{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SV3446-8","brand":"Siemens","brandSlug":"siemens","productSlug":"5SV3446-8","canonicalUrl":"https://aoctrl.com/siemens/5SV3446-8","factsUrl":"https://aoctrl.com/api/mcp/products/5SV3446-8","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SV3446-8, selective RCCB, 4-pole, Type A, 63 A rated, 100 mA trip, 10 kA SCCR, DIN rail mount.","salesMarkdown":"The \"selective\" designation means it's designed with a deliberate time delay — it holds through short-duration earth faults so the downstream RCCB trips first, keeping the rest of the sub-distribution board live. That's your coordination play: you install this at the feeder or main incomer position, and standard RCCBs downstream handle the branch faults. Type A detection covers sinusoidal AC and pulsating DC residual currents, which is the minimum for circuits with single-phase rectifiers or switching power supplies. ## DIN rail fit and thermal derating Mounting position is any orientation, so it fits tight corner spots in the panel. Thermal derating is flat at 63 A from 40 °C up through 60 °C ambient; at 65 °C it drops to 57.35 A, and at 70 °C to 48.8 A. That means in a well-ventilated panel at typical 40–50 °C you get full rated current with no headroom loss. Supply connection can be top or bottom feed — no orientation restriction on the line/load side. ## Compliance and standards coverage Rated according to IEC 61008-1 with a 0.8 kA conditional rating under that standard, and also carries an EN 60898 rating at 0.8 kA. Overvoltage category III suits fixed installation in distribution boards. Surge current resistance is rated at 5 kA, and the permissible let-through energy is 7 100 kA — both figures for coordination studies if you're doing a full selective arc-flash analysis.","metaTitle":"Siemens SENTRON 5SV3446-8 RCCB, 63A, 100mA, Type A, Selectiv","metaDescription":"Siemens SENTRON 5SV3446-8 selective RCCB, 63 A rated, 100 mA trip, Type A, 4-pole, 10 kA SCCR. Current lifecycle stage, available to order. Quoted on request.","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":"5SV3446-8","Height":"90 mm","Maximum":"45 °C","Minimum":"-25 °C","description":"Residual current operated circuit breaker, 4-pole, type A, selective, In: 63 A, 100 mA, Un AC: 400 V","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","acc. to IEC 81346-2":"F","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":"Selective","Residual Current Type":"A","acc. to DIN EN 61346-2":"F","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","acc. to EN 60898 / rated value":"0.8 kA","For Testing Equipment / Minimum":"100 V","Position / Of Power Supply Cord":"top or bottom","Let-Through Current / Permissible":"7 100 kA","Tripping Fault Current / Rated Value":"100 mA","Supply Voltage Frequency / Rated Value":"50 Hz","Surge Current Resistance / Rated Value":"5 kA","according to IEC 61008-1 / rated value":"0.8 kA","Switching Function / Short-Term Delayed":"No","size of installation devices / acc. to DIN 43880":"1","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=604182&mlfb=5SV3446-8"},"ai":{"faq":[{"question":"Where can I buy the 5SV3446-8 and get a price?","answer":"We source and quote this part to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What is the 5SV3446-8's depth and width for panel fit?","answer":"The installation depth is 70 mm and the width is 72 mm (4 modular units on DIN rail). This fits standard 100 mm deep enclosures without gland-plate interference."},{"question":"What compliance documentation does Siemens provide for the 5SV3446-8?","answer":"The part carries ratings per IEC 61008-1 and EN 60898, overvoltage category III, and is silicon-free. Standard Siemens declarations (CE, UKCA, RoHS) apply — request specific certificates with your RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SV3446-8","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/5SV3446-8 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}}