With 1, 1/2 And 3/4 IN Conduit Knockouts |
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 |
Other boxes provided with flat ground tapped hole, except plenum boxes |
84 lb per 100 |
Side knockouts: (8) 1 in |
Bottom knockouts: (3) 1/2 in, (2) 3/4 in |
Welded construction |
Commercial product |
0.0625 in minimum thickness |
AISI/SAE 1008 Steel |