{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU9104-1KK25","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU9104-1KK25","canonicalUrl":"https://aoctrl.com/siemens/5SU9104-1KK25","factsUrl":"https://aoctrl.com/api/mcp/products/5SU9104-1KK25","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU9104-1KK25, RCD-operated circuit breaker, 25 A rated at 30 °C, C-curve, 10 kA breaking capacity per EN 60898, 1P+N, 18 mm width, 77 mm depth.","salesMarkdown":"## Siemens SENTRON 5SU9104-1KK25 — RCD-operated circuit breaker, 25 A, C-curve, 10 kA The Siemens 5SU9104-1KK25 is a 1P+N RCD-operated circuit breaker from the SENTRON 5SU9 series, combining overcurrent and residual current protection in a single 18 mm wide unit. Rated 25 A at 30 °C with a C tripping characteristic, it clears faults up to 10 kA per EN 60898 and IEC 60947-2. The instantaneous design means no intentional time delay on the RCD element — it trips on residual AC fault currents immediately. Rated current derates with ambient temperature: 23.5 A at 40 °C, 22.75 A at 45 °C, 21.75 A at 50 °C, and 20.25 A at 55 °C. For a panel running at 40 °C ambient, the effective continuous load limit is 23.5 A — not the 25 A nameplate. Plan your branch circuit load accordingly. The 18 mm width (one width unit) fits standard DIN-rail enclosures. Depth is 77 mm, installation depth 70 mm. Halogen-free and silicon-free construction, with touch protection on the terminals. Energy limiting class 3. Overvoltage category III. Ambient operating range -25 to +45 °C; storage range -40 to +75 °C.","metaTitle":"Siemens 5SU9104-1KK25 SENTRON RCD Circuit Breaker, 25 A, 10","metaDescription":"Siemens SENTRON 5SU9104-1KK25 RCD-operated circuit breaker, 25 A rated, 10 kA breaking capacity, C-curve, 1P+N, 18 mm wide. Active lifecycle, sourced 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":"5SU9104-1KK25","Height":"125 mm","Maximum":"0.75 W","Stranded":"0.75 ... 35 mm²","at 30 Cel":"25 A","at 40 Cel":"23.5 A","at 45 Cel":"22.75 A","at 50 Cel":"21.75 A","at 55 Cel":"20.25 A","description":"RCBO, 10 kA, 1P+N, Type AC, 10 mA, C-Char, In: 25 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":"25 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":"10 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/495319210dd4ab4123549b35c3697421.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=629221&mlfb=5SU9104-1KK25"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SU9104-1KK25?","answer":"The breaking capacity is 10 kA rated per EN 60898 and also 10 kA per IEC 60947-2. This means it can safely interrupt fault currents up to 10,000 A at the rated voltage."},{"question":"What conductor sizes does 5SU9104-1KK25 accept?","answer":"Solid conductors from 0.75 mm² to 35 mm², and stranded conductors from 0.75 mm² to 35 mm². This covers common panel wiring from control circuits up to main feeder taps."},{"question":"What is the tripping characteristic and fault type?","answer":"The overcurrent trip is C-curve (magnetic trip between 5 and 10 times In). The residual current element is type AC, meaning it detects sinusoidal AC fault currents only — no pulsed DC or smooth DC detection."},{"question":"Where can I buy 5SU9104-1KK25 and how is it quoted?","answer":"The part is sourced to order through our independent distribution channel. Submit an RFQ for current pricing and availability — confirmed at quote time, not before."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU9104-1KK25","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/5SU9104-1KK25 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}}