Phoenix Contact 2910335 A UL recognized type 1 surge protection device (SPD) and IEC type 2 plug can be used with VAL-US base elements, equipped with a varistor to regulate voltage spikes and a thermal disconnect to prevent overheating, providing both mechanical and visual alerts for faults or malfunction.,Phoenix Contact 2910335 A UL recognized type 1 surge protection device (SPD) and IEC type 2 plug