{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SV3446-6LA","brand":"Siemens","brandSlug":"siemens","productSlug":"5SV3446-6LA","canonicalUrl":"https://aoctrl.com/siemens/5SV3446-6LA","factsUrl":"https://aoctrl.com/api/mcp/products/5SV3446-6LA","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SV3446-6LA, 4-pole RCCB, 63 A, 100 mA Type A, instantaneous, 10 kA SCCR, 50 Hz, DIN rail mount.","salesMarkdown":"The Siemens 5SV3446-6LA is a 4-pole residual current circuit breaker (RCCB) from the SENTRON family, rated 63 A at 50 Hz with a 100 mA Type A trip characteristic. That 100 mA sensitivity means it catches sinusoidal AC fault currents and pulsating DC fault currents — the kind you get from rectified loads like VFDs, switching power supplies, or single-phase drives. The instantaneous trip (no time delay) clears fast, but it also means you won't use it downstream of a delayed RCCB without a selectivity study. Snaps onto standard DIN rail (REG). You can feed it from top or bottom — no orientation restriction. OVC III (overvoltage category III) means it's rated for the fixed-installation side of the meter, not downstream equipment. Silicon-free construction, so no outgassing worries in sealed enclosures near sensitive contacts. ## Thermal derating you need to know This RCCB holds its full 63 A rating from 40 °C up through 60 °C. At 65 °C it derates to 57.35 A; at 70 °C it drops to 48.8 A. The storage range is wider: -40 °C to 75 °C, but that's for shelf or transit, not running. Operating ambient is -25 °C to 45 °C.","metaTitle":"Siemens 5SV3446-6LA SENTRON RCCB, 4P, 63 A, 100 mA, Type A,","metaDescription":"Siemens SENTRON 5SV3446-6LA 4-pole RCCB, 63 A rated, 100 mA Type A, 10 kA SCCR, instantaneous, 50 Hz, DIN rail. 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":"72 mm","title":"5SV3446-6LA","Height":"90 mm","Maximum":"45 °C","Minimum":"-25 °C","description":"Residual current operated circuit breaker, 4-pole, Type A, In: 63 A, 100 mA, Un AC: 400 V, with thermal overload protection","Number Of Poles":"4","lifecycle_stage":"current","Fastening Method":"DIN rail (REG)","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Product Variations":"With thermal overload protection","Maximum Permissible":"75 °C","Minimum Permissible":"-40 °C","Operating Frequency":"50 Hz","Product Designation":"RCCB","at AC / rated value":"63 A","protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage Category":"III","Design Of The Product":"Instantaneous","Residual Current Type":"A","I2t value / permissible":"110 000 A²·s","at 40 °C / rated value":"63 A","at 45 °C / rated value":"63 A","at 50 °C / rated value":"63 A","at 55 °C / rated value":"63 A","at 60 °C / rated value":"63 A","at 65 °C / rated value":"57.35 A","at 70 °C / rated value":"48.8 A","Short-Circuit Current Rating":"10 kA","Number Of Modular Width Units":"4","Product Feature / Silicon-Free":"Yes","For Testing Equipment / Minimum":"100 V","Position / Of Power Supply Cord":"top or bottom","Let-Through Current / Permissible":"7 100 kA","according to EN 60898 / rated value":"0.8 kA","Tripping Fault Current / Rated Value":"100 mA","Supply Voltage Frequency / Rated Value":"50 Hz","Surge Current Resistance / Rated Value":"1 kA","according to IEC 61008-1 / rated value":"0.8 kA","Switching Function / Short-Term Delayed":"No","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/530f9cd380e25e78cfdd21d81d643e98.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=555548&mlfb=5SV3446-6LA"},"ai":{"faq":[{"question":"What is the 5SV3446-6LA's depth?","answer":"70 mm, which matches the installation depth. The width is 72 mm (4 modular units) and height is 90 mm."},{"question":"What does Type A residual current mean on this RCCB?","answer":"Type A detects both sinusoidal AC fault currents and pulsating DC fault currents — the kind produced by rectified loads like VFDs, switching power supplies, and single-phase drives. It won't catch smooth DC faults (that's Type B territory)."},{"question":"How do I get pricing and availability for the 5SV3446-6LA?","answer":"Submit an RFQ through this listing. We source the part through independent distribution and confirm current pricing and lead time at quote time — no stock count or price is published here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SV3446-6LA","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/5SV3446-6LA 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}}