{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SM2735-8","brand":"Siemens","brandSlug":"siemens","productSlug":"5SM2735-8","canonicalUrl":"https://aoctrl.com/siemens/5SM2735-8","factsUrl":"https://aoctrl.com/api/mcp/products/5SM2735-8","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON selective RCD unit, 3-pole, 63 A, 500 mA Type A, IP20, 50/60 Hz.","salesMarkdown":"## Selective RCD for feeder protection Its selective design (short-time delayed) coordinates with downstream RCDs so that only the faulted branch trips, keeping the rest of the distribution board live — critical for feeder circuits in industrial panels where nuisance tripping of the main supply is unacceptable. Rated insulation voltage is 460 V, and it handles surge currents up to 5 kA and surge voltages up to 4000 V, making it suitable for overvoltage category III environments. The operating frequency range covers 50/60 Hz. The unit is not adjustable for rated fault current or OFF-delay time, and it is not sealable — it's a fixed-setting device for straightforward selective coordination. Depth is 70 mm, width 107 mm, height 90 mm — fits standard distribution board cutouts. Rated current of 63 A applies at 40 °C ambient. Above that, derate per the published curve: 58.6 A at 40 °C, 56.7 A at 50 °C, 53.55 A at 60 °C, and 50.4 A at 70 °C. If the panel runs hot, factor the derated value into the load calculation.","metaTitle":"Siemens SENTRON 5SM2735-8 Selective RCD, 63 A, 500 mA, Type","metaDescription":"Siemens SENTRON 5SM2735-8 selective RCD unit, 63 A rated current, 500 mA Type A residual current, 3-pole, IP20. Current lifecycle stage. 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":"107 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"No","Design Of Pole":"3 poles","Number Of Poles":"3","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 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":"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":"3","Position Of Power Supply Cord":"top or bottom","Rated Fault Current Adjustable":"No","Protection Function False Tripping":"Yes","Tripping Fault Current Rated Value":"500 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","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,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=47285&mlfb=5SM2735-8","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SM2735-8/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 5SM2735-8?","answer":"Submit an RFQ through this listing; pricing and availability are confirmed at quote time through our independent distribution channels."},{"question":"What is 5SM2735-8's listed depth?","answer":"The depth is 70 mm."},{"question":"What is 5SM2735-8's listed width?","answer":"The width is 107 mm."},{"question":"Will 5SM2735-8 drop into a panel that was specified around 5SL4363-7 without rewiring?","answer":"The 5SM2735-8 is a selective RCD (Type A, 500 mA, 63 A), while the 5SL4363-7 is a standard MCB — they serve different protection functions and are not drop-in replacements. Rewiring and coordination review would be required."},{"question":"What compliance documentation does this brand provide for 5SM2735-8?","answer":"Siemens SENTRON products typically include RoHS, REACH, and IEC compliance documentation. Specific certificates for this order code can be requested with the RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SM2735-8","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/5SM2735-8 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}