{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SM2622-2","brand":"Siemens","brandSlug":"siemens","productSlug":"5SM2622-2","canonicalUrl":"https://aoctrl.com/siemens/5SM2622-2","factsUrl":"https://aoctrl.com/api/mcp/products/5SM2622-2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON selective RCD unit, 2-pole, type AC, 40 A rated current, 300 mA fault current, 230 V AC operating voltage, order code 5SM2622-2.","salesMarkdown":"The Siemens 5SM2622-2 is a 2-pole selective residual-current device (RCD) from the SENTRON family, designed to mount on a DIN rail alongside a 5SY miniature circuit breaker. It is rated for 40 A at AC and trips at a 300 mA fault current — a combination used where you need earth-fault protection but want to avoid nuisance trips from normal leakage or transient surges on the line. The selective design (type S) means it delays tripping slightly, so a downstream RCD or RCBO clears a fault first. That makes the 5SM2622-2 a good fit for the incoming feed of a sub-distribution board where you want coordination — not the first device to trip on a ground fault. Rated at 40 A continuous, this RCD handles the full load current of a typical lighting or general-purpose sub-feed. The 300 mA trip threshold is above the leakage of most hardwired equipment, so it won't drop out on cable capacitance or filter leakage — but it still provides personnel protection in industrial environments where 30 mA devices might nuisance-trip. Insulation voltage is rated at 460 V with a 4 kV surge withstand (overvoltage category III), so the unit is suitable for fixed-installation panels fed from the utility grid — not just final circuits. Pollution degree 2 means it expects a controlled environment inside the enclosure, which is standard for distribution boards. It is designed as a companion to the 5SY MCB — the 5SM2622-2 clips alongside it and shares the same busbar footprint. Fastening method is standard rail-mount (REG). No sealable option — if your site requires lockable isolation, you'll need a separate lockout device on the upstream breaker.","metaTitle":"Siemens 5SM2622-2 SENTRON RCD Unit, 40 A, 300 mA, 2-Pole","metaDescription":"Siemens 5SM2622-2 SENTRON selective RCD unit, 2-pole, type AC, 40 A rated, 300 mA fault current, 230 V AC. Active production. 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":"5SM2622-2","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"No","description":"RC unit for 5SY, 2-pole, type AC, selective, In: 40 A, 300 mA, Un AC: 230 V","Design Of Pole":"2 poles","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","Product Variations":"for 5SY","Degree Of Pollution":"2","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":"AC","OFF-delay time adjustable":"No","For Testing Equipment Minimum":"195 V","Number Of Modular Width Units":"2","Position Of Power Supply Cord":"top or bottom","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 Voltage Resistance Rated Value":"4 000 V","Value Range Of The Operating Frequency":"50 Hz","Type Of Voltage Of The Operating Voltage":"AC","Value Range Of The Supply Voltage Frequency":"50 Hz","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":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/e5f83583ae0780b6caa1d6f59959546e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=177900&mlfb=5SM2622-2"},"ai":{"faq":[{"question":"Where can I buy the 5SM2622-2 and get a price?","answer":"The 5SM2622-2 is sourced and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time through independent distribution channels."},{"question":"What is the temperature range of the 5SM2622-2?","answer":"The 5SM2622-2 operates from -40 °C to 75 °C, covering most indoor and sheltered outdoor installations."},{"question":"Will the 5SM2622-2 drop into a panel specified for the 5SU9354-7KK16?","answer":"No — the 5SU9354-7KK16 is an RCBO (RCD + MCB combined) with a different depth (77 mm vs 70 mm), a 230/240 V rating, and an instantaneous trip characteristic. The 5SM2622-2 is a bare RCD unit that requires a separate 5SY MCB alongside it, so the panel layout and wiring differ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SM2622-2","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/5SM2622-2 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}}