Weidmueller VPU AC I 1 N-PE 305/100 S

The VPU AC I 4 R 275/25 LCF MB is a voltage protection unit for AC systems, offering four-phase protection, likely including neutral ("4"). "R" suggests a reset function, "275" refers to the voltage capacity, and "25" denotes the current rating or another operational parameter. "LCF" likely indicates low-frequency protection or load current filtering, while "MB" could point to motor protection or a specific feature for certain applications. This unit is designed to protect electrical equipment from voltage surges and fluctuations, commonly used in industrial and commercial environments to ensure system reliability and safety.