Weidmueller VPU AC II US 4 240/50

The VPU AC II US 4 240/50 is a voltage protection unit designed for AC systems. "II" indicates Class II surge protection, and "US" likely refers to its suitability for use in the United States or compliance with U.S. standards. "4" refers to protection for four phases or circuits. "240" represents the voltage rating, and "50" indicates the current rating. This unit is intended to protect electrical equipment from voltage surges and fluctuations, offering surge protection for multi-phase systems in industrial or commercial environments.