{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1354-1KK40","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1354-1KK40","canonicalUrl":"https://aoctrl.com/siemens/5SU1354-1KK40","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1354-1KK40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU1354-1KK40 RCBO, 2-pole 1P+N, 40 A at 30 °C, 10 kA breaking capacity per EN 60898, Type AC residual current, tripping characteristic C, instantaneous design.","salesMarkdown":"The Siemens SENTRON 5SU1354-1KK40 is a 2-pole (1P+N) RCBO — a combined residual-current device and miniature circuit breaker in a single 36 mm-wide unit (2 modular widths). The IP20 rating applies once the distribution board is installed with conductors connected; the unit itself isn't sealed against dust or moisture ingress. ## Thermal derating — the real-world rating Above that, the continuous current must be reduced: 37.6 A at 40 °C, 36.4 A at 45 °C, 34.8 A at 50 °C, 32.4 A at 55 °C and 60 °C, 30.8 A at 65 °C, and 29.2 A at 70 °C. Size the upstream protection and load accordingly. ## Panel fit and installation The 90 mm height fits standard distribution board cutouts. Spring-cage terminals accept the usual copper conductors; no special tooling needed beyond a screwdriver for the terminals.","metaTitle":"Siemens SENTRON 5SU1354-1KK40 RCBO, 2-pole 1P+N, 40 A, 10 kA","metaDescription":"Siemens SENTRON 5SU1354-1KK40 RCBO, 2-pole 1P+N, 40 A rated at 30 °C, 10 kA (EN 60898) / 15 kA (IEC 60947-2), Type AC residual current, Char C trip curve. Current production. Quote","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"77 mm","Width":"36 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"2","lifecycle_stage":"current","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"2","Operating Frequency":"50 Hz","Product Designation":"RCBO","acc. to IEC 81346-2":"F","at AC / rated value":"230/240 V","protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage Category":"III","Design Of The Product":"Instantaneous","Residual Current Type":"AC","Number Of Poles / Note":"1P+N","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","Weight / With Packaging":"284 g","at 30 °C / rated value":"40 A","at 40 °C / rated value":"37.6 A","at 45 °C / rated value":"36.4 A","at 50 °C / rated value":"34.8 A","at 55 °C / rated value":"32.4 A","at 60 °C / rated value":"32.4 A","at 65 °C / rated value":"30.8 A","at 70 °C / rated value":"29.2 A","Number Of Modular Width Units":"2","Tripping Characteristic Class":"C","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":"15 kA","Product Feature / Touch Protection":"Yes","Tripping Fault Current / Rated Value":"30 mA","Supply Voltage Frequency / Rated Value":"50 Hz","Influence Of The Surrounding Temperature":"Max. 95% humidity","Surge Current Resistance / At (8/20) μS":"1 kA","operational current / at AC / rated value":"40 A","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/c477113c39aa5e863e00248a6b6299c5.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=510829&mlfb=5SU1354-1KK40","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1354-1KK40/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SU1354-1KK40?","answer":"10 kA per EN 60898 and 15 kA per IEC 60947-2."},{"question":"What is the rated current of 5SU1354-1KK40 at different temperatures?","answer":"40 A at 30 °C, derating to 37.6 A at 40 °C, 36.4 A at 45 °C, 34.8 A at 50 °C, 32.4 A at 55 °C and 60 °C, 30.8 A at 65 °C, and 29.2 A at 70 °C."},{"question":"Where can I buy 5SU1354-1KK40?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1354-1KK40","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/5SU1354-1KK40 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}}