{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SJ6150-6","brand":"Siemens","brandSlug":"siemens","productSlug":"5SJ6150-6","canonicalUrl":"https://aoctrl.com/siemens/5SJ6150-6","factsUrl":"https://aoctrl.com/api/mcp/products/5SJ6150-6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SJ6 miniature circuit breaker, 1-pole, B-characteristic, 50 A rated, 6 kA breaking capacity, 240 V AC, IP20.","salesMarkdown":"The 5SJ6150-6: The 50 A rating on a 1-pole footprint handles a 50 A resistive or lighting load on a 240 V AC single-phase circuit. The B-curve's 3–5x In trip window (150–250 A magnetic release) keeps it from dropping out on the small inrush of tungsten lamps or heating elements, but it's not meant for motor starting — that's C or D curve territory. The 6 kA breaking capacity (both EN 60898 and IEC 60947-2) tells you it can safely clear a hard short up to 6,000 A without welding its contacts or rupturing. The 60 V DC maximum rating means it can also serve a DC branch circuit up to that voltage, though the DC breaking performance is lower than the AC figure — don't assume 6 kA on DC. This breaker occupies 1 width unit (roughly 18 mm) on a DIN rail — standard 35 mm top-hat rail. The installation depth is 70 mm, which fits most enclosure backplates without crowding. It accepts solid or stranded conductors from 0.75 mm² up to 25 mm², so it can terminate anything from a 1.5 mm² lighting circuit to a 16 mm² feeder. The terminals are sealable for panel-lockout or tamper-evident tagging. Mounting position is any, which helps when the panel layout is tight. Halogen-free and silicon-free construction — useful in clean rooms or where outgassing could contaminate optics or contacts. Ambient temperature range is -20 to +45 °C, with periodic excursions to +55 °C and up to 95% humidity. Storage range is wider: -40 to +75 °C. The insulation voltage is rated 440 V AC, and overvoltage category 3 means it's designed for fixed-installation distribution boards, not for surge-prone outdoor drops. Vibration resistance per IEC 60068-2-6 is 50 m/s² at 25–150 Hz and 60 m/s² at 10–150 Hz — enough for industrial panel vibration but not for direct machine mounting without additional damping. Mechanical service life is 20,000 switching cycles typical.","metaTitle":"Siemens 5SJ6150-6 SENTRON MCB, 1-Pole B 50A 6kA","metaDescription":"Siemens 5SJ6150-6 SENTRON miniature circuit breaker, 1-pole, B-curve, 50 A, 6 kA per EN 60898/IEC 60947-2. 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":{"Solid":"0.75 ... 25 mm²","Sealable":"Yes","Stranded":"0.75 ... 25 mm²","Rated Value":"50 Hz","Halogen-Free":"Yes","Silicon-Free":"Yes","During Storage":"-40 ... +75 °C","Number of poles":"1","Type of voltage":"AC/DC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Ambient temperature":"-20 ... +45 °C","Product designation":"Miniature circuit breakers","Protection class IP":"IP20, with connected conductors","Overvoltage category":"3","Design of the product":"Miniature circuit breaker 5SJ6","Energy limiting class":"3","Number of width units":"1","Number of poles / Note":"1","circuit-breaker / Design":"5SJ6","Current / at AC / rated value":"50 A","Tripping characteristic class":"B","at DC / rated value / maximum":"60 V","acc. to EN 60898 / rated value":"6 kA","Position / of power supply cord":"Any","acc. to IEC 60947-2 / rated value":"6 kA","Product feature / Touch protection":"Yes","Supply voltage / at AC / rated value":"240 V","Influence of the surrounding temperature":"Periodically +55°C, max. 95% humidity","Insulation voltage / at AC / rated value":"440 V","Vibration resistance / acc. to IEC 60068-2-6":"50m/s² at 25 to 150Hz and 60m/s² at 10 to 150 Hz","with multi-phase operation / at AC / maximum":"440 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=418898&mlfb=5SJ6150-6","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SJ6150-6/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of this breaker?","answer":"6 kA per both EN 60898 and IEC 60947-2 — the standard interrupting rating for this class of miniature circuit breaker in residential and light commercial panels."},{"question":"What wire sizes does the 5SJ6150-6 accept?","answer":"Solid or stranded conductors from 0.75 mm² up to 25 mm² — covers everything from a 1.5 mm² lighting circuit to a 16 mm² feeder."},{"question":"Will the 5SJ6150-6 drop into a panel designed for the 5SJ6220-6?","answer":"Mechanically yes — both are 5SJ6 series, same 70 mm installation depth, same DIN-rail footprint. The difference is the 5SJ6220-6 is a 2-pole 20 A breaker; the 5SJ6150-6 is 1-pole 50 A. If the panel was wired for a 2-pole device, you'd need to re-terminate the neutral."},{"question":"Where can I buy the 5SJ6150-6?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or price is published here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SJ6150-6","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/5SJ6150-6 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}}