{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SM2346-0","brand":"Siemens","brandSlug":"siemens","productSlug":"5SM2346-0","canonicalUrl":"https://aoctrl.com/siemens/5SM2346-0","factsUrl":"https://aoctrl.com/api/mcp/products/5SM2346-0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SM2346-0, 4-pole residual current device (RCD), type AC, rated 63 A at 400 V AC, 30 mA trip threshold, 3 MW units wide.","salesMarkdown":"The Siemens SENTRON 5SM2346-0 is a 4-pole residual current device (RCD) rated for 63 A at 400 V AC with a 30 mA trip threshold, type AC. It is designed as a companion RC unit for the 5SL4 miniature circuit breaker series, fitting into the same modular enclosure footprint at 3 modular width units wide. The 30 mA trip threshold is the standard sensitivity for personnel protection (indirect contact) per IEC 60364, catching leakage to earth before it reaches a dangerous level. For circuits with rectifiers, VFDs, or switched-mode supplies, a type A or F RCD would be needed instead. ## Temperature derating — the real continuous current Above that, the device derates: 58.6 A at 40 °C, 58.59 A at 45 °C, 56.7 A at 50 °C, 54.81 A at 55 °C, 53.55 A at 60 °C, 52.29 A at 65 °C, and 50.4 A at 70 °C (–). If the panel ambient runs at 50 °C, the effective continuous rating drops to 56.7 A — a 10% reduction that matters for a fully loaded circuit. The 70 mm depth and 123 mm width match the 5SL4 breaker footprint, so it clips directly alongside or downstream of the companion MCB in the same distribution board. Installation depth is 70 mm.","metaTitle":"Siemens 5SM2346-0 SENTRON RCD, 4P, 63A, 30mA, Type AC","metaDescription":"Siemens SENTRON 5SM2346-0 residual current device, 4-pole, 63 A rated, 30 mA trip, type AC, 400 V. Active 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":"123 mm","title":"5SM2346-0","Height":"90 mm","Maximum":"45 °C","Minimum":"-5 °C","description":"RC unit for 5SL4, 4-pole, type AC, In: 63 A, 30 mA, Un AC: 400 V","Number Of Poles":"4","lifecycle_stage":"current","Fastening Method":"REG","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Maximum Permissible":"75 °C","Minimum Permissible":"-40 °C","at AC / rated value":"63 A","Overvoltage Category":"III","Residual Current Type":"AC","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","Number Of Modular Width Units":"3","For Testing Equipment / Minimum":"195 V","Tripping Fault Current / Rated Value":"30 mA","Mechanical Service Life (Switching Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/69f8d0a740198021d419581354eb3aae.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=507527&mlfb=5SM2346-0"},"ai":{"faq":[{"question":"Where can I buy 5SM2346-0?","answer":"The 5SM2346-0 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm position."},{"question":"What is the difference between 5SM2346-0 and 5SL4363-7?","answer":"The 5SM2346-0 is a 4-pole RCD (residual current device) rated 63 A, 30 mA, type AC. The 5SL4363-7 is a 3-pole miniature circuit breaker (MCB) with C-curve trip characteristic, 63 A, 10 kA breaking capacity — a different device class. They are not substitutes; the 5SM2346-0 is designed as an RC unit to pair with a 5SL4 MCB in the same enclosure."},{"question":"What are the physical dimensions of 5SM2346-0?","answer":"The 5SM2346-0 measures 70 mm depth, 123 mm width, and 90 mm height. It occupies 3 modular width units on a DIN rail."},{"question":"Will 5SM2346-0 fit in a panel designed for 5SL4363-7?","answer":"No — the 5SM2346-0 is 123 mm wide (4-pole RCD) versus 54 mm wide for the 3-pole 5SL4363-7 MCB. The RCD occupies 3 MW units; the MCB occupies 3 MW units but is physically narrower. They are different device types and the panel cutout or DIN-rail allocation would need to accommodate the wider RCD."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SM2346-0","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/5SM2346-0 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}}