{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1654-0KK32","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1654-0KK32","canonicalUrl":"https://aoctrl.com/siemens/5SU1654-0KK32","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1654-0KK32","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU1654-0KK32, RCBO, 1P+N, 32 A, B-curve, 300 mA residual current, 10 kA breaking capacity, 2 MW.","salesMarkdown":"The Siemens 5SU1654-0KK32 is a SENTRON RCBO — a combined overcurrent and residual-current device in a single 2-module-wide (36 mm) package. It protects a 1P+N final circuit at 32 A rated current with B-curve magnetic tripping for short-circuit and overload, plus a 300 mA AC-type residual-current element that disconnects both line and neutral on a ground fault. Above that, the device derates: 30.4 A at 40 °C, 29.76 A at 45 °C, 28.8 A at 50 °C, 27.84 A at 55 °C, 27.2 A at 60 °C, 25.92 A at 65 °C, and 24.64 A at 70 °C. If the distribution board runs warm — say 50 °C inside the enclosure — the usable load drops to 28.8 A, not the nameplate 32 A. That derating curve is the one that governs real-world sizing, not the 30 °C headline figure. The 300 mA residual-current threshold is a delayed or selective-type trip level — not the 30 mA used for personal shock protection. This RCBO is intended for fire protection or equipment protection on circuits where a lower sensitivity would cause nuisance tripping from leakage in long cable runs or permanently connected equipment. B-curve tripping means the magnetic release operates at 3 to 5 times rated current (96–160 A for this 32 A unit). That suits resistive and general-purpose loads — lighting, socket outlets, small appliances — where inrush is modest. For motor or transformer circuits with higher inrush, a C-curve (5–10× In) would be the correct choice; this B-curve will nuisance-trip on those loads. The 1P+N design switches the line conductor and disconnects the neutral on a residual fault, but the neutral pole is not protected against overcurrent — only the line pole has the thermal-magnetic element. That is standard for single-phase RCBOs in many territories, but worth noting if the local code expects both poles to be switched and protected. Two modular-width units (36 mm) occupy two adjacent slots in the distribution board. IP20 rated once the distribution board is installed and conductors are connected — meaning finger-safe but not protected against water ingress.","metaTitle":"Siemens 5SU1654-0KK32 SENTRON RCBO, 32A B-Curve 300mA 10kA","metaDescription":"Siemens 5SU1654-0KK32 SENTRON RCBO, 32A rated, B-curve, 300mA residual current, 10kA breaking capacity per EN 60898. 1P+N, 2-module width. Current production. Sourced to order.","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","Design Of Pole":"1P+N","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","at AC / rated value":"32 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","Energy Limitation Class":"3","Weight / With Packaging":"290 g","according to EN 61346-2":"F","at 30 °C / rated value":"32 A","at 40 °C / rated value":"30.4 A","at 45 °C / rated value":"29.76 A","at 50 °C / rated value":"28.8 A","at 55 °C / rated value":"27.84 A","at 60 °C / rated value":"27.2 A","at 65 °C / rated value":"25.92 A","at 70 °C / rated value":"24.64 A","according to IEC 81346-2":"F","Number Of Modular Width Units":"2","Tripping Characteristic Class":"B","For Testing Equipment / Minimum":"100 V","Position / Of Power Supply Cord":"Either top or bottom","Number Of Poles / With Protection":"1","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":"15 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","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=256813&mlfb=5SU1654-0KK32","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1654-0KK32/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1654-0KK32","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/5SU1654-0KK32 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}}