Weidmueller VPU AC I 4 275/25 LCF S

The VPU AC I 4 275/25 LCF S is a voltage protection unit for AC systems, offering four-phase protection, including neutral ("4"). "275" refers to the voltage capacity, and "25" indicates the current rating or another operational parameter. "LCF" likely stands for low-frequency protection or load current filtering, and "S" suggests surge protection. This unit is designed to protect electrical equipment from voltage surges or fluctuations, commonly used in industrial and commercial applications to ensure the reliability and safety of the electrical system.