Weidmueller VPU AC I 4 R 275/25 LCF S

The VPU AC I 4 R 275/25 LCF S  is a voltage protection unit for AC systems, offering three-phase plus neutral protection ("3+1"). "R" indicates a reset function, "275" refers to the voltage capacity, and "25" denotes the current rating or another operational parameter. "LCF" likely stands for low-frequency protection or load current filtering, while "S" suggests surge protection. "2PE" could indicate a two-pole earth connection or grounding configuration. This unit is designed to protect electrical equipment from voltage surges and fluctuations, commonly used in industrial and commercial environments for added reliability and safety.