{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU9406-0KK10","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU9406-0KK10","canonicalUrl":"https://aoctrl.com/siemens/5SU9406-0KK10","factsUrl":"https://aoctrl.com/api/mcp/products/5SU9406-0KK10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU9406-0KK10, RCD-operated circuit breaker, 10 A, B curve, 6 kA, 1P+N, 18 mm.","salesMarkdown":"The Siemens SENTRON 5SU9406-0KK10 is a combined RCD and miniature circuit breaker (RCBO) in a single 18 mm wide module — one width unit on the DIN rail. It protects against both overcurrent/short-circuit and earth leakage in a single device, saving a slot in the panel compared to separate MCB + RCD. The 10 A rating at 30 °C is the headline number, but the derating curve matters more in a warm panel: at 40 °C it's 9.4 A, at 45 °C it's 9.1 A, at 50 °C it's 8.7 A, and at 55 °C it's 8.1 A. This is a 1P+N device — it switches the line conductor and breaks the neutral, but the neutral pole is not protected against overcurrent. The RCD element is type AC, meaning it detects sinusoidal AC earth fault currents only. For pulsating DC or smooth DC fault currents (common with VFDs, EV chargers, or modern electronics), you'd need type A or F. The 18 mm width (one width unit) means it occupies a single slot in a consumer unit or distribution board. Accepts solid or stranded conductors from 0.75 up to 35 mm² — covers everything from 1.5 mm² lighting circuits up to 10 mm² submains. Supply can enter from top or bottom, which simplifies busbar layout. IP20 when installed in a distribution board with conductors connected — not for wet locations.","metaTitle":"Siemens 5SU9406-0KK10 SENTRON RCD Circuit Breaker, 10 A B Cu","metaDescription":"Siemens 5SU9406-0KK10 SENTRON RCD-operated circuit breaker, 10 A rated current, B tripping characteristic, 6 kA breaking capacity, 1P+N, 18 mm wide. Active production. Sourced to o","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"77 mm","Solid":"0.75 ... 35 mm²","Width":"18 mm","title":"5SU9406-0KK10","Height":"125 mm","Maximum":"0.75 W","Stranded":"0.75 ... 35 mm²","at 30 Cel":"10 A","at 40 Cel":"9.4 A","at 45 Cel":"9.1 A","at 50 Cel":"8.7 A","at 55 Cel":"8.1 A","description":"RCBO, 6 kA, 1P+N, Type AC, 100 mA, B char., In: 10 A, Un AC: 230 V, pigtail 600 mm, solid N","Halogen-Free":"Yes","Silicon-Free":"Yes","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 ... +45 °C","Product designation":"RCD-operated circuit breaker","Protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage category":"III","Design of the product":"Instantaneous","Energy limiting class":"3","Number of width units":"1","Type of fault current":"AC","Number of poles / Note":"1P+N","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","circuit-breaker / Design":"5SU9","Current / at AC / rated value":"10 A","Tripping characteristic class":"B","acc. to EN 60898 / rated value":"6 kA","For Testing Equipment / Minimum":"125 V","Position / of power supply cord":"Either top or bottom","Number of poles / with protection":"1","acc. to IEC 60947-2 / rated value":"6 kA","Product feature / Touch protection":"Yes","Supply voltage frequency / rated value":"50 Hz","Tripping residual current / rated value":"100 mA","Influence of the surrounding temperature":"Max. 95% humidity","Surge current resistance / at (8/20) μs":"1 kA","Tightening torque / with screw-type terminals":"1.2 ... 2 N·m","Product function / neutral conductor switching":"No","Mechanical service life (switching cycles) / typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/83295fcf5dff4582c956a82238b55127.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=629419&mlfb=5SU9406-0KK10"},"ai":{"faq":[{"question":"Where can I buy the 5SU9406-0KK10 and get a price?","answer":"It's sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing — no stock count or price is published here."},{"question":"What conductor sizes does the 5SU9406-0KK10 accept?","answer":"Both solid and stranded conductors from 0.75 mm² up to 35 mm². That covers 1.5 mm² lighting circuits through 10 mm² submains."},{"question":"What compliance documentation is available for this RCBO?","answer":"It carries approvals per EN 60898 and IEC 60947-2, with a 6 kA breaking capacity under both standards. It's halogen-free and silicon-free. Touch protection is provided. For RoHS/REACH declarations, check the Siemens SENTRON documentation package for the 5SU9 series."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU9406-0KK10","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/5SU9406-0KK10 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}