{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SJ6208-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SJ6208-7","canonicalUrl":"https://aoctrl.com/siemens/5SJ6208-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SJ6208-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SJ6 miniature circuit breaker, 2-pole, C-curve, 8 A rated, 400 V AC, 6 kA breaking capacity per EN 60898, 70 mm depth.","salesMarkdown":"The Siemens 5SJ6208-7 is a 2-pole miniature circuit breaker from the SENTRON 5SJ6 family, rated 8 A at 400 V AC with a C tripping characteristic — meaning it is designed for moderate inrush loads such as small motor circuits, lighting banks, and control transformers where the starting current exceeds the nominal rating but stays within the C-curve magnetic trip window (5–10× In). The 2-pole configuration switches both line conductors, which is required for single-phase 230 V circuits in many regions or for two-wire 400 V line-to-line loads. The IP20 finger-safe terminals (with conductors connected) meet the basic touch-protection requirement inside an enclosed panel. The terminal accepts solid or stranded conductors from 0.75 mm² up to 25 mm², which covers the full range of wire sizes typically used for an 8 A branch circuit (1.5 mm² to 4 mm² are common, but the 25 mm² upper limit accommodates a feed-through or daisy-chain application). Mounting position is unrestricted, so the breaker can be oriented vertically, horizontally, or upside-down on the rail without derating the thermal trip. The mechanical service life of 20 000 switching cycles is typical for an MCB in this class — adequate for routine isolation and fault clearing, but not intended for frequent load-break duty like a contactor.","metaTitle":"Siemens 5SJ6208-7 SENTRON MCB, 2-pole, C, 8A, 400V AC","metaDescription":"Siemens 5SJ6208-7 SENTRON miniature circuit breaker, 2-pole, C-curve, 8A, 400V AC, 6kA breaking capacity per EN 60898. Current lifecycle status. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Solid":"0.75 ... 25 mm²","Stranded":"0.75 ... 25 mm²","Rated Value":"50 Hz","Number of poles":"2","Type of voltage":"AC/DC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Protection class IP":"IP20, with connected conductors","Overvoltage category":"3","Energy limiting class":"3","Number of width units":"2","circuit-breaker / Design":"5SJ6","Current / at AC / rated value":"8 A","Tripping characteristic class":"C","Position / of power supply cord":"Any","Supply voltage / at AC / rated value":"400 V","Mechanical service life (switching cycles) / typical":"20 000"}},"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=433961&mlfb=5SJ6208-7","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SJ6208-7/alternatives.json"},"ai":{"faq":[{"question":"Will 5SJ6208-7 drop into a panel specified around 5SJ6216-6 without rewiring?","answer":"Yes, the mechanical footprint is identical — both are 2-pole, 2 width units, 70 mm depth, same terminal wire range (0.75–25 mm²) — so the 5SJ6208-7 fits the same DIN-rail position and busbar connection. No rewiring is needed for the physical swap, but the circuit protection values (8 A vs 16 A, C-curve vs B-curve) must match the load requirements."},{"question":"Where can I buy 5SJ6208-7 and how is it quoted?","answer":"The 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."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SJ6208-7","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/5SJ6208-7 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}}