{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SM2626-8","brand":"Siemens","brandSlug":"siemens","productSlug":"5SM2626-8","canonicalUrl":"https://aoctrl.com/siemens/5SM2626-8","factsUrl":"https://aoctrl.com/api/mcp/products/5SM2626-8","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SM2626-8, selective RCD unit, 2-pole, 63 A AC rated, 300 mA Type A, 2 MW, IP20, -40 to 75 °C.","salesMarkdown":"## Selective RCD for feeder protection It is designed for selective (time-delayed) tripping to coordinate with downstream RCDs — that means it holds during a downstream fault so only the branch trips, keeping the feeder live. The 300 mA threshold suits it for feeder or submain protection where a 30 mA unit would nuisance-trip on cable leakage. ## Derating and thermal limits At 40 °C the unit carries 58.6 A; at 70 °C it derates to 50.4 A. The full rated 63 A applies only at the reference ambient. ## Coordination with 5SL4 breakers This RCD is specified as a variation for 5SL4 miniature circuit breakers — it mounts directly onto the 5SL4 busbar stack without additional wiring. The 2-pole design and 70 mm depth match the 5SL4 footprint. If your BOM calls for a 5SL4 MCB, this RCD is the intended companion for selective earth-fault protection.","metaTitle":"Siemens 5SM2626-8 SENTRON RCD, 2-pole, 63 A, 300 mA, Type A","metaDescription":"Siemens 5SM2626-8 SENTRON selective RCD unit, 2-pole, 63 A AC rated, 300 mA Type A, IP20. Current production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"70 mm","Width":"70 mm","title":"5SM2626-8","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"No","description":"RC unit for 5SL4, 2-pole, type A, selective, In: 63 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":"63 A","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Product Variations":"for 5SL4","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":"A","at 40 °C rated value":"58.6 A","at 45 °C rated value":"58.59 A","at 50 °C rated value":"56.7 A","at 55 °C rated value":"54.81 A","at 60 °C rated value":"53.55 A","at 65 °C rated value":"52.29 A","at 70 °C rated value":"50.4 A","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 Current Resistance Rated Value":"5 kA","Surge Voltage Resistance Rated Value":"4 000 V","Value Range Of The Operating Frequency":"50/60 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":"3 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/045ebf1e9b36f452309d20cb9ed587e6.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=181982&mlfb=5SM2626-8"},"ai":{"faq":[{"question":"What is the depth of 5SM2626-8?","answer":"The depth is 70 mm, with an installation depth also listed at 70 mm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SM2626-8","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/5SM2626-8 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}}