Weidmueller VPU AC I 3 300/12.5

The VPU AC I 3 300/12.5 is likely a voltage protection unit designed for alternating current (AC) systems. The "3" could indicate three protection stages or circuits, offering enhanced safeguarding for equipment. "300" likely refers to the voltage or power capacity, and "12.5" may represent a current rating or other operational specification. This unit helps protect electrical systems from voltage spikes or fluctuations, commonly used in industrial applications.