Weidmueller VPU AC I 4 R 440/25 LCF

The VPU AC I 4 R 440/25 LCF is a voltage protection unit for AC systems, offering four-phase protection, including neutral ("4"). "R" indicates the presence of a reset function, allowing the unit to return to normal operation after a fault. "440" refers to the voltage capacity, and "25" represents the current rating or another operational parameter. "LCF" likely stands for low-frequency protection or load current filtering, which helps mitigate voltage fluctuations. This unit is designed to protect electrical equipment from voltage surges and fluctuations, making it ideal for industrial and commercial applications where reliable and stable operation is essential.