{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU9604-1KK40","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU9604-1KK40","canonicalUrl":"https://aoctrl.com/siemens/5SU9604-1KK40","factsUrl":"https://aoctrl.com/api/mcp/products/5SU9604-1KK40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU9 series, RCD-operated circuit breaker (RCBO), 40 A rated, 10 kA breaking capacity, C-curve, 1P+N, 18 mm wide, IP20.","salesMarkdown":"The Siemens 5SU9604-1KK40 is a 1P+N RCD-operated circuit breaker (RCBO) from the SENTRON 5SU9 family, combining overcurrent and residual-current protection in a single 18 mm-wide module. It's rated 40 A at 30 °C with a C tripping characteristic, meaning it handles moderate inrush from motor or lighting loads without nuisance tripping, and it clears faults up to 10 kA per EN 60898 and IEC 60947-2. The 1P+N configuration protects one live conductor and switches the neutral, so it fits single-phase final subcircuits in distribution boards. The 40 A rating is at 30 °C ambient; at 40 °C it's 37.6 A, at 45 °C it's 36.4 A, and at 55 °C it's 32.4 A — so if your panel runs warm, you need to account for the derating. The 18 mm width (1 width unit) keeps the rail density high — 18 modules per 360 mm DIN rail.","metaTitle":"Siemens 5SU9604-1KK40 SENTRON RCBO, 40 A, 10 kA, Type C, 1P+","metaDescription":"Siemens SENTRON 5SU9604-1KK40 RCD-operated circuit breaker, 40 A rated, 10 kA breaking capacity per EN 60898, C-curve, 1P+N, 18 mm wide. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"77 mm","Solid":"0.75 ... 35 mm²","Width":"18 mm","Height":"125 mm","Maximum":"0.75 W","Stranded":"0.75 ... 35 mm²","at 30 Cel":"40 A","at 40 Cel":"37.6 A","at 45 Cel":"36.4 A","at 50 Cel":"34.8 A","at 55 Cel":"32.4 A","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":"40 A","Tripping characteristic class":"C","acc. to EN 60898 / rated value":"10 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":"10 kA","Product feature / Touch protection":"Yes","Supply voltage frequency / rated value":"50 Hz","Tripping residual current / rated value":"300 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,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/d88060ba29ac75cc142a496945fcbe36.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=629438&mlfb=5SU9604-1KK40","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU9604-1KK40/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 5SU9604-1KK40 and get a price?","answer":"We source this RCBO to order against an RFQ. Availability and current pricing are confirmed at quote time — submit an inquiry for a firm quote."},{"question":"Will the 5SU9604-1KK40 drop into a panel designed for the 5SU9304-1KK32?","answer":"Yes — both are 18 mm wide, 70 mm installation depth, 1P+N RCBOs from the same 5SU9 family. The 5SU9604-1KK40 is a 40 A C-curve; the 5SU9304-1KK32 is a 32 A C-curve. No rewiring of the DIN rail or enclosure is needed, just verify the load current matches the higher rating."},{"question":"What is the depth of the 5SU9604-1KK40?","answer":"Overall depth is 77 mm; installation depth (behind the panel face) is 70 mm."},{"question":"What conductor sizes does the 5SU9604-1KK40 accept?","answer":"Solid conductors from 0.75 to 35 mm² and stranded conductors from 0.75 to 35 mm²."},{"question":"What compliance documentation does Siemens provide for the 5SU9604-1KK40?","answer":"The part is halogen-free and silicon-free. It carries the EN 60898 and IEC 60947-2 ratings for breaking capacity, and it's designed to overvoltage category III. For specific RoHS/REACH/UL declarations, the manufacturer's documentation is available on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU9604-1KK40","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/5SU9604-1KK40 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}}