{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1674-7AK81","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1674-7AK81","canonicalUrl":"https://aoctrl.com/siemens/5SU1674-7AK81","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1674-7AK81","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON RCBO, 4-pole, 100 A, Type B, 300 mA fault current, 10 kA breaking capacity, tripping characteristic C, IP20, current production.","salesMarkdown":"## Siemens SENTRON 5SU1674-7AK81 — RCBO, 4-Pole, 100 A, Type B The C tripping characteristic handles moderate inrush from motor or lighting loads. Supply connection can be made from either top or bottom, simplifying panel layout. The 100 A rating is valid at 30 °C ambient. At 40 °C the continuous current derates to 92.5 A; at 50 °C to 85 A; at 60 °C to 77 A. For a panel that runs warm — say 45 °C inside the enclosure — the usable rating is 89 A. This derating curve must be factored into the load schedule for compliance with IEC 60898. The device occupies 11 modular width units (198 mm wide), with a depth of 77 mm and a height of 90 mm. Installation depth is 70 mm. The 77 mm depth is the overall body dimension including the front face; the 70 mm installation depth is the space required behind the panel face for the body and terminals. Verify that the distribution board has sufficient gutter space for the 4-pole width and the cable bending radius for 100 A conductors.","metaTitle":"Siemens SENTRON 5SU1674-7AK81 RCBO, 4P, 100 A, Type B, 300 m","metaDescription":"Siemens SENTRON 5SU1674-7AK81 RCBO, 4-pole, 100 A rated, Type B residual current, 300 mA fault 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","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","at AC / rated value":"100 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","Energy Limitation Class":"3","Weight / With Packaging":"2 071 g","according to EN 61346-2":"F","at 30 °C / rated value":"100 A","at 40 °C / rated value":"92.5 A","at 45 °C / rated value":"89 A","at 50 °C / rated value":"85 A","at 55 °C / rated value":"81 A","at 60 °C / rated value":"77 A","according to IEC 81346-2":"F","Number Of Modular Width Units":"11","Tripping Characteristic Class":"C","For Testing Equipment / Minimum":"100 V","Position / Of Power Supply Cord":"Either top or bottom","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","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","Mechanical Service Life (Switching Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/5bf1d70d313a7264a39cdaf80150d319.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=263430&mlfb=5SU1674-7AK81","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1674-7AK81/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SU1674-7AK81 and how do I get a price?","answer":"The 5SU1674-7AK81 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is 5SU1674-7AK81's listed depth (77 mm) on this component line?","answer":"The overall depth of the 5SU1674-7AK81 is 77 mm; the installation depth (space required behind the panel face) is 70 mm."},{"question":"What is 5SU1674-7AK81's listed width (198 mm) on this component line?","answer":"The width is 198 mm, corresponding to 11 modular width units on a standard DIN-rail distribution board."},{"question":"What compliance documentation does this brand provide for 5SU1674-7AK81 (RoHS, REACH, UL, IEC)?","answer":"The device is designed to EN 60898 and IEC 61346-2 / IEC 81346-2. It carries CE marking for the European market. RoHS and REACH compliance documentation is available from the manufacturer upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1674-7AK81","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/5SU1674-7AK81 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}}