Model Information: The specific model is labeled as "VAL-MS 350 VF-UD ST" with a continuous operating voltage (\(U_{c}\)) of 350 V AC.Protection Rating: It features a maximum discharge current (\(I_{max}\)) of 20 kA per position and a voltage protection level (\(U_{p}\)) of 1.5 kV.Applications: These devices are commonly used as Type 2 surge arresters in photovoltaic (PV) systems to safeguard solar power equipment.