Square D™ Homeline™ Main Breaker Loadcenter, 1-ph Convertible Neutral, 120/240 VAC, 200 A, 1 Pole, 50/60 Hz, 22 kA Interrupt, 40 Circuits, HOM Breaker, Panel Breaker Mounting, 3-Wire Wiring Configuration, 20 Spaces, 4 AWG to 250 kcmil, 4 AWG to 300 kcmil Wire, Flush/Plug-On/Surface Mount, NEMA 1, 9 Enclosure Box, Steel Housing, 14.25 in W x 3.75 in D x 29.86 in H