Leviton Surge Protective Device, Type 1, 120/240 VAC, 20 A Electrical Rating, 50/60 Hz Frequency, 2 Pole, 10 kA Short Circuit, 25 kA Peak Surge Current, 600/1200 V Clamping, Modes of Protection: L-N/L-L, LED Indicator, Plug-On Terminal, White, 3.92 in L x 3.1 in W x 2.04 in D