Weidmueller VPU AC II 4 R 300/50 Y

The VPU AC II 2 R 300/50 Y is a voltage protection unit designed for AC systems. "II" indicates two-phase protection, ensuring safety for two phases of the electrical system. "2" likely refers to a specific protection configuration or level of coverage. "R" may indicate a reset function or specific protective feature. "300" represents the voltage capacity, while "50" denotes the current rating or another key operational parameter. "Y" may indicate a special feature, such as a particular surge protection characteristic or setting. This unit is used in industrial or commercial applications to safeguard electrical equipment from voltage surges, fluctuations, and faults, ensuring system stability and protection.