{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SV3344-6LB01","brand":"Siemens","brandSlug":"siemens","productSlug":"5SV3344-6LB01","canonicalUrl":"https://aoctrl.com/siemens/5SV3344-6LB01","factsUrl":"https://aoctrl.com/api/mcp/products/5SV3344-6LB01","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SV3344-6LB01, 4-pole RCCB, Type A, 40 A rated current, 30 mA residual trip, 400 V AC, 10 kA SCCR, short-time delayed, DIN rail mount.","salesMarkdown":"## RCCB for 400 V AC distribution — 40 A, 30 mA, Type A, short-time delayed The Siemens SENTRON 5SV3344-6LB01 is a 4-pole residual current operated circuit breaker (RCCB) rated for 40 A at 400 V AC, 50/60 Hz. It trips on a 30 mA residual current and carries a 10 kA short-circuit current rating (SCCR) per IEC 61008-1. This is a short-time delayed (selective) RCCB — the switching function is intentionally delayed to coordinate with downstream devices. That means it will ride through short-duration earth faults (up to its surge current resistance of 3 kA, per) without tripping, letting the downstream MCB or RCBO clear the fault first. Use it at the incoming supply or as a main switch in a sub-distribution board where selectivity is required. Depth is 70 mm, which matches standard 60 mm grid spacing enclosures — no panel depth surprises. ## Fault energy handling and coordination The 5SV3344-6LB01 is rated for a maximum let-through current of 5 200 A and a permissible I²t value of 58 000 A²·s. These numbers define the energy the device can pass during a fault before clearing — critical for verifying that downstream cables and terminals are thermally protected. It also carries a rated impulse withstand voltage of 0.8 kA per IEC 61008-1 and a surge current resistance of 3 kA (8/20 µs waveform). That surge rating is what keeps it from nuisance-tripping when a nearby lightning strike or capacitor bank switching injects a transient into the earth path. The maximum permissible series fuse is 100 A, which limits the fault current the RCCB sees if installed behind a larger upstream breaker. Silicon-free construction — relevant for automotive or paint-shop environments where silicone outgassing can cause adhesion failures. Power dissipation is 1.8 W per pole at rated current in hot operating state — 7.2 W total for the 4-pole unit. That is modest for a 40 A device, but worth summing in a densely packed enclosure to stay below the cabinet's thermal limit.","metaTitle":"Siemens 5SV3344-6LB01 SENTRON RCCB, 4P, 40A, 30mA, Type A","metaDescription":"Siemens SENTRON 5SV3344-6LB01 RCCB, 4-pole, Type A, 40 A rated, 30 mA trip, 10 kA SCCR. Active production. Quoted to order. IEC 61008-1.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"70 mm","Width":"72 mm","title":"5SV3344-6LB01","Height":"90 mm","Maximum":"45 °C","Minimum":"-25 °C","description":"Residual current operated circuit breaker, 4-pole, type A, super resistant, In: 40 A, 30 mA, Un AC: 400 V","Grid Spacing":"60 mm","Number Of Poles":"4","lifecycle_stage":"current","Fastening Method":"DIN rail (REG)","Mounting Position":"any","at AC rated value":"40 A","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Maximum Permissible":"75 °C","Minimum Permissible":"-40 °C","Product Designation":"RCCB","protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage Category":"III","Design Of The Product":"Short-time delayed","I2t value permissible":"58 000 A²·s","Residual Current Type":"A","Product Feature Silicon-Free":"Yes","Short-Circuit Current Rating":"10 kA","Number Of Modular Width Units":"4","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":"3 kA","according to IEC 61008-1 rated value":"0.8 kA","Switching Function Short-Term Delayed":"Yes","Value Range Of The Operating Frequency":"50/60 Hz","value range of the supply voltage at AC":"400 V","Value Range Of The Supply Voltage Frequency":"50 Hz","Supply Voltage For Testing Equipment Minimum":"195 V","Mechanical Service Life (Operating Cycles) Typical":"10 000","Product Extension Installable Supplementary Devices":"Yes","Short-Circuit Current Of Series Fuse Maximum Permissible":"100 A","for rated value of the current at AC in hot operating state per pole":"1.8 W"}},"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=1119347&mlfb=5SV3344-6LB01"},"ai":{"faq":[{"question":"What is the 5SV3344-6LB01 used for?","answer":"It is a 4-pole residual current circuit breaker (RCCB) for 400 V AC distribution boards. It protects against earth faults (30 mA trip, Type A) and is short-time delayed for selectivity with downstream overcurrent devices."},{"question":"What are the key ratings of the 5SV3344-6LB01?","answer":"Rated current 40 A, residual trip 30 mA, voltage 400 V AC, frequency 50/60 Hz, SCCR 10 kA, surge current resistance 3 kA, impulse withstand 0.8 kA per IEC 61008-1."},{"question":"Where can I buy the 5SV3344-6LB01?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for your quantity and target delivery window."},{"question":"Will the 5SV3344-6LB01 fit a panel designed for a 5SL4363-7?","answer":"The 5SV3344-6LB01 is a 4-pole RCCB (residual current device) while the 5SL4363-7 is a 3-pole MCB (overcurrent only) — different function, different wiring. They are not drop-in replacements for each other. The 5SV3344-6LB01 occupies 4 modular units (72 mm) on a DIN rail, so check the panel's spare width and whether the circuit requires earth-fault protection."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SV3344-6LB01","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/5SV3344-6LB01 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}}