{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1346-7FP25","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1346-7FP25","canonicalUrl":"https://aoctrl.com/siemens/5SU1346-7FP25","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1346-7FP25","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU1346-7FP25 RCBO, 4-pole, 25 A (30 °C), C-curve, 6 kA per EN 60898, 4 MW, IP20.","salesMarkdown":"The C-curve means it holds up to 5–10× rated current momentarily, so it won't nuisance-trip on motor inrush or capacitor bank charging, but clears fast on a hard short. ## Thermal derating — the real-world rating The 25 A nameplate rating is at 30 °C. Inside a warm panel at 40 °C it's good for 24 A; at 50 °C it drops to 23 A; at 60 °C it's 22 A; at 70 °C it's 21 A. If your BOM line calls for 25 A continuous in a 50 °C enclosure, this part won't hold — you'd need to step up to the next frame or ventilate the panel. The derating curve is linear enough to interpolate between the published points. Mounting position is any orientation. The IP20 rating applies once the distribution board is installed with conductors connected; the front face is finger-safe but the terminals need enclosure protection.","metaTitle":"Siemens SENTRON 5SU1346-7FP25 RCBO, 25A C-curve 4P 6kA","metaDescription":"Siemens SENTRON 5SU1346-7FP25 RCBO, 4-pole, 25 A rated at 30 °C, C-curve, 6 kA breaking capacity per EN 60898. Current production. Sourced to order.","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","title":"5SU1346-7FP25","Height":"85 mm","Maximum":"70 °C","Minimum":"-40 °C","description":"RCBO, 6 kA, 4P Type A, 30 mA, C-Char, In: 25A Un: 400V Energy limiting class 1: check for normative use limitations","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":"498 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":"C","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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/6e2e6ddacb60a42cb10c149ae3a30b8e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1438063&mlfb=5SU1346-7FP25"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1346-7FP25","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/5SU1346-7FP25 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}