The Square D 9999-PRV250 Varistor Protection Module provides surge protection for control circuits by clamping transient voltages with a varistor. Identified by model 9999-PRV250, this device is part of Square D's Class 9999 varistor protection lineup and is designed to be used with Square D equipment to safeguard downstream control components from voltage spikes. As a varistor-based protection module in the 9999 family, it delivers dedicated transient suppression for industrial control panels.
