{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SV3344-6KK03","brand":"Siemens","brandSlug":"siemens","productSlug":"5SV3344-6KK03","canonicalUrl":"https://aoctrl.com/siemens/5SV3344-6KK03","factsUrl":"https://aoctrl.com/api/mcp/products/5SV3344-6KK03","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON RCCB, Type A, 4-pole, 40 A, 30 mA trip, instantaneous, 10 kA SCCR, 400 V AC, DIN rail mount.","salesMarkdown":"The Siemens SENTRON 5SV3344-6KK03 is a 4-pole, Type A residual current circuit breaker (RCCB) rated 40 A at 400 V AC, with a 30 mA trip threshold and instantaneous response. It's built to protect against earth faults in circuits where non-sinusoidal AC and pulsating DC residual currents can occur — think variable-speed drives, washing machines, or any gear with rectifiers that spit out chopped waveforms. Snaps onto DIN rail (REG) in any orientation, so you're not fighting gravity in a tight enclosure. It's 4 modular width units wide — 72 mm — and 70 mm deep, which is standard for this class. The depth is the same as its installation depth, meaning nothing sticks out the back to foul the gland plate or busbars. Silicon-free construction, which matters if you're potting or conformal-coating nearby boards. ## Thermal derating — the real-world rating Push it to 45 °C and it's good for 38.1 A; at 50 °C it's 35.59 A; at 55 °C it's 32.29 A; at 60 °C it's 28.19 A; at 65 °C it's 23.3 A; at 70 °C it's 17.6 A. That derating curve is the one that matters when you're stuffing four of these side-by-side in a non-ventilated enclosure.","metaTitle":"Siemens SENTRON 5SV3344-6KK03 RCCB, 40A, 30mA, 4-Pole, Type","metaDescription":"Siemens SENTRON 5SV3344-6KK03 RCCB, 40A rated, 30mA trip, 4-pole, Type A, instantaneous, 10kA SCCR, DIN rail. Current production. 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":"5SV3344-6KK03","Height":"90 mm","Maximum":"45 °C","Minimum":"-25 °C","description":"Residual current operated circuit breaker, 4-pole, type A, In: 40 A, 30 mA, Un AC: 400 V, 50...400 Hz","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","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":"30 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...400 Hz","value range / of the supply voltage / at AC":"400 V","Value Range / Of The Supply Voltage Frequency":"50...400 Hz","Supply Voltage / For Testing Equipment / Minimum":"195 V","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/2f9e83eb169179ddd4428d6075f216bf.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=690066&mlfb=5SV3344-6KK03"},"ai":{"faq":[{"question":"Where can I buy 5SV3344-6KK03 and how do I get a price?","answer":"The part is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time."},{"question":"What is 5SV3344-6KK03's listed depth on this component line?","answer":"The listed depth is 70 mm, which matches the installation depth — no extra projection behind the DIN rail."},{"question":"What is 5SV3344-6KK03's listed width on this component line?","answer":"The width is 72 mm, which corresponds to 4 modular width units (each 18 mm) on a standard DIN-rail panel."},{"question":"Will 5SV3344-6KK03 drop into a panel that was specified around 5SL4363-7 without rewiring?","answer":"The 5SV3344-6KK03 is a 4-pole RCCB (Type A, 40 A, 30 mA), while the 5SL4363-7 is a different class of device — an MCB. They serve different protective functions (earth leakage vs overcurrent), so they are not drop-in substitutes without circuit redesign."},{"question":"What compliance documentation does this brand provide for 5SV3344-6KK03?","answer":"The part is designed to IEC 61008-1 (the RCCB standard) and carries a 0.8 kA rated surge current resistance per that standard. It is a Siemens SENTRON product, which typically ships with CE, UKCA, and EAC declarations; specific RoHS/REACH documentation is available on request with the RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SV3344-6KK03","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/5SV3344-6KK03 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}}