Weidmueller VPU AC II 3+1 R 300/50

The VPU AC II 3+1 R 300/50 is a voltage protection unit for AC systems. "II" represents Class II surge protection, while "3+1" indicates protection for three phases plus neutral. "R" denotes a reset function. "300" signifies the voltage capacity, and "50" indicates the current rating. This unit is designed to safeguard electrical equipment from voltage surges and fluctuations, providing reliable protection in industrial and commercial environments that require stable and secure surge protection.