{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SP9425-7KC47","brand":"Siemens","brandSlug":"siemens","productSlug":"5SP9425-7KC47","canonicalUrl":"https://aoctrl.com/siemens/5SP9425-7KC47","factsUrl":"https://aoctrl.com/api/mcp/products/5SP9425-7KC47","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SP9 series, 5SP9425-7KC47 miniature circuit breaker, 4-pole, C-curve, 25 A rated, 50 kA breaking capacity per IEC 60947-2, 400 V AC, 50 Hz.","salesMarkdown":"The Siemens SENTRON 5SP9425-7KC47 is a 4-pole miniature circuit breaker rated 25 A with a C tripping characteristic, designed for 400 V AC / 50 Hz systems. Its 50 kA breaking capacity per IEC 60947-2 means it can safely interrupt fault currents up to that level without upstream cascading — critical for high-fault-capacity industrial panels where selectivity with upstream devices is a design requirement. ## Ratings and fit The C-curve (5–10× In magnetic trip) suits moderate inrush loads like motor starters, small transformers, and lighting banks — common in mixed-load distribution panels. The 4-pole version (4P) switches all three phases plus neutral, required for TN-S or TT systems where neutral isolation is needed. Solid and stranded conductors from 0.75 to 50 mm² (AWG 14–2) are accepted at the tunnel terminals, top and bottom. Terminal torque spec is 2.5–3.5 N·m (22–31 lbf·in). The 6 width units (approx. 108 mm on a DIN rail) and 92 mm installation depth fit standard 18 mm modular enclosures. ## Deployment context Mounts on standard DIN rail or via screw fixing; any mounting position is allowed. Ambient temperature range is –25 to +45 °C, with periodic excursions to +55 °C at 95% humidity. IP20 with connected conductors — suitable for enclosed panel use, not for wet or outdoor locations without a secondary enclosure.","metaTitle":"Siemens 5SP9425-7KC47 SENTRON MCB, 4P C 25 A, 50 kA IEC 6094","metaDescription":"Siemens 5SP9425-7KC47 SENTRON miniature circuit breaker, 4-pole, C-curve, 25 A, 50 kA breaking capacity per IEC 60947-2. Current production. Sourced to order against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Solid":"0.75 ... 50 mm²","Sealable":"Yes","Stranded":"0.75 ... 50 mm²","Halogen-Free":"Yes","Silicon-Free":"Yes","Mounting type":"Standard mounting rail and screw fixing","During Storage":"-40 ... +75 °C","Number of poles":"4","Type of voltage":"AC/DC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"92 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":"440 V","Overvoltage category":"3","Tunnel terminals top":"Yes","Design of the product":"5SP Miniature circuit breakers","Number of width units":"6","Number of poles / Note":"4P","Tunnel terminals bottom":"Yes","circuit-breaker / Design":"5SP9","Current / at AC / rated value":"25 A","Tripping characteristic class":"C","Position / of power supply cord":"Any","acc. to IEC 60947-2 / rated value":"50 kA","Product feature / Touch protection":"Yes","Supply voltage / at AC / rated value":"400 V","Supply voltage frequency / rated value":"50 Hz","Influence of the surrounding temperature":"Periodically +55°C, max. 95% humidity","Shock resistance / acc. to IEC 60068-2-27":"150m/s² at 11ms half-sine","Vibration resistance / acc. to IEC 60068-2-6":"50m/s² at 25 to 150Hz and 60m/s² at 35Hz (4sec)","Tightening torque / with screw-type terminals":"2.5 ... 3.5 N·m","Mechanical service life (switching cycles) / typical":"20 000","Tightening torque [lbf·in] / with screw-type terminals":"22 ... 31 lbf·in","AWG number / as coded connectable conductor cross section":"14 ... 2"}},"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=134677&mlfb=5SP9425-7KC47","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SP9425-7KC47/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SP9425-7KC47?","answer":"It is rated 50 kA at 400 V AC per IEC 60947-2. That rating governs its ability to clear high fault currents without rupturing — a key coordination figure for panel designers."},{"question":"What conductor sizes does 5SP9425-7KC47 accept?","answer":"Solid and stranded conductors from 0.75 to 50 mm² (AWG 14–2). Both top and bottom tunnel terminals accept the full range."},{"question":"Where can I buy 5SP9425-7KC47?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — no stock count or lead-time figure is published here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SP9425-7KC47","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/5SP9425-7KC47 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}}