Weidmueller VPU AC II 4 R 300/50 Y

The VPU AC II 4 R 300/50 Y is a voltage protection unit for AC systems. "II" indicates Class II surge protection, while "4" signifies protection for four circuits or phases. "R" refers to a reset function. "300" represents the voltage capacity, and "50" denotes the current rating. "Y" likely indicates a specific feature related to grounding or circuit configuration. This unit is designed to protect electrical equipment from voltage surges and fluctuations, making it ideal for industrial and commercial settings where stable surge protection is essential.