{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1644-0KK82","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1644-0KK82","canonicalUrl":"https://aoctrl.com/siemens/5SU1644-0KK82","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1644-0KK82","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON RCBO, 4-pole, Type AC, 300 mA residual current, 10 kA breaking capacity (EN 60898 / IEC 60947-2), Class B tripping characteristic, 125 A rated current at 30 °C, halogen-free and silicon-free, IP20 when installed.","salesMarkdown":"The 300 mA residual sensitivity makes this a good fit for circuits where a 30 mA RCD would cause nuisance tripping — think distribution sub-mains, feeder circuits to fixed equipment, or lighting banks with higher natural leakage. The AC-type detection handles sinusoidal AC fault currents; it's not listed for pulsating DC or smooth DC faults, so keep that in mind if the load includes rectifiers or VFDs downstream. ## Temperature derating and installation Rated 125 A at 30 °C, but the continuous current drops to 115.62 A at 40 °C, 111.25 A at 45 °C, 106.25 A at 50 °C, 101.25 A at 55 °C, and 96.25 A at 60 °C. The 70 mm installation depth is standard for SENTRON modular devices; the 11 MW width means it occupies eleven 18 mm slots on the DIN rail.","metaTitle":"Siemens SENTRON 5SU1644-0KK82 RCBO, 4P, 300 mA, 10 kA, Class","metaDescription":"Siemens SENTRON 5SU1644-0KK82 4-pole RCBO, Type AC, 300 mA residual, 10 kA breaking capacity, Class B characteristic. Current production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Maximum":"75 °C","Minimum":"-40 °C","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"4","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":"125 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":"2 041 g","at 30 °C / rated value":"125 A","at 40 °C / rated value":"115.62 A","at 45 °C / rated value":"111.25 A","at 50 °C / rated value":"106.25 A","at 55 °C / rated value":"101.25 A","at 60 °C / rated value":"96.25 A","Number Of Modular Width Units":"11","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":"4","acc. to IEC 60947-2 / rated value":"10 kA","Product Feature / Touch Protection":"Yes","Tripping Fault Current / Rated Value":"300 mA","insulation voltage (Ui) / rated value":"440 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":"3 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/bed74928c9539d6c50f1eb1e06da07d1.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=99114&mlfb=5SU1644-0KK82","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1644-0KK82/alternatives.json"},"ai":{"faq":[{"question":"What is the 5SU1644-0KK82's maximum and minimum operating temperature?","answer":"The device is rated for an ambient temperature range of -40 °C to 75 °C, though continuous current must be derated above 30 °C per the published curve."},{"question":"Where can I buy the 5SU1644-0KK82 and what is the lead time?","answer":"This part is sourced to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm lead time and price."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1644-0KK82","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/5SU1644-0KK82 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}}