{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1646-6FP25","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1646-6FP25","canonicalUrl":"https://aoctrl.com/siemens/5SU1646-6FP25","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1646-6FP25","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU1646-6FP25 RCBO, 4-pole, Type B, 25 A (30 °C), 6 kA, 4 MW, IP20.","salesMarkdown":"It is rated 25 A at 30 °C ambient, with a 6 kA breaking capacity per EN 60898 and IEC 60947-2, and carries a Type B tripping curve for general-purpose resistive and light inductive loads in residential or commercial final circuits. The 25 A rating holds at 30 °C; above that, the continuous current must be derated: 24 A at 40 °C, 23.5 A at 45 °C, 23 A at 50 °C, 22.5 A at 55 °C, 22 A at 60 °C, and 21 A at 70 °C. This means the part is usable in warm enclosures or near other heat sources, but the load must be sized to the actual ambient temperature — a 25 A circuit at 50 °C effectively becomes a 23 A circuit. Snap-on mounting for DIN rail, any position. Supply can enter from either top or bottom.","metaTitle":"Siemens 5SU1646-6FP25 SENTRON RCBO, 25 A, 6 kA, Type B, 4P","metaDescription":"Siemens 5SU1646-6FP25 SENTRON RCBO, 25 A rated at 30 °C, 6 kA breaking capacity per EN 60898, Type B characteristic, 4-pole, 4 MW. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"72 mm","Width":"72 mm","Height":"85 mm","Maximum":"70 °C","Minimum":"-40 °C","Halogen-Free":"No","Design Of Pole":"4P","Number Of Poles":"4","lifecycle_stage":"current","Mounting Position":"any","at AC rated value":"400 V","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"3","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","Weight With Packaging":"540 g","at 30 °C rated value":"25 A","at 40 °C rated value":"24 A","at 45 °C rated value":"23.5 A","at 50 °C rated value":"23 A","at 55 °C rated value":"22.5 A","at 60 °C rated value":"22 A","at 70 °C rated value":"21 A","Energy Limitation Class":"1","For Testing Equipment Minimum":"195 V","Number Of Modular Width Units":"4","Position Of Power Supply Cord":"Either top or bottom","Tripping Characteristic Class":"B","Number Of Poles With Protection":"4","according to EN 60898 rated value":"6 kA","insulation voltage (Ui) rated value":"500 V","Supply Voltage Frequency Rated Value":"50 Hz","Surge Voltage Resistance Rated Value":"4 000 V","according to IEC 60947-2 rated value":"6 kA","Surge Current Resistance At (8/20) μS":"0.25 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=1438081&mlfb=5SU1646-6FP25","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1646-6FP25/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SU1646-6FP25?","answer":"The breaking capacity is 6 kA per EN 60898 and also 6 kA per IEC 60947-2, at 400 V AC, 50 Hz."},{"question":"What is the tripping characteristic of this RCBO?","answer":"It has a Type B tripping characteristic (instantaneous design), suitable for general-purpose resistive and light inductive loads."},{"question":"Where can I buy 5SU1646-6FP25?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1646-6FP25","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/5SU1646-6FP25 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}}