Square D™ Panelboard Interior, 3-Phase, Series: NQ Series, 240 VAC/48 VDC, 400 A, 30 Spaces, Short Circuit Current Rating: 100000 A, QHB/QOB-VH/QOB Breaker, 4-Wire Wiring Configuration, Silver Plated Copper Bus, Panel Mount, NEMA 1, Copper Housing, 20 in W x 5-3/4 in D x 50 in H