{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SM9326-0","brand":"Siemens","brandSlug":"siemens","productSlug":"5SM9326-0","canonicalUrl":"https://aoctrl.com/siemens/5SM9326-0","factsUrl":"https://aoctrl.com/api/mcp/products/5SM9326-0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON RC unit electronic for 5SL4, 2-pole type AC, In: 63 A, IΔn: 30 mA, Un AC: 400 V, 50 Hz, instantaneous, standard rail mounting.","salesMarkdown":"The Siemens 5SM9326-0 is a SENTRON residual-current unit (RC unit) designed as an electronic add-on for the 5SL4 miniature circuit breaker. It provides earth-leakage protection in a 2-pole, type AC configuration, rated at 63 A and 30 mA tripping current on a 400 V AC, 50 Hz supply. The unit is instantaneous — no intentional delay — so it trips within the first cycle on a sinusoidal AC fault. Mounting is standard rail (DIN) with a 36 mm width (2 MW). The unit sits above the MCB, fed from the top. Terminal torque is 2.5–3 N·m; solid conductors up to 35 mm² and stranded up to 25 mm² are accepted. Because this is an RC unit that mates mechanically and electrically with the 5SL4 miniature circuit breaker, the panel layout must place the 5SM9326-0 directly above the 5SL4 on the same DIN rail. The supply cord connects to the top terminals; the MCB feeds the load side below. Verify that the 5SL4 breaker is the correct base unit — the 5SM9326-0 is not a standalone device and will not function without its paired MCB.","metaTitle":"Siemens 5SM9326-0 SENTRON RC Unit, 2P, 63 A, 30 mA, 400 V","metaDescription":"Siemens 5SM9326-0 SENTRON RC unit electronic for 5SL4, 2-pole type AC, rated 63 A / 30 mA / 400 V AC, 50 Hz. Current 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":"70 mm","Solid":"0.75 ... 35 mm²","Width":"36 mm","title":"5SM9326-0","Height":"100 mm","Stranded":"0.75 ... 25 mm²","Rated Value":"50 Hz","description":"RC unit for 5SL4, 2-pole, type AC, In: 63 A, 30 mA, Un AC: 400 V","Mounting type":"Standard rail mounting","During Storage":"-40 ... +75 °C","Number of poles":"2","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Product variations":"DI unit, type AC, 0.3...63 A, 2P, 30 mA","Ambient temperature":"-25 ... +55 °C","Product designation":"RC unit electronic for 5SL4","Protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage category":"III","Design of the product":"Instantaneous","Number of width units":"2","Type of fault current":"AC","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","circuit-breaker / Design":"5SM9","Current / at AC / rated value":"63 A","Product feature / silicon-free":"Yes","Position / of power supply cord":"Top, above miniature circuit breaker","Supply voltage / at AC / rated value":"400 V","Surge current resistance / rated value":"3 kA","Switching function / short-term delayed":"No","Tripping residual current / rated value":"30 mA","Tightening torque / with screw-type terminals":"2.5 ... 3 N·m","Size of installation devices / acc. to DIN 43880":"1","Supply voltage / for testing equipment / minimum":"125 V","Mechanical service life (switching cycles) / typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/fe71afc2f90fb40d3e9c2a37bc9f0d01.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=629180&mlfb=5SM9326-0"},"ai":{"faq":[{"question":"Where can I buy the 5SM9326-0 and how is it quoted?","answer":"The 5SM9326-0 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What are the key ratings of the 5SM9326-0?","answer":"The unit is rated 63 A, 30 mA residual current, 400 V AC, 50 Hz, type AC, instantaneous, with a surge current resistance of 3 kA and mechanical life of 10 000 switching cycles."},{"question":"Will the 5SM9326-0 drop into a panel specified around the 5SL6563-7BB?","answer":"The 5SM9326-0 is an RC unit for the 5SL4 MCB, while the 5SL6563-7BB is a complete 2-pole miniature circuit breaker. They are not direct drop-in replacements; the 5SM9326-0 requires a 5SL4 base unit and occupies the same 36 mm width but with a different depth (70 mm vs 76 mm) and height (100 mm vs 90 mm). Rewiring may be needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SM9326-0","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/5SM9326-0 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}}