SQUARE D SDSA3650D Surge Protection Device, 3 Phase, 600V AC, 3 Poles, 3 Wires($160.99Value)
Surge Protection Device, Nonmetallic, Chase Nipple Size 1/2 in, Black, Amps 40 kA, Depth 3.4 in, Enclosure Material Plastic, Enclosure NEMA Rating 4X