{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1674-7CK82","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1674-7CK82","canonicalUrl":"https://aoctrl.com/siemens/5SU1674-7CK82","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1674-7CK82","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON RCBO, 4-pole Type B, 125 A rated, C-curve, 300 mA residual, 10 kA breaking capacity, 77 x 198 x 90 mm, IP20.","salesMarkdown":"The Siemens 5SU1674-7CK82 is a 4-pole RCBO from the SENTRON Super resistant K series — a combined overcurrent and residual current device that fits a standard DIN-rail distribution board. The Type B residual current detection handles smooth DC, pulsating DC, and AC fault currents up to 300 mA, which means it covers variable-speed drives, UPS systems, and EV charging circuits where pure AC or pulsating DC RCDs would be blind to a DC fault component. ## Temperature derating — the real continuous current At 40 °C it derates to 115.62 A, at 45 °C to 111.25 A, at 50 °C to 106.25 A, at 55 °C to 101.25 A, and at 60 °C to 96.25 A. If the distribution board runs warm — typical in a crowded panel — the actual continuous current the RCBO can carry without nuisance tripping is lower than the label. Size the upstream conductor and load accordingly. At 11 modular width units (198 mm wide, 77 mm deep, 90 mm tall), it takes up a full 11-pole slot on the rail.","metaTitle":"Siemens 5SU1674-7CK82 SENTRON RCBO, 4P, Type B, 125 A, C-cur","metaDescription":"Siemens 5SU1674-7CK82 SENTRON RCBO, 4-pole, Type B residual current, 125 A rated, C tripping characteristic, 300 mA fault current. Breaking capacity 10 kA per EN 60898 and IEC 6094","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","Number Of Poles":"4","lifecycle_stage":"current","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"2","Operating Frequency":"50/60 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":"Super resistant K","Residual Current Type":"B","Number Of Poles / Note":"4P","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","Weight / With Packaging":"2 074 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":"C","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","Supply Voltage Frequency / Rated Value":"50 Hz","Influence Of The Surrounding Temperature":"Max. 95% humidity","Surge Current Resistance / At (8/20) μS":"3 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/b07d29e248dbddf69e17fe3ff9d8e078.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=500164&mlfb=5SU1674-7CK82","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1674-7CK82/alternatives.json"},"ai":{"faq":[{"question":"What is the 5SU1674-7CK82's depth?","answer":"The depth is 77 mm, width 198 mm, height 90 mm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1674-7CK82","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/5SU1674-7CK82 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}}