{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU9404-0KK16","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU9404-0KK16","canonicalUrl":"https://aoctrl.com/siemens/5SU9404-0KK16","factsUrl":"https://aoctrl.com/api/mcp/products/5SU9404-0KK16","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU9 series, RCD-operated circuit breaker (RCBO), 16 A, Type B, 1P+N, 10 kA, AC fault current.","salesMarkdown":"The Siemens 5SU9404-0KK16 is a SENTRON 5SU9-series RCD-operated circuit breaker — an RCBO combining overcurrent and residual current protection in a single 18 mm wide unit. ## Current derating and ambient limits At 40 °C it derates to 15.04 A, at 45 °C to 14.56 A, at 50 °C to 13.92 A, and at 55 °C to 12.96 A. If the panel ambient exceeds 45 °C, the RCBO still functions but the continuous current must be reduced per the derating curve — a consideration for sealed enclosures or high-density DIN-rail layouts. ## Installation and wiring Supply can enter from either top or bottom. Overvoltage category III, energy limiting class 3, and touch protection are built in. Halogen-free and silicon-free construction.","metaTitle":"Siemens 5SU9404-0KK16 SENTRON RCBO, 16A, Type B, 10kA","metaDescription":"Siemens 5SU9404-0KK16 SENTRON RCBO, 16 A rated, Type B trip curve, 10 kA breaking capacity (EN 60898 / IEC 60947-2). 1P+N, AC fault current. Active production. Quoted to order.","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":"5SU9404-0KK16","Height":"125 mm","Maximum":"0.75 W","Stranded":"0.75 ... 35 mm²","at 30 Cel":"16 A","at 40 Cel":"15.04 A","at 45 Cel":"14.56 A","at 50 Cel":"13.92 A","at 55 Cel":"12.96 A","description":"RCBO, 10 kA, 1P+N, Type AC, 100 mA, B char., In: 16 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":"16 A","Tripping characteristic class":"B","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":"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/a76e105d5b113f5e536452d33c2e8b8a.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=629407&mlfb=5SU9404-0KK16"},"ai":{"faq":[{"question":"Where can I buy 5SU9404-0KK16 and how do I get a price?","answer":"The 5SU9404-0KK16 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is 5SU9404-0KK16's listed depth?","answer":"The overall depth is 77 mm; installation depth is 70 mm."},{"question":"What conductor sizes does 5SU9404-0KK16 accept?","answer":"It accepts solid and stranded conductors from 0.75 mm² up to 35 mm²."},{"question":"What compliance documentation does Siemens provide for 5SU9404-0KK16?","answer":"Siemens provides RoHS and REACH declarations of conformity for the SENTRON 5SU9 series; the part is halogen-free and silicon-free. Breaking capacity is certified to EN 60898 and IEC 60947-2."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU9404-0KK16","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/5SU9404-0KK16 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}}