{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SV3644-6KL","brand":"Siemens","brandSlug":"siemens","productSlug":"5SV3644-6KL","canonicalUrl":"https://aoctrl.com/siemens/5SV3644-6KL","factsUrl":"https://aoctrl.com/api/mcp/products/5SV3644-6KL","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SV3644-6KL RCCB, 4-pole, 40 A, 300 mA, Type A, instantaneous, 10 kA SCCR, 230/400 V AC, 50 Hz.","salesMarkdown":"The Siemens SENTRON 5SV3644-6KL is a 4-pole residual current circuit breaker (RCCB) rated 40 A at 230/400 V AC, 50 Hz, with a 300 mA residual trip threshold and Type A waveform sensitivity. It is an instantaneous design — no intentional short-time delay — so it trips as soon as the fault current exceeds the threshold. The 40 A rating holds at 40 °C ambient; derate to 38.1 A at 45 °C, 35.59 A at 50 °C, and drops sharply above that — 17.6 A at 70 °C. If your panel runs hot, size the upstream breaker accordingly. The 300 mA residual threshold suits circuits with high leakage from electronics or long cable runs, where a 30 mA device would nuisance-trip. Type A detects pulsating DC fault currents (common from rectifier loads) in addition to sinusoidal AC. The instantaneous trip means no coordination delay — the RCCB opens fast on a ground fault. Mounts on DIN rail (REG) in any orientation. Width is 72 mm (4 modular units). Depth 70 mm. The N terminal is on the left side of the device. Rated for overvoltage category III. IP20 with conductors connected — fine inside a closed distribution board.","metaTitle":"Siemens SENTRON 5SV3644-6KL RCCB, 4P, 40 A, 300 mA, Type A","metaDescription":"Siemens SENTRON 5SV3644-6KL RCCB, 4-pole, 40 A rated, 300 mA residual, Type A instantaneous, 10 kA SCCR, current lifecycle stage. DIN rail mount, 72 mm wide.","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":"5SV3644-6KL","Height":"90 mm","Maximum":"45 °C","Minimum":"-25 °C","description":"Residual current operated circuit breaker, 4-pole, type A, In: 40 A, 300 mA, Un AC: 400 V, N left","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":"N left","Maximum Permissible":"75 °C","Minimum Permissible":"-40 °C","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":"38.1 A","at 50 °C / rated value":"35.59 A","at 55 °C / rated value":"32.29 A","at 60 °C / rated value":"28.19 A","at 65 °C / rated value":"23.3 A","at 70 °C / rated value":"17.6 A","Short-Circuit Current Rating":"10 kA","Number Of Modular Width Units":"4","Product Feature / Silicon-Free":"Yes","Position / Of Power Supply Cord":"top or bottom","Let-Through Current / Permissible":"5 200 A","Tripping Fault Current / Rated Value":"300 mA","Surge Current Resistance / Rated Value":"1 kA","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 (Switching Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$127.26","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ed280646498d532ac59ddeccc41d4200.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=311256&mlfb=5SV3644-6KL"},"ai":{"faq":[{"question":"What are the key ratings for the 5SV3644-6KL?","answer":"4-pole RCCB, 40 A rated at 40 °C, 300 mA residual, Type A instantaneous, 10 kA SCCR, 230/400 V AC, 50 Hz. Derate current above 40 °C."},{"question":"What is the physical size of the 5SV3644-6KL?","answer":"72 mm wide (4 modular units), 70 mm deep, 90 mm high. Mounts on DIN rail."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SV3644-6KL","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/5SV3644-6KL 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}}