{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SM9325-6KK","brand":"Siemens","brandSlug":"siemens","productSlug":"5SM9325-6KK","canonicalUrl":"https://aoctrl.com/siemens/5SM9325-6KK","factsUrl":"https://aoctrl.com/api/mcp/products/5SM9325-6KK","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SM9 series RC unit electronic, 2-pole, type A, In: 63 A, 30 mA, Un AC: 400 V, instantaneous design.","salesMarkdown":"## What this RC unit does in the panel The Siemens SENTRON 5SM9325-6KK is a 2-pole residual current unit (RC unit) with an electronic, instantaneous trip design, rated 63 A at 400 V AC and 30 mA sensitivity, type A for AC and pulsating DC fault currents. It sits upstream of a downstream MCB or as a stand-alone residual current protection block in a 50 Hz distribution board — the 30 mA threshold covers personnel protection (indirect contact) per IEC 60364, while the 63 A continuous rating matches the feeder or submain it protects. ## Thermal derating — what the temperature row tells you This unit holds 58.59 A at both 40 °C and 45 °C, then begins a gradual derating curve: 56.7 A at 50 °C, 54.81 A at 55 °C, 53.55 A at 60 °C, 52.29 A at 65 °C, and 50.4 A at 70 °C. No phase-out or last-time-buy notice is on record. ## What type A means for the installation That covers most modern loads with rectifiers — VFDs, switched-mode power supplies, LED drivers, washing machine electronics — where a simple AC-type RCD would be blind to the pulsating DC component. If your sub-distribution feeds any single-phase electronics, type A is the minimum requirement under IEC 60364-5-53. ## Panel integration — 2-pole, DIN-rail footprint Two-pole design (line and neutral switched) in the standard SENTRON 5SM9 modular housing. The electronic trip needs no external auxiliary supply — it self-powers from the line voltage. Verify the downstream MCB's breaking capacity coordinates with the RC unit's short-circuit withstand; Siemens recommends a 63 A or smaller MCB with at least 6 kA breaking capacity per the 5SM9 coordination tables.","metaTitle":"Siemens 5SM9325-6KK SENTRON RC Unit, 2-Pole, 63 A, 30 mA, Ty","metaDescription":"Siemens SENTRON 5SM9325-6KK RC unit, 2-pole, type A, 63 A, 30 mA, 400 V AC. Current lifecycle stage. Available 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":"5SM9325-6KK","at 40 Cel":"58.59 A","at 45 Cel":"58.59 A","at 50 Cel":"56.7 A","at 55 Cel":"54.81 A","at 60 Cel":"53.55 A","at 65 Cel":"52.29 A","at 70 Cel":"50.4 A","Rated Value":"50 Hz","description":"RC unit, 2-pole, type A, In: 63 A, 30 mA, Un AC: 400 V","Number of poles":"2","lifecycle_stage":"current","Product brand name":"SENTRON","Product designation":"RC unit electronic","Design of the product":"Instantaneous","Type of fault current":"A","circuit-breaker / Design":"5SM9","Current / at AC / rated value":"63 A","Supply voltage / at AC / rated value":"400 V","Tripping residual current / rated value":"30 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/2e2b37f5d88cb115447e4587b0cceb25.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=629177&mlfb=5SM9325-6KK"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SM9325-6KK","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/5SM9325-6KK 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}}