a0295b3c604.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=94296&mlfb=5SY4508-7CC","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY4508-7CC/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SY4508-7CC and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead-time estimate."},{"question":"What is the breaking capacity of 5SY4508-7CC?","answer":"10 kA at 230 V AC per EN 60898, and 5 kA per UL 1077 / CSA C22.2 No.235. That covers both IEC and North American panel coordination requirements."},{"question":"What wire sizes does the 5SY4508-7CC accept?","answer":"Solid and stranded copper from 0.75 mm² up to 35 mm². The screw terminals require a tightening torque of 2.5 to 3.5 N·m."},{"question":"Will 5SY4508-7CC drop into a panel specified for 5SY7140-8CC?","answer":"Both are SENTRON 2-module MCBs on the same DIN-rail footprint, so mechanical fit is the same. The deciding factor is the rating — 5SY4508-7CC is 8 A C-curve, while 5SY7140-8CC is a different rating/characteristic. Check your BOM line current and trip curve before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4508-7CC","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/5SY4508-7CC 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}}