Square D™ Surgelogic™ Surge Protection Module, Type MA, 480 Delta VAC, 3 Pole, 3 Wires, 200 kA Short Circuit Current, 160 kA Peak Surge, 550 VAC Clamping, 20 kA Nominal Discharge, LED Indicator, 3, Environmental Conditions: 149 deg F Operating Temperature, NEMA 2, Panel Mount, Plastic, Black, 6.25 in H x 3.26 in W x 2.69 in D