NF Panelboard interiors can be used for applications such as commercial buildings, industrial buildings, stadiums, and offices. These interiors provide protection for commercial and industrial applications. NF Panelboards are versatile panelboards that feature a wide selection of circuit breakers, accessories, and ready to install kits. NF Panelboards have modular construction to accept field installable accessories and conversion kits. This standard mechanical lug kit is for the main lugs of the NF interior. These aluminum lugs are rated at 250A. Each lug will accept one 6 AWG to 350 kcmil copper or aluminum wire.