Weidmueller VPU I 4 400V/25KA

The VPU I 1 N-PE 260V/100KA is a voltage protection unit for AC systems. "I" indicates the protection type, "1" refers to single-phase protection, "N-PE" denotes neutral-to-earth protection, and "260V" is the voltage rating. It can handle surge currents up to 100kA, providing robust protection against voltage surges and fluctuations.