Weidmueller VPU I 3 R LCF 280V/12,5KA

The VPU I 3 R LCF 280V/12.5KA is a voltage protection unit for AC systems. "I" refers to a specific protection class or type. "3" indicates protection for three phases or circuits. "R" denotes a reset function. "LCF" likely refers to a feature such as "Low Current Failure" or another specialized protective mechanism. "280V" represents the voltage rating, and "12.5KA" indicates the surge current rating, meaning the unit can withstand up to 12.5 kA of surge current. This unit is designed to protect electrical equipment from voltage surges and fluctuations in multi-phase systems, offering enhanced protection with specialized features like the LCF function, typically used in industrial or commercial environments.