{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU9326-1CR40","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU9326-1CR40","canonicalUrl":"https://aoctrl.com/siemens/5SU9326-1CR40","factsUrl":"https://aoctrl.com/api/mcp/products/5SU9326-1CR40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON RCBO, 2-pole, 40 A (30 °C), 6 kA, Type C, instantaneous design, 4 MW, 77 mm depth.","salesMarkdown":"Rated 40 A at 30 °C with a Type C tripping characteristic, it interrupts faults up to 6 kA per EN 60898 and IEC 60947-2. The instantaneous design means no intentional time delay on the residual-current side — it trips on fault without waiting, which matters for equipment protection in circuits where nuisance tripping from transient leakage isn't a concern. ## Thermal derating and ambient range At 40 °C it derates to 36.4 A, at 45 °C to 34.8 A, at 50 °C to 33.2 A, and at 55 °C to 31.2 A. That's a roughly 22% drop from 30 °C to 55 °C — plan your continuous load headroom if the panel sits near hot equipment. The part is rated for -40 °C to 75 °C storage and operating ambient, which covers mill-floor conditions near furnace zones or outdoor cabinets in cold climates. Mounts in any position (vertical, horizontal, upside-down — no restriction) and accepts supply from top or bottom. The 77 mm depth and 72 mm width fit standard DIN-rail enclosures; installation depth is 70 mm. Halogen-free and silicon-free construction suits clean-room or corrosive-area installations where outgassing matters.","metaTitle":"Siemens SENTRON 5SU9326-1CR40 RCBO, 2P, 40A, 6kA, Type C","metaDescription":"Siemens SENTRON 5SU9326-1CR40 RCBO, 2-pole, 40 A rated at 30 °C, 6 kA breaking capacity (EN 60898), Type C characteristic. Active production. Sourced to order — RFQ for current pri","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"77 mm","Width":"72 mm","title":"5SU9326-1CR40","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","description":"RCBO, 6 kA, 2P, Type AC, 30 mA, C-Char, In: 40 A, Un AC: 400 V","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"2P","Number Of Poles":"2","lifecycle_stage":"current","Mounting Position":"any","at AC rated value":"230/240 V","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"2","Operating Frequency":"50/60 Hz","Product Designation":"RCD-operated circuit breaker","protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage Category":"III","Design Of The Product":"Instantaneous","Weight With Packaging":"420 g","at 30 °C rated value":"40 A","at 40 °C rated value":"36.4 A","at 45 °C rated value":"34.8 A","at 50 °C rated value":"33.2 A","at 55 °C rated value":"31.2 A","Energy Limitation Class":"3","For Testing Equipment Minimum":"125 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":"2","according to EN 60898 rated value":"6 kA","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":"6 kA","Surge Current Resistance At (8/20) μS":"1 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":"0.75 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/c6f976b23b33245b2790ed55b778b93e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=629290&mlfb=5SU9326-1CR40"},"ai":{"faq":[{"question":"Where can I buy 5SU9326-1CR40 and how do I get a price?","answer":"The 5SU9326-1CR40 is sourced to order against an RFQ. Submit a request for current pricing and availability — no stock or price figures are published here."},{"question":"What is 5SU9326-1CR40's listed depth (77 mm) on this component line?","answer":"The depth is 77 mm, with an installation depth of 70 mm."},{"question":"What is 5SU9326-1CR40's listed width (72 mm) on this component line?","answer":"The width is 72 mm, which corresponds to 4 modular width units (each 18 mm)."},{"question":"Will 5SU9326-1CR40 drop into a panel that was specified around 5SL4363-7 without rewiring?","answer":"Both are 2-pole RCBOs in a 4-MW footprint, so the mechanical fit is the same. However, 5SL4363-7 is a different series (5SL vs 5SU) with different breaking capacities and possibly different residual-current characteristics — verify the specific ratings against your BOM before substituting."},{"question":"What compliance documentation does this brand provide for 5SU9326-1CR40 (RoHS, REACH, UL, IEC)?","answer":"The part carries approvals per EN 60898 and IEC 60947-2 for breaking capacity. It is halogen-free and silicon-free. Full RoHS/REACH declarations and the manufacturer's declaration of conformity are available from Siemens upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU9326-1CR40","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/5SU9326-1CR40 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}}