{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1354-3KK25","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1354-3KK25","canonicalUrl":"https://aoctrl.com/siemens/5SU1354-3KK25","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1354-3KK25","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU1 RCBO, 2-pole 1P+N, 25 A (30 °C), B-curve, Type F, 10 kA per EN 60898, 230/240 V AC, 2 width units, IP20.","salesMarkdown":"The Siemens 5SU1354-3KK25 is a 2-pole (1P+N) RCBO from the SENTRON 5SU1 series, combining overcurrent protection and residual current detection in a single 36 mm wide unit. Breaking capacity is 10 kA per EN 60898 at 230/240 V AC, overvoltage category III, pollution degree 2. Energy limiting class 3 means it limits let-through energy well enough for most downstream equipment protection. ## Thermal derating — what the numbers mean The 25 A rating holds only at 30 °C ambient. At 40 °C it's 23.5 A, at 50 °C it's 21.75 A, and at 60 °C it drops to 20.25 A. By 70 °C you're down to 18.25 A. Mounting position is any — no restriction on upright or sideways. IP20 with conductors connected and distribution board installed. Halogen-free and silicon-free construction for environments sensitive to outgassing.","metaTitle":"Siemens 5SU1354-3KK25 RCBO, 25 A, 10 kA, Type F, 2-Pole","metaDescription":"Siemens SENTRON 5SU1354-3KK25 RCBO, 25 A rated at 30 °C, 10 kA breaking capacity, Type F fault current, 2-pole 1P+N, 230/240 V AC. Current production. Available 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","Width":"36 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","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","at 60 Cel":"20.25 A","at 65 Cel":"19.25 A","at 70 Cel":"18.25 A","Halogen-Free":"Yes","Silicon-Free":"Yes","Number of poles":"2","Type of voltage":"AC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Degree of pollution":"2","Operating frequency":"50/60 Hz","Product designation":"RCBO","Protection class IP":"IP20, if the distribution board is installed, with connected conductors","at AC / rated value":"230/240 V","Overvoltage category":"III","Design of the product":"Super resistant K","Energy limiting class":"3","Number of width units":"2","Type of fault current":"F","Number of poles / Note":"1P+N","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","circuit-breaker / Design":"5SU1","Tripping characteristic class":"B","acc. to EN 60898 / rated value":"10 kA","For Testing Equipment / Minimum":"195 V","Position / of power supply cord":"Either top or bottom","Number of poles / with protection":"1","acc. to IEC 60947-2 / rated value":"20 kA","Product feature / Touch protection":"Yes","Supply voltage frequency / rated value":"50 Hz","Operating current / at AC / rated value":"25 A","Tripping residual current / rated value":"30 mA","Influence of the surrounding temperature":"Max. 95% humidity","Surge current resistance / at (8/20) μs":"3 kA","Product function / neutral conductor switching":"Yes","Mechanical service life (switching cycles) / typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/b7c09daf3f1e09e4fe22a588f0eec8fd.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=518547&mlfb=5SU1354-3KK25","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1354-3KK25/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1354-3KK25","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/5SU1354-3KK25 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}}