NQ Panelboard interiors can be used for applications such as commercial buildings, industrial buildings, stadiums, and offices. NQ Panelboards are versatile panelboards that feature a wide selection of circuit breakers, accessories, and ready to install kits. NQ Panelboard interiors are field convertible to top or bottom feed. NQ Panelboards are convertible from main lug to main breaker. NQ Panelboards provide 200% rated neutrals for nonlinear loads. Some factory installed options are split bus, lighting contactors, compression lugs, surge protection devices, and phenolic nameplates. This NEMA 1 surface mount panelboard provides has a service entrance rating. The main lugs are rated at 400A, 120/240 VAC 3 phase. The interior has 42 spaces. This NQ panelboard has a 20 inch width. This NQ panelboard is UL listed and CSA certified by UL.