Boxes with concentric or eccentric knockouts are suitable for bonding without any additional bonding means where used in circuits above or below 250 Volts|Unless otherwise noted all concentric or eccentric knockouts are 1/2 - 3/4 in combinations|Single and double gang metallic outlet and switch boxes are acceptable for use in two-hour fire rated walls|Groundskeeper raised ground feature on boss inside box provides one or two NO.10-32 tapped hole, allowing a 3/8 in long green ground screw to be threaded into box without contacting mounting surface|Other boxes provided with flat ground tapped hole, except plenum boxes|2-3/4 in centre-to-centre open ear|1/2 in raise|For use with 4 in octagon and round boxes

There are currently no resources for this product.