{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU9404-1KK10","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU9404-1KK10","canonicalUrl":"https://aoctrl.com/siemens/5SU9404-1KK10","factsUrl":"https://aoctrl.com/api/mcp/products/5SU9404-1KK10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU9404-1KK10, RCD-operated circuit breaker (RCBO), 10 A rated current, 10 kA breaking capacity (EN 60898), tripping characteristic C, 1P+N, 18 mm width, IP20.","salesMarkdown":"The Siemens SENTRON 5SU9404-1KK10 is an RCD-operated circuit breaker (RCBO) — it combines overcurrent protection and residual current detection in a single 18 mm wide module. The 10 A rating is at 30 °C ambient; at 40 °C it derates to 9.4 A, at 45 °C to 9.1 A, at 50 °C to 8.7 A, and at 55 °C to 8.1 A. If the panel runs warm — common in a crowded DIN-rail enclosure — the actual continuous current the RCBO can carry without nuisance tripping is lower than the label. It is a 1P+N device (switched phase, solid neutral) that detects AC-type fault currents only — not pulsed DC or smooth DC. If the downstream load includes variable-speed drives, LED drivers, or any rectifier front end, an AC-type RCD may not trip on the residual DC content; that application calls for a Type A or Type B RCBO. Occupies one 18 mm width unit on a standard DIN rail. The power supply can enter from either the top or bottom, which simplifies busbar alignment in pre-wired boards. Touch protection is built into the terminals. IP20 rating applies only when the distribution board is installed and conductors are connected — the RCBO itself is not splash-proof. Mounting position is unrestricted.","metaTitle":"Siemens SENTRON 5SU9404-1KK10 RCBO, 10 A, 10 kA, Type C, 1P+","metaDescription":"Siemens SENTRON 5SU9404-1KK10 RCD-operated circuit breaker (RCBO), 10 A rated, 10 kA breaking capacity (EN 60898), tripping characteristic C, 1P+N, 18 mm width, IP20. Current lifec","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":"5SU9404-1KK10","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, 10 kA, 1P+N, Type AC, 100 mA, C-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":"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":"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/8204d48dfdff7ddc1876fe71128b3e43.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=629413&mlfb=5SU9404-1KK10"},"ai":{"faq":[{"question":"How do I get pricing and availability for 5SU9404-1KK10?","answer":"This part is sourced and quoted to order against an RFQ. Submit an RFQ for current pricing and availability; the quote will reflect real-time market conditions."},{"question":"What is the depth of 5SU9404-1KK10?","answer":"The overall depth is 77 mm; the installation depth (into the panel) is 70 mm."},{"question":"What conductor sizes does 5SU9404-1KK10 accept?","answer":"Solid: 0.75 to 35 mm². Stranded: 0.75 to 35 mm²."},{"question":"Will 5SU9404-1KK10 drop into a panel specified around 5SY6008-7?","answer":"Both are 18 mm wide DIN-rail devices, so the mechanical footprint is the same. However, the 5SU9404-1KK10 is an RCBO (overcurrent + RCD), while the 5SY6008-7 is a miniature circuit breaker only. If the original design relied on a separate RCD, the RCBO replaces both in one module — but the wiring and neutral bar arrangement must be checked for the 1P+N topology."},{"question":"What compliance documentation does Siemens provide for 5SU9404-1KK10?","answer":"The part carries ratings per EN 60898 and IEC 60947-2. It is halogen-free and silicon-free. For specific RoHS, REACH, or UL documentation, request the manufacturer's declaration through the RFQ process."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU9404-1KK10","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/5SU9404-1KK10 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}}