{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1674-7BK82","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1674-7BK82","canonicalUrl":"https://aoctrl.com/siemens/5SU1674-7BK82","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1674-7BK82","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON selective RCBO, 4-pole, Type B, 125 A, 300 mA, 10 kA, 4-module width.","salesMarkdown":"The Siemens SENTRON 5SU1674-7BK82 is a selective RCBO — a combined residual-current circuit breaker with overcurrent protection — built for 4-pole (3L+N) circuits. It's rated 125 A at 30 °C with a C tripping characteristic and a 300 mA Type B residual-current trip, meaning it catches smooth DC fault currents as well as AC and pulsed DC, which is what you need on VFD-fed circuits or UPS-backed loads where pure sine-wave residual current isn't guaranteed. The 10 kA breaking capacity per EN 60898 and IEC 60947-2 gives it enough fault-clearing headroom for most commercial and light-industrial distribution boards. This is an 11-module-wide unit (198 mm wide, 90 mm tall, 77 mm deep plus 70 mm installation depth) that mounts in any position on a DIN rail inside an IP20 distribution board. The 125 A rating is at 30 °C ambient; at 40 °C it's 115.62 A, at 50 °C it's 106.25 A, and at 60 °C it's 96.25 A.","metaTitle":"Siemens 5SU1674-7BK82 SENTRON RCBO, 125 A, 300 mA, 10 kA","metaDescription":"Siemens SENTRON 5SU1674-7BK82 selective RCBO, 4-pole, Type B, 125 A, 300 mA residual current, 10 kA breaking capacity. Current production. Quoted 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","Degree Of Pollution":"2","Operating Frequency":"50/60 Hz","Product Designation":"RCBO","protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage Category":"III","Design Of The Product":"selective","Residual Current Type":"B","Weight With Packaging":"2 085 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":"5 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","for rated value of the current at AC in hot operating state per pole":"22 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/4433f24291ae70e784d6a233f4baf189.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=439772&mlfb=5SU1674-7BK82","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1674-7BK82/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1674-7BK82","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/5SU1674-7BK82 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}}