Surgelogic™ Type EMD systems are externally mounted surge protection devices. Designed for external installation, the device enables convenient access for retrofitting and maintenance without requiring modifications to internal panel configurations. External mounting limits fault impact on internal equipment, enhancing reliability. With a surge current rating of 300,000 Amps, Indoor/Outdoor rated and includes Surge counter. It also includes a disconnect switch and Type 2. Rated for 208Y/120VAC three phase systems. This product is UL and CSA certified.