{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SV3444-6LA","brand":"Siemens","brandSlug":"siemens","productSlug":"5SV3444-6LA","canonicalUrl":"https://aoctrl.com/siemens/5SV3444-6LA","factsUrl":"https://aoctrl.com/api/mcp/products/5SV3444-6LA","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON RCCB, 4-pole, 40 A, 100 mA residual, Type A, instantaneous, DIN rail, IP20.","salesMarkdown":"The Siemens SENTRON 5SV3444-6LA is a 4-pole residual current circuit breaker (RCCB) rated 40 A at 50 Hz, with a 100 mA residual operating current and Type A sensitivity — meaning it detects sinusoidal AC and pulsating DC fault currents, common in modern electronics-heavy loads like VFDs, UPS systems, and switched-mode power supplies. It is an instantaneous (non-time-delayed) device, so it trips without intentional delay on a residual fault — suited for circuits where a short delay could cause equipment damage or where coordination with upstream time-delayed RCCBs is not required. The short-circuit current rating (SCCR) is 10 kA per IEC 61008-1 and 0.8 kA per EN 60898, meaning it safely interrupts faults up to those levels without needing an upstream fuse or breaker to limit the let-through — a key factor for panel selectivity and compliance with IEC 60364. ## Thermal Performance & Derating","metaTitle":"Siemens SENTRON 5SV3444-6LA RCCB, 40 A, 100 mA, Type A, 4-Po","metaDescription":"Siemens SENTRON 5SV3444-6LA RCCB, 40 A rated current, 100 mA residual current, Type A, 4-pole, instantaneous, 10 kA SCCR, DIN rail mount. 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":"5SV3444-6LA","Height":"90 mm","Maximum":"45 °C","Minimum":"-25 °C","description":"Residual current operated circuit breaker, 4-pole, Type A, In: 40 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":"40 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":"58 000 A²·s","at 40 °C / rated value":"40 A","at 45 °C / rated value":"40 A","at 50 °C / rated value":"40 A","at 55 °C / rated value":"40 A","at 60 °C / rated value":"40 A","at 65 °C / rated value":"40 A","at 70 °C / rated value":"40 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":"5 200 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","size of installation devices / acc. to DIN 43880":"1","Mechanical Service Life (Operating 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=555549&mlfb=5SV3444-6LA"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SV3444-6LA","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/5SV3444-6LA 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}}