QO250GFI THERMAL MAGNETIC, COMMON TRIP, EQUIPMENT PROTECTOR TYPE; 1.5 INCH W X 2.91 INCH D X 4.12 INCH H SIZE; QO LOAD CENTER, NQOD PANELBOARD, OEM INTERIOR/SPEED-D[T] SWITCHBOARD DISTRIBUTION PANEL USED ON; 12 TO 4 AWG (ALUMINUM), 14 TO 6 AWG (COPPER) WIRE SIZE; UL, CSA APPROVAL; 120/240 VAC AT 50/60 HZ (UL/CSA) VOLTAGE RATING; PLUG ON MOUNTING; 10 KILOAMPERE INTERRUPTING RATING; 50 AMPERE CURRENT RATING; 2 POLE(S); BOX LUG TERMINAL TYPE; 4 TO 6 MILLIAMPERE TRIP SENSITIVITY; QWIK-GARD[R] BRAND; QO-GFI MODEL