{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SM9332-6KK","brand":"Siemens","brandSlug":"siemens","productSlug":"5SM9332-6KK","canonicalUrl":"https://aoctrl.com/siemens/5SM9332-6KK","factsUrl":"https://aoctrl.com/api/mcp/products/5SM9332-6KK","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SM9 series, RC unit electronic, 3-pole, type A, In: 40 A, 30 mA, Un AC: 400 V.","salesMarkdown":"The Siemens 5SM9332-6KK is a SENTRON RC unit electronic — a 3-pole residual current device (RCD) with a 40 A rated current and 30 mA trip threshold, designed for 400 V AC systems. The 30 mA sensitivity is the standard for personnel protection (indirect contact) per IEC 60364. ## Thermal derating and continuous current The 5SM9332-6KK carries a nominal 40 A rating, but the continuous current it can pass without nuisance tripping depends on the ambient temperature inside the enclosure. At 40 °C it's rated for 37.2 A; at 45 °C it holds at 37.2 A; at 50 °C it drops to 36 A; at 55 °C it's 34.8 A; at 60 °C it's 34 A; at 65 °C it's 33.2 A; and at 70 °C it's 32 A. If this unit is going into a crowded DIN-rail panel with other heat sources, use the 50 °C or 55 °C column for your load calculation — the nominal 40 A only applies at the reference ambient (typically 30 °C or 35 °C, per the standard). This is a 3-pole unit in the 5SM9 design family, intended for DIN-rail mounting in a distribution board or sub-distribution panel. The 30 mA trip and type A characteristic make it suitable for circuits feeding single-phase electronics where standard AC-only RCDs (type AC) would be blind to pulsating DC fault currents. No neutral conductor switching — it's a 3-pole device for 3-phase 400 V systems without switched neutral.","metaTitle":"Siemens 5SM9332-6KK SENTRON RC Unit, 40 A, 30 mA, Type A","metaDescription":"Siemens SENTRON 5SM9332-6KK RC unit electronic, 3-pole, type A, 40 A rated, 30 mA trip, 400 V AC. Current lifecycle stage. Sourced 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":"5SM9332-6KK","at 40 Cel":"37.2 A","at 45 Cel":"37.2 A","at 50 Cel":"36 A","at 55 Cel":"34.8 A","at 60 Cel":"34 A","at 65 Cel":"33.2 A","at 70 Cel":"32 A","Rated Value":"50 Hz","description":"RC unit, 3-pole, type A, In: 40 A, 30 mA, Un AC: 400 V","Number of poles":"3","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":"40 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/dd9f90e5eec58eead33b0bd7d9c55f51.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=629183&mlfb=5SM9332-6KK"},"ai":{"faq":[{"question":"What is the 5SM9332-6KK rated current at 40 °C?","answer":"At 40 °C the continuous current rating is 37.2 A. The nominal 40 A rating applies at the standard reference ambient."},{"question":"What does type A mean on this RCD?","answer":"Type A detects sinusoidal AC fault currents and pulsating DC fault currents up to 6 mA smooth DC. This covers loads with rectifiers, VFDs, and switched-mode power supplies where a standard type AC RCD may not trip."},{"question":"Where can I buy the 5SM9332-6KK?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SM9332-6KK","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/5SM9332-6KK 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}}