{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1644-7KK82","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1644-7KK82","canonicalUrl":"https://aoctrl.com/siemens/5SU1644-7KK82","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1644-7KK82","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU1644-7KK82 RCBO, 4-pole, 125 A, 300 mA residual current, Type A, C tripping characteristic, 10 kA breaking capacity per EN 60898 and IEC 60947-2.","salesMarkdown":"The Siemens SENTRON 5SU1644-7KK82 is a 4-pole RCBO (residual current circuit breaker with overcurrent protection) rated 125 A at 30 °C, with a 300 mA Type A residual-current trip and a C tripping characteristic. The 11-module-wide body (198 mm) mounts in any position — useful when the gland plate is tight and you need to rotate the assembly for cable entry from top or bottom. ## Derating and thermal profile The 125 A nominal rating holds at 30 °C ambient. At 40 °C it derates to 115.62 A, at 50 °C to 106.25 A, and at 60 °C to 96.25 A. ## Residual-current and overcurrent coordination The 300 mA threshold is typical for fire protection in distribution sub-mains rather than personal shock protection (30 mA is the usual for socket-outlet circuits).","metaTitle":"Siemens 5SU1644-7KK82 SENTRON RCBO, 4P, 125 A, 300 mA, Type","metaDescription":"Siemens SENTRON 5SU1644-7KK82 RCBO, 4-pole, 125 A rated, 300 mA residual current, Type A, C characteristic, 10 kA breaking capacity. Active production. Available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"77 mm","Width":"198 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"4P","Number Of Poles":"4","lifecycle_stage":"current","Mounting Position":"any","at AC rated value":"125 A","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Operating Frequency":"50 Hz","Product Designation":"RCBO","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","Weight With Packaging":"2 029 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","Energy Limitation Class":"3","For Testing Equipment Minimum":"100 V","Number Of Modular Width Units":"11","Position Of Power Supply Cord":"Either top or bottom","Tripping Characteristic Class":"C","Number Of Poles With Protection":"4","according to EN 60898 rated value":"10 kA","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","according to IEC 60947-2 rated value":"10 kA","Surge Current Resistance At (8/20) μS":"1 kA","Influence Of The Surrounding Temperature":"Max. 95% humidity","Type Of Voltage Of The Operating Voltage":"AC","Mechanical Service Life (Operating 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=289880&mlfb=5SU1644-7KK82","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1644-7KK82/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SU1644-7KK82 and how do I get a price?","answer":"Sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is 5SU1644-7KK82's listed depth?","answer":"The overall depth is 77 mm; installation depth into the distribution board is 70 mm."},{"question":"What compliance documentation does this brand provide for 5SU1644-7KK82?","answer":"The SENTRON series typically ships with CE, UKCA, and EAC declarations. The exact RoHS/REACH status for this order code is confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1644-7KK82","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/5SU1644-7KK82 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}}