{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SM2622-8","brand":"Siemens","brandSlug":"siemens","productSlug":"5SM2622-8","canonicalUrl":"https://aoctrl.com/siemens/5SM2622-8","factsUrl":"https://aoctrl.com/api/mcp/products/5SM2622-8","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON, selective RCD-unit, 2-pole, 40 A AC rated, 300 mA Type A, 50/60 Hz, IP20, overvoltage category III.","salesMarkdown":"Selective design means it coordinates with downstream RCDs — on a ground fault the downstream device trips first, keeping the rest of the distribution board live. That matters in a mill or plant where an unplanned downtime on a single branch shouldn't drop the whole panel. The 460 V insulation voltage (Ui) covers most 400 V three-phase networks. Full 40 A rating holds up to 40 °C ambient. Above that, the current tapers: 37.2 A at 45 °C, 36 A at 50 °C, 34 A at 55 °C, 34 A at 60 °C, 33.2 A at 65 °C, and 32 A at 70 °C. Mounts in any position, fastening type REG (standard DIN rail). Depth is 70 mm, so it fits in shallow enclosures. IP20 rated, with the condition that the distribution board is installed and conductors are connected.","metaTitle":"Siemens 5SM2622-8 SENTRON RCD, 40 A, 300 mA, Type A, Selecti","metaDescription":"Siemens 5SM2622-8 SENTRON selective RCD, 2-pole, 40 A rated, 300 mA Type A, 50/60 Hz. IP20, overvoltage cat III. Current production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"70 mm","Width":"71 mm","title":"5SM2622-8","Height":"90 mm","Maximum":"45 °C","Minimum":"-25 °C","Sealable":"No","description":"RC unit for 5SY, 2-pole, type A, selective, In: 40 A, 300 mA, Un AC: 230 V","Number Of Poles":"2","lifecycle_stage":"current","Fastening Method":"REG","Mounting Position":"any","at AC rated value":"40 A","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"2","Maximum Permissible":"75 °C","Minimum Permissible":"-40 °C","Product Designation":"RCD-unit","protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage Category":"III","Design Of The Product":"Selective","Residual Current Type":"A","at 40 °C rated value":"37.2 A","at 45 °C rated value":"37.2 A","at 50 °C rated value":"36 A","at 55 °C rated value":"34.8 A","at 60 °C rated value":"34 A","at 65 °C rated value":"33.2 A","at 70 °C rated value":"32 A","OFF-delay time adjustable":"No","Number Of Modular Width Units":"2","Rated Fault Current Adjustable":"No","Protection Function False Tripping":"Yes","Tripping Fault Current Rated Value":"300 mA","insulation voltage (Ui) rated value":"460 V","Surge Current Resistance Rated Value":"5 kA","Surge Voltage Resistance Rated Value":"4 000 V","Value Range Of The Operating Frequency":"50/60 Hz","reference code according to IEC 81346-2":"F","Value Range Of The Supply Voltage Frequency":"50 Hz","Supply Voltage For Testing Equipment Minimum":"195 V","Mechanical Service Life (Operating Cycles) Typical":"10 000","for rated value of the current at AC in hot operating state per pole":"1.9 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$57.15","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/d7f4efdfb236cd8eaacd8f870933fc04.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=433857&mlfb=5SM2622-8"},"ai":{"faq":[{"question":"What is the 5SM2622-8 used for?","answer":"It is a selective RCD (residual current device) for 2-pole circuits, rated 40 A with a 300 mA Type A trip. Selective design ensures coordination with downstream RCDs so only the faulty branch trips, keeping the rest of the distribution board live."},{"question":"What are the key specifications of the 5SM2622-8?","answer":"2-pole, 40 A AC rated, 300 mA Type A residual current, 50/60 Hz, 460 V insulation voltage, 5 kA surge current resistance, overvoltage category III, pollution degree 2, IP20, 2 modular width units, depth 70 mm."},{"question":"Where can I buy the 5SM2622-8?","answer":"The part is sourced and quoted to order through independent distribution. Availability and current pricing are confirmed at quote time against an RFQ."},{"question":"Does the 5SM2622-8 have an adjustable trip current or time delay?","answer":"No. The rated fault current is fixed at 300 mA and the off-delay time is not adjustable. The selective characteristic is inherent to the design, not a field-configurable parameter."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SM2622-8","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/5SM2622-8 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}}