The LEA B70-00-6010 (SP 100) is a UL 1449 3rd edition surge protection device for 277/480 Vac 3-phase wye service with visual and remote status indication and 100 kA of surge current capacity per phase. It is configured in a NEMA 4 enclosure and boasts a 20-year manufacturer warranty. LEA B70-00-6010 Specifications: Electrical Configuration: 277/480 Vac 3-phase wye Mount Type: Panel Standards: UL 1449 3rd edition , NEMA 4 Max Surge Current: 100 kA per phase Other Features: 100 kA surge suppression per phase Weight (Kilograms): 1.4 kg Dimensions (Inches): 6.3 x 6.3 x 3.5 Dimensions (cm): 16.0 cm x 16.0 cm x 8.9 cm