NQ and NF Panelboards are versatile panelboards that feature a wide selection of circuit breakers, accessories, and ready to install kits. NQ and 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 mechanical lugs are rated at 250A. Each lug will accept one 6 AWG to 350kcmil copper or aluminum wire.