Surgelogic™ Type EMB 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 200,000 Amps and Indoor/Outdoor rated. This is UL type 2. Designed for 480Y/277VAC three phase systems. This product is UL and CSA certified.