{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SM9325-0KN","brand":"Siemens","brandSlug":"siemens","productSlug":"5SM9325-0KN","canonicalUrl":"https://aoctrl.com/siemens/5SM9325-0KN","factsUrl":"https://aoctrl.com/api/mcp/products/5SM9325-0KN","rawCanonicalId":null},"summary":{"shortDescription":"SENTRON 5SM9325-0KN RC unit electronic, 2-pole, type AC, In: 63 A, 30 mA, Un AC: 230 V, 50 Hz, instantaneous design.","salesMarkdown":"The SENTRON 5SM9325-0KN is a 2-pole residual current unit (RC unit electronic) rated for 63 A at 230 V AC, 50 Hz, with a 30 mA tripping threshold for AC fault currents. Its instantaneous design means it trips without intentional delay when the residual current exceeds 30 mA — no time-grading for selectivity, so it's a straightforward fit for branch circuits where fast disconnection is the priority, not coordination with downstream RCDs. The 63 A rating covers the full incoming supply for a sub-distribution board or a high-load single-phase circuit — most domestic RCDs top out at 40 A or 63 A, so this sits at the upper end. Type AC means it detects sinusoidal AC residual currents only; if the downstream load includes electronics, variable-speed drives, or rectifiers that generate pulsed DC fault currents, a Type A or Type F unit would be needed instead. ## Panel integration Width is two modular units (36 mm), leaving adjacent slots for the upstream MCB or main switch. No neutral bar required — the unit switches the neutral internally.","metaTitle":"SENTRON 5SM9325-0KN RC Unit, 2-Pole, 63 A, 30 mA, 230 V AC","metaDescription":"SENTRON 5SM9325-0KN RC unit electronic, 2-pole, type AC, 63 A rated current, 30 mA tripping residual current, 230 V AC. Current lifecycle stage. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"title":"5SM9325-0KN","Rated Value":"50 Hz","description":"RC unit, 2-pole, type AC, In: 63 A, 30 mA, Un AC: 230 V","Number of poles":"2","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"RC unit electronic","at AC / rated value":"230 V","Design of the product":"Instantaneous","Type of fault current":"AC","circuit-breaker / Design":"5SM9","Current / at AC / rated value":"63 A","Tripping residual current / rated value":"30 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/408db74d93296aee4e9fb3f020344328.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=629176&mlfb=5SM9325-0KN"},"ai":{"faq":[{"question":"Where can I buy 5SM9325-0KN and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What does the 30 mA trip rating mean for installation?","answer":"30 mA is the standard threshold for additional protection against direct contact in final circuits per IEC 60364. It provides personal shock protection while avoiding nuisance tripping on normal leakage from fixed appliances."},{"question":"Will 5SM9325-0KN drop into a panel specified for 5SQ2670-2YA63?","answer":"No — 5SQ2670-2YA63 is a 4-pole RCBO (overcurrent + residual) with a C-curve MCB and 400 V rating, while 5SM9325-0KN is a 2-pole standalone RCD at 230 V. They are not footprint- or function-interchangeable without rewiring the panel."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SM9325-0KN","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/5SM9325-0KN 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}}