{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU9654-7KK20","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU9654-7KK20","canonicalUrl":"https://aoctrl.com/siemens/5SU9654-7KK20","factsUrl":"https://aoctrl.com/api/mcp/products/5SU9654-7KK20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON RCBO, 2-pole, 20 A rated, 300 mA residual current, Type A, C-curve, 10 kA breaking capacity, 77 mm depth, 36 mm width.","salesMarkdown":"The Siemens SENTRON 5SU9654-7KK20 is a 2-pole RCD-operated circuit breaker (RCBO) combining overcurrent protection and residual current detection in one 36 mm wide, 77 mm deep module — 2 modular width units on a DIN rail, mountable in any position, with supply feed from top or bottom. ## Derating and ambient temperature At 40 °C it derates to 18.8 A, at 50 °C to 17.4 A, and at 55 °C to 16.2 A — so in a warm enclosure (common in packed panels) the connected load must be sized accordingly. Two modular-width units (36 mm) snap onto a DIN rail; the 77 mm depth fits standard enclosures. Installation depth is 70 mm. Degree of pollution 2 and IP20 when installed in a distribution board with connected conductors.","metaTitle":"Siemens 5SU9654-7KK20 SENTRON RCBO, 2P, 20A, 300mA, Type A,","metaDescription":"Siemens SENTRON 5SU9654-7KK20 RCBO, 2-pole, 20 A rated, 300 mA residual current, Type A, 10 kA breaking capacity, C-curve. Active production, sourced to order against RFQ.","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","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":"50/60 Hz","Product Designation":"RCD-operated circuit breaker","at AC / rated value":"20 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":"A","Energy Limitation Class":"3","Weight / With Packaging":"290 g","according to EN 61346-2":"F","at 30 °C / rated value":"20 A","at 40 °C / rated value":"18.8 A","at 45 °C / rated value":"18.2 A","at 50 °C / rated value":"17.4 A","at 55 °C / rated value":"16.2 A","according to IEC 81346-2":"F","Number Of Modular Width Units":"2","Tripping Characteristic Class":"C","For Testing Equipment / Minimum":"125 V","Position / Of Power Supply Cord":"Either top or bottom","Number Of Poles / With Protection":"1","Product Feature / Touch Protection":"Yes","according to EN 60898 / rated value":"10 kA","Tripping Fault Current / Rated Value":"300 mA","insulation voltage (Ui) / rated value":"264 V","Supply Voltage Frequency / Rated Value":"50 Hz","Surge Voltage Resistance / Rated Value":"4 000 V","according to IEC 60947-2 / rated value":"10 kA","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":"https://cdn.aoctrl.com/e9c4af527ac021b0fe726a26385e70c3.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=646583&mlfb=5SU9654-7KK20","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU9654-7KK20/alternatives.json"},"ai":{"faq":[{"question":"What is the width of 5SU9654-7KK20?","answer":"The width is 36 mm, which corresponds to 2 modular width units on a standard DIN rail."},{"question":"Will 5SU9654-7KK20 drop into a panel specified around 5SY5240-7 without rewiring?","answer":"Both are 2-pole, 36 mm wide DIN-rail modules, so the physical fit is identical. However, verify the residual current rating and tripping characteristic — the 5SU9654-7KK20 is a Type A, 300 mA unit; the 5SY5240-7 may differ. No rewiring is needed if the terminal positions and ratings match your circuit design."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU9654-7KK20","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/5SU9654-7KK20 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}}