Weidmueller VPU I 0 N-PE 440V/100KA

The VPU I 0 N-PE 440V/100KA is a voltage protection unit designed for AC systems. "I" likely refers to a specific protection class or type. "0" indicates protection for a single circuit or configuration, potentially without a neutral connection. "N-PE" stands for protection between the neutral (N) and protective earth (PE), aimed at mitigating voltage surges or faults between these two points. "440V" represents the voltage rating, and "100KA" indicates the surge current rating, meaning the unit can withstand up to 100 kA of surge current. This unit is intended to provide high-level protection against large voltage surges in systems requiring neutral-to-earth fault protection, commonly used in industrial or commercial environments where handling significant surge currents is critical.