Weidmueller VPU AC II US 1 R 277/50

The VPU AC II US 1 R 277/50 is a voltage protection unit for AC systems. "II" indicates Class II surge protection, and "US" suggests that it is designed to meet U.S. standards or is suitable for use in the U.S. market. "1" refers to protection for a single phase or circuit. "R" denotes a reset function. "277" represents the voltage rating, and "50" signifies the current rating. This unit is designed to protect electrical equipment from voltage surges and fluctuations in single-phase systems, making it ideal for industrial, commercial, or residential applications requiring reliable surge protection.