{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY3008-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY3008-7","canonicalUrl":"https://aoctrl.com/siemens/5SY3008-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SY3008-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY3008-7 miniature circuit breaker, 1P+N, tripping characteristic C, 8 A rated current, 4.5 kA breaking capacity at 230 V AC, 18 mm width (1 MW).","salesMarkdown":"The Siemens 5SY3008-7 is a SENTRON miniature circuit breaker (MCB) with 1P+N poles, a C-curve tripping characteristic, and an 8 A rated current at 230 V AC. The 4.5 kA breaking capacity (per EN 60898) tells you it can safely interrupt a fault current up to that level at 230 V without welding contacts or cascading upstream. That's enough for most residential and light commercial distribution boards; if your prospective fault current is higher, you'd step to the 5SY6 series with 6 kA or 10 kA. Snaps onto standard DIN rail (mounting type: standard rail), any mounting position. Width is 18 mm — that's one modular unit (1 MW), so it occupies a single slot in a distribution board. Terminals accept solid or stranded copper from 0.75 mm² up to 16 mm², tightened to 2–2.5 N·m (17.7–22.1 lbf·in). The neutral is switched internally (product function: neutral conductor switching), so you don't need a separate neutral bar for the outgoing circuit. Ambient operating temperature range is -25 to +45 °C; storage range -40 to +75 °C. Overvoltage category III (distribution level). Sealable terminals are available (Sealable: Yes) for metering or utility-lock applications. Vibration resistance per IEC 60068-2-6 is confirmed.","metaTitle":"Siemens 5SY3008-7 SENTRON MCB, 1P+N, C 8 A, 4.5 kA","metaDescription":"Siemens 5SY3008-7 SENTRON miniature circuit breaker, 1P+N, C-curve 8 A, 4.5 kA breaking capacity at 230 V AC. 18 mm width, IP20. Current lifecycle stage. Sourced to order against R","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 ... 16 mm²","Width":"18 mm","Height":"90 mm","Minimum":"24 V","Sealable":"Yes","Stranded":"0.75 ... 16 mm²","Halogen-Free":"Yes","Silicon-Free":"Yes","Mounting type":"standard rail","During Storage":"-40 ... +75 °C","Type of voltage":"AC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Ambient temperature":"-25 ... +45 °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":"No","Energy limiting class":"3","Number of width units":"1","Number of poles / Note":"1P+N","acc. to DIN EN 81346-2":"F","Combined Terminal Bottom":"No","Current / at AC / rated value":"8 A","Tripping characteristic class":"C","acc. to EN 60898 / rated value":"4.5 kA","Position / of power supply cord":"Any","Product feature / Touch protection":"Yes","Vibration resistance / acc. to IEC 60068-2-6":"Yes","Tightening torque / with screw-type terminals":"2 ... 2.5 N·m","with single-phase operation / at AC / maximum":"250 V","Product function / neutral conductor switching":"Yes","Mechanical service life (switching cycles) / typical":"10 000","Tightening torque [lbf·in] / with screw-type terminals":"17.7 ... 22.1 lbf·in"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=331926&mlfb=5SY3008-7","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY3008-7/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SY3008-7 and get a price?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing confirmed at quote time."},{"question":"What's the difference between 5SY3008-7 and 5SY6008-7?","answer":"The 5SY6008-7 has a higher breaking capacity — 6 kA versus 4.5 kA at 230 V — but otherwise shares the same 1P+N, C 8 A rating, 18 mm width, and DIN-rail mounting. If your panel's prospective fault current exceeds 4.5 kA, the 5SY6008-7 is the drop-in upgrade without rewiring."},{"question":"What is the depth of 5SY3008-7?","answer":"Depth is 76 mm; installation depth is 70 mm."},{"question":"What wire sizes does 5SY3008-7 accept?","answer":"Solid or stranded copper from 0.75 mm² up to 16 mm²."},{"question":"Will 5SY3008-7 drop into a panel specified around 5SY6008-7?","answer":"Yes — same 18 mm width, same DIN-rail mounting, same 1P+N pole configuration. The only difference is breaking capacity (4.5 kA vs 6 kA). No rewiring needed if the fault level is within 4.5 kA."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY3008-7","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/5SY3008-7 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}}