{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU9326-1CS63","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU9326-1CS63","canonicalUrl":"https://aoctrl.com/siemens/5SU9326-1CS63","factsUrl":"https://aoctrl.com/api/mcp/products/5SU9326-1CS63","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU9 RCBO, 2-pole, 63 A rated current, 30 mA residual, C tripping characteristic, 6 kA breaking capacity, IP20, 4 MW.","salesMarkdown":"It carries a 63 A rated current at 30 °C with a 30 mA residual-current trip, C characteristic for moderate inrush (motor starts, capacitor banks), and a 6 kA breaking capacity certified to both EN 60898 and IEC 60947-2. ## Ratings that matter for fit Depth is 77 mm, installation depth 70 mm; the extra 7 mm is the front projection. Mounting position is unrestricted, and the supply can enter from top or bottom, which simplifies panel layout. The C-curve trips between 5× and 10× In, so at 63 A that is 315 A to 630 A magnetic release. The 30 mA residual element is instantaneous (no time delay), which makes it unsuitable for circuits with downstream RCDs unless you coordinate selectivity via a time-delayed S-type upstream. The 1 kA surge withstand (8/20 µs) is typical for this class — it will survive most lightning-induced transients on a TN-S system without nuisance tripping. Halogen-free and silicon-free construction, pollution degree 2, overvoltage category III. The part is designed to EN 60898 and IEC 60947-2, which means it carries the CE mark for the European low-voltage directive. Touch protection is integrated (finger-safe terminals). Typical mechanical endurance is 10 000 switching cycles.","metaTitle":"Siemens SENTRON 5SU9326-1CS63 RCBO, 2P, 63 A, 30 mA, C-curve","metaDescription":"Siemens SENTRON 5SU9326-1CS63 RCBO, 2-pole, 63 A rated, 30 mA residual, C characteristic, 6 kA breaking capacity, IP20. Active lifecycle. Quoted to order.","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","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","at 30 Cel":"63 A","Halogen-Free":"Yes","Silicon-Free":"Yes","Number of poles":"2","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":"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","Energy limiting class":"3","Number of width units":"4","Type of fault current":"AC","Number of poles / Note":"2P","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","circuit-breaker / Design":"5SU9","Tripping characteristic class":"C","acc. to EN 60898 / rated value":"6 kA","For Testing Equipment / Minimum":"125 V","Position / of power supply cord":"Either top or bottom","Number of poles / with protection":"2","acc. to IEC 60947-2 / rated value":"6 kA","Product feature / Touch protection":"Yes","Supply voltage frequency / rated value":"50 Hz","Operating current / at AC / rated value":"63 A","Tripping residual current / rated value":"30 mA","Influence of the surrounding temperature":"Max. 95% humidity","Surge current resistance / at (8/20) μs":"1 kA","Product function / neutral conductor switching":"Yes","Mechanical service life (switching cycles) / typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=629301&mlfb=5SU9326-1CS63","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU9326-1CS63/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source for 5SU9326-1CS63?","answer":"The 5SL4363-7 is a 2-pole, 63 A, 30 mA RCBO from the same SENTRON family but with a B characteristic (3–5× In magnetic trip) instead of the C-curve on this part. The 5SL6563-7BB is a B-curve variant with a different residual type. If your circuit needs the C-curve inrush tolerance, the 5SU9326-1CS63 is the correct choice — the B-curve siblings will nuisance-trip on motor or capacitive loads."},{"question":"Will 5SU9326-1CS63 drop into a panel specified around 5SL4363-7?","answer":"Yes, the footprint is identical — both are 4 MW (72 mm wide) DIN-rail RCBOs with the same depth and terminal layout. The only difference is the tripping characteristic: C-curve on this part versus B-curve on the 5SL4363-7. No rewiring needed, but verify the load inrush profile before swapping."},{"question":"What compliance documentation does Siemens provide for 5SU9326-1CS63?","answer":"The part is CE-marked under the low-voltage directive, designed to EN 60898 and IEC 60947-2. It is halogen-free and silicon-free. Siemens provides a declaration of conformity and the product datasheet; RoHS and REACH compliance statements are available on request."},{"question":"Where can I buy 5SU9326-1CS63 and how is it quoted?","answer":"This RCBO is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time. Genuine Siemens, same part regardless of regional origin."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU9326-1CS63","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/5SU9326-1CS63 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}}