{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1674-7FK82","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1674-7FK82","canonicalUrl":"https://aoctrl.com/siemens/5SU1674-7FK82","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1674-7FK82","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON RCBO, Super resistant K design, 4-pole, 125 A, C characteristic, 300 mA type B+ residual current, 10 kA breaking capacity.","salesMarkdown":"Type B+ residual current detection covers smooth DC, pulsating DC, and high-frequency AC fault currents — meaning it handles the leakage profiles from VFDs, UPS systems, and EV chargers that a standard AC or A type would miss. The 125 A rating applies at 30 °C; derate 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 thermal curve governs real-world loading in a warm enclosure. Occupies 11 modular width units (MWU) on a DIN rail; the housing is 198 mm wide, 90 mm high, and 77 mm deep, with an installation depth of 70 mm behind the panel face. Mounting position is unrestricted, and the supply cord can enter from either the top or bottom — useful when retrofitting into an existing board with fixed busbar routing.","metaTitle":"Siemens SENTRON 5SU1674-7FK82 RCBO, 4P, 125 A, C, 300 mA, B+","metaDescription":"Siemens SENTRON 5SU1674-7FK82 RCBO, 4-pole, 125 A, C-curve, 300 mA type B+ residual current. 10 kA per EN 60898. Active 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":"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+","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","Weight / With Packaging":"2 050 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","insulation voltage (Ui) / rated value":"528 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":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=385094&mlfb=5SU1674-7FK82","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1674-7FK82/alternatives.json"},"ai":{"faq":[{"question":"What residual current types does this RCBO detect?","answer":"Type B+ covers smooth DC, pulsating DC, and high-frequency AC — suitable for VFD, UPS, and EV charger circuits."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1674-7FK82","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/5SU1674-7FK82 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}}