{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1654-6KK20","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1654-6KK20","canonicalUrl":"https://aoctrl.com/siemens/5SU1654-6KK20","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1654-6KK20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON RCBO, 2-pole 1P+N, 20 A, B characteristic, Type A residual current, 10 kA (EN 60898) / 20 kA (IEC 60947-2), 2 MW, IP20.","salesMarkdown":"The Siemens SENTRON 5SU1654-6KK20 is a 2-pole (1P+N) residual current circuit breaker with overcurrent protection — an RCBO that combines a B-curve MCB and a Type A RCD in one 36 mm-wide, 2-module-width housing. Energy limitation class 3 (cites:) means it limits let-through energy enough to protect downstream wiring and loads during a fault. ## Temperature derating — the real-world current At 40 °C the continuous current drops to 18.8 A (cites:), at 50 °C to 17.4 A (cites:), and at 70 °C to 14.6 A (cites:). If the RCBO is installed in a crowded enclosure or near heat-generating devices, the effective ampacity is lower than the nameplate. The mounting position is unrestricted (cites:), so derating is driven by ambient temperature alone, not orientation. ## Panel fit and installation Width is 36 mm, which is 2 modular width units (cites:,) — it occupies two standard 18 mm DIN-rail slots. Depth is 77 mm (cites:), installation depth 70 mm (cites:). The supply cord can enter from either top or bottom (cites:), which simplifies busbar routing in a distribution board.","metaTitle":"Siemens SENTRON 5SU1654-6KK20 RCBO, 20 A, B Curve, 10 kA","metaDescription":"Siemens SENTRON 5SU1654-6KK20 RCBO, 2-pole 1P+N, 20 A rated, B tripping characteristic, Type A residual current, 10 kA (EN 60898) / 20 kA (IEC 60947-2) breaking capacity. Current p","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 Hz","Product Designation":"RCBO","acc. to IEC 81346-2":"F","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","Number Of Poles / Note":"1P+N","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","Weight / With Packaging":"282 g","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","at 60 °C / rated value":"16.2 A","at 65 °C / rated value":"15.4 A","at 70 °C / rated value":"14.6 A","Number Of Modular Width Units":"2","Tripping Characteristic Class":"B","acc. to EN 60898 / rated value":"10 kA","For Testing Equipment / Minimum":"100 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","Tripping Fault Current / Rated Value":"300 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","Product Function / Neutral Conductor Switching":"Yes","Mechanical Service Life (Operating Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/2d39c938e6683cc614f27cacdec38ebb.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=418538&mlfb=5SU1654-6KK20","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1654-6KK20/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SU1654-6KK20 and how do I get a price?","answer":"The 5SU1654-6KK20 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the breaking capacity of 5SU1654-6KK20?","answer":"Rated breaking capacity is 10 kA per EN 60898 (cites:) and 20 kA per IEC 60947-2 (cites:). The higher figure applies when the RCBO is used in industrial switchgear per IEC 60947-2."},{"question":"What does the B curve and Type A residual current mean on this RCBO?","answer":"The B tripping characteristic (cites:) means the magnetic trip operates at 3 to 5 times rated current, suited for resistive and light inductive loads. Type A residual current detection (cites:) covers sinusoidal AC and pulsating DC fault currents, required for circuits with electronic loads like switched-mode power supplies or VFDs."},{"question":"What is the temperature derating for 5SU1654-6KK20?","answer":"At 30 °C the rating is 20 A (cites:). It derates to 18.8 A at 40 °C (cites:), 17.4 A at 50 °C (cites:), and 14.6 A at 70 °C (cites:). Mounting position is unrestricted (cites:)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1654-6KK20","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/5SU1654-6KK20 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}}