{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SV3746-6","brand":"Siemens","brandSlug":"siemens","productSlug":"5SV3746-6","canonicalUrl":"https://aoctrl.com/siemens/5SV3746-6","factsUrl":"https://aoctrl.com/api/mcp/products/5SV3746-6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SV3746-6, 4-pole RCCB, type A, In 63 A, 500 mA, Un AC 400 V, 10 kA SCCR, IP20, DIN-rail mount.","salesMarkdown":"The Siemens SENTRON 5SV3746-6 is a 4-pole residual current circuit breaker (RCCB), type A, rated 63 A with a 500 mA trip sensitivity and 400 V AC supply voltage. It carries a 10 kA short-circuit current rating and is designed for instantaneous operation — no intentional delay, so it responds to earth faults without coordination lag. The 500 mA residual sensitivity is on the higher side — suited for circuits with natural leakage (long cable runs, industrial heaters) where a 30 mA device would nuisance-trip. The 10 kA SCCR is the withstand rating under IEC 61008-1; the rated conditional short-circuit current is 0.8 kA per that standard. The maximum permissible series fuse is 100 A — upstream protection must be coordinated to that level. Occupies 4 modular width units at 60 mm grid spacing — 72 mm wide, 70 mm deep, 90 mm tall. Mounts on DIN rail (REG) in any position. IP20 with the distribution board installed and conductors connected; overvoltage category III. Silicon-free construction, which matters for coating-sensitive environments like automotive paint lines or semiconductor fab sub-panels. Supply connection can be top or bottom.","metaTitle":"Siemens 5SV3746-6 SENTRON RCCB, 4P, 63 A, 500 mA, 400 V AC","metaDescription":"Siemens SENTRON 5SV3746-6 RCCB, 4-pole, type A, 63 A, 500 mA, 400 V AC, 10 kA SCCR, IP20, active production, sourced 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":"72 mm","Height":"90 mm","Maximum":"45 °C","Minimum":"-25 °C","Grid Spacing":"60 mm","Number Of Poles":"4","lifecycle_stage":"current","Fastening Method":"DIN rail (REG)","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Maximum Permissible":"75 °C","Minimum Permissible":"-40 °C","Product Designation":"RCCB","protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage Category":"III","Design Of The Product":"Instantaneous","Product Feature Silicon-Free":"Yes","Short-Circuit Current Rating":"10 kA","Number Of Modular Width Units":"4","Position Of Power Supply Cord":"top or bottom","according to IEC 61008-1 rated value":"0.8 kA","Switching Function Short-Term Delayed":"No","Value Range Of The Operating Frequency":"50 Hz","value range of the supply voltage at AC":"230/400 V","Value Range Of The Supply Voltage Frequency":"50 Hz","Supply Voltage For Testing Equipment Minimum":"100 V","Mechanical Service Life (Operating Cycles) Typical":"10 000","Product Extension Installable Supplementary Devices":"Yes","Short-Circuit Current Of Series Fuse Maximum Permissible":"100 A","for rated value of the current at AC in hot operating state per pole":"3.9 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$140.64","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/a5428b70392542232233e406e6d777ba.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=478909&mlfb=5SV3746-6","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SV3746-6/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional alternative — the 5SL4363-7?","answer":"The 5SL4363-7 is a miniature circuit breaker (MCB), not an RCCB. It has 3 poles, 54 mm width, and a 10 kA SCCR, but it lacks residual current detection. The 5SV3746-6 is the correct part for earth-fault protection; the 5SL4363-7 is a different device class and cannot substitute."},{"question":"What is the depth of the 5SV3746-6?","answer":"70 mm installation depth, matching the overall depth dimension."},{"question":"What is the width of the 5SV3746-6?","answer":"72 mm, which corresponds to 4 modular width units on a 60 mm grid."},{"question":"Will the 5SV3746-6 drop into a panel designed for the 5SL4363-7?","answer":"No. The 5SL4363-7 is a 3-pole MCB at 54 mm wide (3 MW); the 5SV3746-6 is a 4-pole RCCB at 72 mm wide (4 MW). The footprint, function, and wiring scheme are different — panel rework is required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SV3746-6","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/5SV3746-6 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}}