Square D™ Homeline™ Qwik-Grip™ Main Breaker Loadcenter, 1-Phase Convertible Neutral, 120/240 VAC, 200 A, 50/60 Hz Frequency, 10/22 kA Interrupt, 80 Circuits, 12Q Breaker, 40 Spaces, 4 AWG to 250 kcmil Aluminum/Copper Wire, Plug-On Mounting, NEMA 1 Enclosure, Galvanized Steel Housing Material, 14.25 in W x 3.75 in D x 39.37 in H Dimensions