<p>When it comes to safeguarding your industrial or commercial electrical systems, the SFD3 Surge Filter stands out as a reliable choice. Designed for demanding environments, this robust device offers essential protection against voltage spikes and surges that can compromise system integrity.</p><p>The SFD3 operates efficiently on a three-phase power supply, making it suitable for various applications. It is engineered to handle rated voltages of 275 VAC between line and neutral (L-N) and 255 VAC between neutral and protective earth (N-PE), ensuring compatibility with standard electrical systems. With its impressive rated current capacity of 50 kA (L-N) and 60 kA (N-PE), this surge filter provides substantial protection against transient overvoltages.</p><p>Installation is straightforward thanks to its DIN rail mounting type, which simplifies integration into existing setups. The compact design, measuring 180 mm in width, 95 mm in height, and 69 mm in depth, ensures that it occupies minimal space within your control panels while still delivering maximum performance.</p><p>Durability is a key feature of the SFD3 Surge Filter. It boasts an IP20 degree of protection, safeguarding internal components from solid objects greater than 12 mm in size—ideal for indoor installations where dust ingress might be a concern. Additionally, its wide operational temperature range from -40&#176;C to +70&#176;C ensures reliable performance even under extreme conditions.</p><p>The SFD3 meets stringent international standards such as IEC 61643-11 and AS/NZS 1768. It also complies with UL 1449 and IEEE 62.41.2 standards—providing assurance of quality and safety across different regions.</p><p>This surge filter features three poles designed to effectively manage voltage fluctuations across all phases. The voltage protection level is less than 1 kV for L-N connections and less than 1.5 kV for N-PE connections—offering peace of mind by reducing the risk of damage during electrical disturbances.</p><p>In terms of handling lightning impulse currents—a critical consideration—the SFD3 accommodates up to 6.25 kA on L-N lines and an impressive capacity of up to 15 kA on N-PE lines.</p><p>For professionals seeking dependable surge protection solutions that meet rigorous technical requirements without compromising on practicality or ease-of-use—the SFD3 Surge Filter delivers exceptional value backed by proven standards compliance ensuring long-term reliability within any installation scenario you may encounter today or tomorrow!</p>