Advanced power and equipment protection for Square D™ NQ panelboards. Installs in two minutes or less, a significant reduction from the typical 20 minutes for an externally mounted SPD.

EMA Replacement Modules Square D™ brand Surgelogic™ EMA SPDs products feature a design based on individual phase modules for a flexible, cost effective way to achieve superior surge suppression at every level of the electrical distribution system. Modularity results in lower life cycle costs and fast, easy service or replacement.