{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1646-7FP32","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1646-7FP32","canonicalUrl":"https://aoctrl.com/siemens/5SU1646-7FP32","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1646-7FP32","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU1646-7FP32, RCBO, 4-pole, 32 A (30 °C), C-curve, 6 kA per EN 60898, 400 V AC, 50 Hz, 4 MW.","salesMarkdown":"It breaks 6 kA per EN 60898 and IEC 60947-2 at 400 V AC, 50 Hz — that's the fault-clearing capacity for a standard commercial or light industrial distribution board. Thermal derating is documented across the full operating range: 30.8 A at 40 °C, 30.2 A at 45 °C, 29.5 A at 50 °C, 29.2 A at 55 °C, 28.2 A at 60 °C, and 26.9 A at 70 °C. If the panel ambient runs warm, that's the actual continuous current the device can carry without nuisance tripping — size your load accordingly. Snap-on DIN rail mount, any position. The 4 MW width (72 mm) is standard for a 4-pole RCBO — it fills four slots in a distribution board. IP20 applies once the board is installed with conductors connected; the front face is touch-safe when the cover is on. Accepts supply from either top or bottom, which simplifies busbar routing. Test button requires a minimum of 195 V to operate the test circuit. That's worth knowing if you're commissioning on a reduced-voltage supply — the test won't function below that threshold.","metaTitle":"Siemens 5SU1646-7FP32 SENTRON RCBO, 4P, 32A, C-curve, 6kA","metaDescription":"Siemens 5SU1646-7FP32 SENTRON RCBO, 4-pole, 32 A rated at 30 °C, C tripping characteristic, 6 kA breaking capacity per EN 60898. Active production. 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":"487 g","at 30 °C rated value":"32 A","at 40 °C rated value":"30.8 A","at 45 °C rated value":"30.2 A","at 50 °C rated value":"29.5 A","at 55 °C rated value":"29.2 A","at 60 °C rated value":"28.2 A","at 70 °C rated value":"26.9 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,"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=1438088&mlfb=5SU1646-7FP32","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1646-7FP32/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of the 5SU1646-7FP32?","answer":"The depth is 72 mm; installation depth is 70 mm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1646-7FP32","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/5SU1646-7FP32 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}}