{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1354-0KK40","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1354-0KK40","canonicalUrl":"https://aoctrl.com/siemens/5SU1354-0KK40","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1354-0KK40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU1354-0KK40 RCBO, 2-pole, 40 A rated, B characteristic, 10 kA (EN 60898), type AC residual current, 2 modular width units.","salesMarkdown":"## RCBO for 50 Hz distribution boards The Siemens 5SU1354-0KK40 is a 2-pole residual current operated circuit breaker (RCBO) from the SENTRON series, combining overcurrent protection and residual current detection in a single 36 mm wide (2 modular width units) package for 50 Hz systems. Energy limitation class 3. The higher IEC figure applies when the device is used as an industrial molded-case equivalent; the EN figure governs residential and commercial distribution board coordination. Energy limitation class 3 means the let-through energy is low enough to protect downstream wiring and loads under fault conditions — relevant for selectivity studies with upstream SENTRON NH fuse-links or SENTRON 3VA breakers. ## Thermal derating and installation constraints Derate 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. Panel builders must apply these values when grouping multiple RCBOs in a confined enclosure. Mounting position is unrestricted, and the supply can enter from either top or bottom — simplifies busbar routing in a crowded distribution board. IP20 applies once the board is closed with conductors connected.","metaTitle":"Siemens 5SU1354-0KK40 SENTRON RCBO, 40 A, B Curve, 10 kA","metaDescription":"Siemens 5SU1354-0KK40 SENTRON RCBO, 2-pole, 40 A rated, B tripping characteristic, 10 kA (EN 60898) / 15 kA (IEC 60947-2), type AC residual current, 2 MW wide. Current production.","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":"40 A","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","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","Weight / With Packaging":"293 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":"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":"15 kA","Product Feature / Touch Protection":"Yes","Tripping Fault Current / Rated Value":"30 mA","insulation voltage (Ui) / rated value":"264 V","Supply Voltage Frequency / Rated Value":"50 Hz","Surge Voltage Resistance / Rated Value":"4 000 V","Influence Of The Surrounding Temperature":"Max. 95% humidity","Surge Current Resistance / At (8/20) μS":"1 kA","Type Of Voltage / Of The Operating Voltage":"AC","Product Component / Neutral Conductor Switching":"Yes","Mechanical Service Life (Switching Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=134416&mlfb=5SU1354-0KK40","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1354-0KK40/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of 5SU1354-0KK40?","answer":"Overall depth is 77 mm; installation depth is 70 mm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1354-0KK40","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/5SU1354-0KK40 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}}