{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SM9322-6KN","brand":"Siemens","brandSlug":"siemens","productSlug":"5SM9322-6KN","canonicalUrl":"https://aoctrl.com/siemens/5SM9322-6KN","factsUrl":"https://aoctrl.com/api/mcp/products/5SM9322-6KN","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON RC unit electronic, 5SM9322-6KN, 2-pole, Type A, 40 A rated, 30 mA trip, 230 V AC, 50 Hz, instantaneous.","salesMarkdown":"The Siemens 5SM9322-6KN is a SENTRON RC unit electronic, a 2-pole residual current device (RCD) with a 40 A rated current and a 30 mA tripping threshold, Type A, for 230 V AC at 50 Hz. The instantaneous design means it trips with no intentional delay, so it's the right choice where fast disconnection is needed — typically on final circuits supplying socket outlets or handheld equipment. The 2-pole form factor snaps onto a DIN rail inside the distribution board. Rated 40 A continuous, it feeds directly from a 40 A upstream MCB or as a standalone RCD for a subcircuit. The 30 mA trip level provides additional fire and personnel protection on socket-outlet circuits. Power dissipation is 0.8 W per pole in the hot operating state, so thermal buildup in a crowded enclosure stays manageable — no forced cooling needed for normal residential or light commercial panels. The 40 A rating means this RC unit can carry a 40 A load continuously without overheating, matching a 40 A MCB upstream for full selectivity. Type A detection handles the pulsed DC from rectified circuits (computers, LED drivers, variable-speed drives), so it's not limited to purely sinusoidal faults. The 230 V AC, 50 Hz supply voltage is the standard single-phase European residential and light commercial mains.","metaTitle":"Siemens 5SM9322-6KN SENTRON RC Unit, 2-Pole, 40 A, 30 mA Typ","metaDescription":"Siemens 5SM9322-6KN SENTRON RC unit, 2-pole, Type A, 40 A rated, 30 mA trip, 230 V AC, 50 Hz. Current lifecycle stage. Available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"title":"5SM9322-6KN","description":"RC unit, 2-pole, type A, In: 40 A, 30 mA, Un AC: 230 V","Number Of Poles":"2","lifecycle_stage":"current","at AC rated value":"40 A","Product Brand Name":"SENTRON","Product Designation":"RC unit electronic","Design Of The Product":"Instantaneous","Residual Current Type":"A","Tripping Fault Current Rated Value":"30 mA","value range of the supply voltage at AC":"230 V","Value Range Of The Supply Voltage Frequency":"50 Hz","for rated value of the current at AC in hot operating state per pole":"0.8 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/41f66e1352fb81d8b1f27dc9c5d22baa.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=629172&mlfb=5SM9322-6KN"},"ai":{"faq":[{"question":"What is the rated current and trip sensitivity of 5SM9322-6KN?","answer":"The unit is rated 40 A continuous with a 30 mA residual trip current, Type A, instantaneous, for 230 V AC 50 Hz supply."},{"question":"Where can I buy 5SM9322-6KN?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the number of poles on 5SM9322-6KN?","answer":"It is a 2-pole device, switching both line and neutral on a single-phase circuit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SM9322-6KN","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/5SM9322-6KN 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}}