SolaHD Surge Protective Device, Series: STV 100K, 120 VAC, 47 to 63 Hz, 3 Wires, 100 kA Peak Surge, 3 kA Nominal Discharge, Modes of Protection: L-N/L-L/L-G/N-G, <0.5 ns Response, LED/Audible Alarm Indicator, 1 Phase, Environmental Conditions: -40 to 60 deg C Operating Temperature, 0 to 95% Non-Condensing Humidity, NEMA 12, Flange Mount, Metal, 3.2 in H x 6 in W x 4 in D